15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh

On Friday, September 8, 2017 at 4:05:48 AM UTC-4, wrote:
15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh



Why? Folks pay all sorts of crazy money for things they want. These are 100uf at 160V, and they're bipolar. Maybe for some magical crossover network perhaps.


As for the second link, it's a "buy it now". Asking isn't the same as getting.

In article ,
says...

15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh

Some of the people into high end audio systems are nuts.

They will pay over $ 100 for the 6 foot or so of wire that goes from the
equipment to the 120 volt wall socket. It is suspose to be some special
type of oxygen free copper. They do not take into account that there is
probably 25 to 100 feet of regular wire going to the breaker box and all
the other junk wire from there to the power company.

Even some old stock solder made at a certain place is going for big
bucks.


While I am not a wine drinker, I bet the audio people and the wine
people are about the same. Audio people can not tell the difference in
the equipment. Probably over 90% could not tell one wine from the other
if in a glass and not a bottle. Some goes for a few bucks and others
are auctiioned off for thousnds a bottle.

On Friday, September 8, 2017 at 6:57:37 AM UTC-7, Ralph Mowery wrote:
Even some old stock solder made at a certain place is going for big
bucks.
Monoisotopic lead will promote more uniform conduction. Achieving this is similar to the process used to enrich uranium. Or, you could start with an intrinsically monoisotopic element like gold.

On 08/09/2017 08:05, wrote:
15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh



There always has been "bids from the chandelier" no different now its
internet "auctions"

On Fri, 8 Sep 2017 09:57:32 -0400, Ralph Mowery
wrote:

In article ,
says...

15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh

Some of the people into high end audio systems are nuts.

They will pay over $ 100 for the 6 foot or so of wire that goes from the
equipment to the 120 volt wall socket. It is suspose to be some special
type of oxygen free copper. They do not take into account that there is
probably 25 to 100 feet of regular wire going to the breaker box and all
the other junk wire from there to the power company.

If they will pay $100 for 6ft of cord, they can buy a whole mile of it
for a mere $88,000. If the power plant is 25 miles away, for a mere
$2,200,000, they can run a dedicated cord all the way to the generator
at the power plant. This will work as long as no one drives over their
wire, and makes a hole in it, allowing oxygen to enter, which could
cause the cones to blow out of their speakers due to the inrush of
air.... LOL


Even some old stock solder made at a certain place is going for big
bucks.

Geezzzz, I might be rich and not know it. I have 10 or 12 one pound
spools of old solder from the 50's or 60's. It's the old lead/tin
solder. 60/40 or 50/50. I bought them at a flea market. The guy was
selling them for $3 a roll, and I think I offerred him $20 or $25 for
all of it, and bought it all. I just bought it to use.


While I am not a wine drinker, I bet the audio people and the wine
people are about the same. Audio people can not tell the difference in
the equipment. Probably over 90% could not tell one wine from the other
if in a glass and not a bottle. Some goes for a few bucks and others
are auctiioned off for thousnds a bottle.

I'm not a wine drinker either, but I was at an event where they had a
craft beer tasting contest. I do drink a little beer from time to time,
and I usually spend a couple bucks extra to get some beer with flavor,
because the commercial stuff is crap. But these people were getting full
bottles of different expensive beers, pouring one or two ounces into
tiny cups, and tasting it. The rest of the bottles were going to waste,
so a few guys were just handing them out to anyone nearby. I had no
complaints about any of them. To me, they were all good, but most tasted
about the same. (I guess thats why no one has ever asked me to be a
beer, wine, or food taster)

Getting back to electronics,

I dont consider myself an audiophile, but I do prefer the sound from a
tube amplifier over solid state, and I find vinyl records far superior
in sound quality to digitized music. (assuming a good record, stylus and
turntable is used). However, these days I am running a 600 watt stereo
commercial solid state Altec Lansing amp from the 70s. Being a good
brand name and commercial gear, I am pretty pleased with it.

But for superior sound, I still prefer records. Yet, I have a lot of MP3
songs and some CDs too. Some stuff can not be gotten on vinyl, or it
costs way too much, so I make due with digital music when I must. Some
of that can be compensated by using my equalizer as well as some effects
devices and an audio compressor.

But I dont have any $150 capacitors around here, and wont be buying any
either. Especially when they are all made about the same anyhow. Foil,
paper or plastic wound up, two pieces of wire, and a coating to hold it
all together.


I do have a money making idea though. I'll call them Tootsie Roll
capacitors. I plan to take tootsie rolls, shove a wire in each end, and
sell them on ebay for $100 each (plus shipping). There has to be enough
stupid people to buy them, and if they dont work in a circuit, the buyer
can always remove the wires and eat them..... LOL

wrote:

Geezzzz, I might be rich and not know it. I have 10 or 12 one pound
spools of old solder from the 50's or 60's. It's the old lead/tin
solder. 60/40 or 50/50. I bought them at a flea market. The guy was
selling them for $3 a roll, and I think I offerred him $20 or $25 for
all of it, and bought it all. I just bought it to use.


50/50 WAS for plumbing. The only solder that fools will overpay for was
made for the Phone company.


--
Never **** off an Engineer!

They don't get mad.

They don't get even.

They go for over unity! ;-)

In article ,
says...

wrote:

Geezzzz, I might be rich and not know it. I have 10 or 12 one pound
spools of old solder from the 50's or 60's. It's the old lead/tin
solder. 60/40 or 50/50. I bought them at a flea market. The guy was
selling them for $3 a roll, and I think I offerred him $20 or $25 for
all of it, and bought it all. I just bought it to use.


50/50 WAS for plumbing. The only solder that fools will overpay for was
made for the Phone company.

I don't know the money conversions,,,but I bet this stuff is very
expensive as it it sold by lengths of one meter.

http://www.ebay.com.au/itm/OYAIDE-SS...LVER-SOLDER-1-
METRE-LENGTHS-/350557902968

In article ,
says...

Getting back to electronics,

I dont consider myself an audiophile, but I do prefer the sound from a
tube amplifier over solid state, and I find vinyl records far superior
in sound quality to digitized music. (assuming a good record, stylus and
turntable is used). However, these days I am running a 600 watt stereo
commercial solid state Altec Lansing amp from the 70s. Being a good
brand name and commercial gear, I am pretty pleased with it.

But for superior sound, I still prefer records. Yet, I have a lot of MP3
songs and some CDs too. Some stuff can not be gotten on vinyl, or it
costs way too much, so I make due with digital music when I must. Some
of that can be compensated by using my equalizer as well as some effects
devices and an audio compressor.

But I dont have any $150 capacitors around here, and wont be buying any
either. Especially when they are all made about the same anyhow. Foil,
paper or plastic wound up, two pieces of wire, and a coating to hold it
all together.


Ever send your tubes off for the big chill ?

http://blog.thetubestore.com/cryo-tu...hilling-truth/

On 09/08/2017 07:33 AM, John-Del wrote:
On Friday, September 8, 2017 at 4:05:48 AM UTC-4, wrote:
15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh



Why? Folks pay all sorts of crazy money for things they want. These are 100uf at 160V, and they're bipolar. Maybe for some magical crossover network perhaps.


As for the second link, it's a "buy it now". Asking isn't the same as getting.


Sometimes people jack up the price when the item goes out of stock, then
drop it again when it's in stock again.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

I have a very cynical take on this stuff. A group of individuals get together around some *stuff* that has audiophool potential - stuff that may be hyped without consequence as there is no supporting evidence one way or the other, nor is it common enough to be checked independently. Then, within the group they bid it out of sight. Sit for a bit, then gradually trickle it onto the market with pre-set desirability. Make a bit of easy money, then move onto the next boutique item and engage in a similar process.

After basic quality control, suitability for the purpose, and simple screening, a cap is a cap is a cap is a cap is a cap.

Peter Wieck
Melrose Park, PA

On Fri, 08 Sep 2017 17:37:49 +0100, N_Cook wrote:

On 08/09/2017 08:05, wrote:
15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh



There always has been "bids from the chandelier" no different now its
internet "auctions"


This supposedly explains the purpose of Black Gate caps.
http://www.audionote.co.uk/articles/...te_story.shtml
(fact or hype???? Who knows).....

Here is that article:

The Black Gate Story
by Martin Colloms

First published Hi Fi News London July 2002. Author's copyright
reserved. No reprints or copies without permission. Unabridged Web
reproduction permitted for AN UK, 2003

Ticking away in the background, you might even say on the outer fringes
of audio design, is the question of how the actual audio building blocks
sound - the components themselves, not the made up equipment nor the
circuits. We are talking about resistors, amplifying and rectifying
devices, capacitors and wound components, transformers and inductors not
to mention connectors and wiring.

An electronics designer uses these parts to craft the circuitry and
layout of an audio product. Even now, in certain academic circles, the
existence of sound quality differences between technically well behaved
amplifiers is disputed. However, many others contend that not only do
the design and form of theoretical and practically expedited circuits
matter, but also the specific components or parts have their own sonic
characteristics.

Many such parts are customized through experience and unique build and
specification aspects known for many proprietary audio ranges. Companies
such as NAIM and Audio Note exemplify such attention to detail. Taking
one of many possible examples, substituting a given, selected power
transformer for one of nominally equivalent size, voltage and power,
will probably not generate an equal sound quality for the unit built
using it. In elevated audio circles, there is rather more to a
transformer spec than the standard figures for regulation and volt-
amperes.

It's some years since some reviews of component sound quality were
published in HFN- RR and there is understandably a limited following for
this material. Since then, in audiophile design circles, one branded
range of parts has been gaining a cult following for sheer sound
quality. If true, this is an important finding because the industry is
finding that the supply of traditional higher quality discrete audio
compatible parts is declining. This is due to the inexorable advance of
surface mount technology and larger, more complex integrated circuits.
The opportunity is diminishing for design creativity through the
considered selection of electronic parts in audio products. One aim of
this review is to alert designers of the possibilities and generate
broader international recognition of parts of real quality. We should
also help sustain the valuable endeavors of a dedicated band of audio
enthusiasts.

Black Gate is the name of the range of otherwise humble capacitors,
which has attracted our attention.
A Japanese inventor Kazuo Ishi patented a new way of making electrolytic
capacitors back in 1978. Rubycon, a noted Japanese company, makes a
large number of types under license.


I last looked at such a passive component when reporting on the
Moorcroft patent for the 'T' network capacitor for power supply
reservoirs, their successful use licensed in the UK to Aerovox. With
test power amplifier chassis in place it was possible to compare that
new three terminal design with a variety of conventional two terminal
devices [HFN-RR Aug '97].

For these 'T' network components the emphasis was on the internal
structure and current paths of the capacitor and a way was sought to
maximize the performance of the device by separation of charge and load
paths combined with a significant reduction in high frequency impedance.

Capacitor designers are painfully aware of the limitations of various
types, for example the odd and varied properties of the film dielectric
in the case of the plastic capacitors. Other aspects include the
conductive layer, is it an 'ethereal' vacuum deposition or perhaps one
with solid metal foil? For electrolytics, a wayward construction of
aluminum foil is used with a deeply etched oxide insulation, paper or
fibre separators, the whole bathed an electrically slow [slow ionic
charge movement] and complex conductive goo.
Generally the goo or electrolyte has a closely guarded composition and
is an ionic electrolyte, the standard way of achieving an electrical
barrier connection to the oxide layer on the foil. It's been known for a
long time that this electrolyte is imperfect and amongst other details
of construction it may well dominate the electrical performance
[distortion, bandwidth, loss factor] and in association, the sound
quality. For those not in the know, I here point out that the humble
electrolytic power supply reservoir can significantly contribute to
amplifier sound quality. Causing much vexation, such differences can't
generally be found even with the most searching measurements of the
complete amplifier itself.

It was again time to put some components to the test, and what better
choice than the ongoing developments in Black Gate technology.

Cherry-Picking
I can't hope to do justice to the Black Gate range as a totality so I've
cherry picked from the line, mainly dipping into the stores at UK agent
Audio Note for my selection. My task was complicated by early reports
that a significant running in period was required [several days] which
unfortunately turned out to be true. Certainly there were first
impressions available right away which gave helpful clues but at least a
day or two was needed to begin to properly gauge the result. For the
first series of tests I set up an open structure, a 'breadboard'
[actually a maple chopping board] mounted solid state amplifier of known
quality, to allow relatively easy substitution of the test capacitors in
a range of circuit positions. Later I also experimented with a trusted
audiophile CD player which it would not be fair to name.

I experimented with small, medium and large decoupling capacitors
[standard type 470u 50V, 470u 16V, 22u 50V, and 47uf 25V] as well as
standard power reservoirs [10,000uF 80V, 4,700u 35V and 220 + 220u 350V
'Heart of Muse'. Then came the NH type non polarized at 100uF 160V,
4,700 35V, singly and back to back, complemented by the NX type of
completely symmetrical non polars [470uF 16v, 22uF 50V, 20uF, 50V, 22u
6.3V, 0.47uF, 50V, and the delightful 0.1 uf 50V]. I also tried some of
the N and NX types in the ultimate back-to-back configuration. Finally I
checked out the bi-polar higher current crossover capacitors, [6.8u,
50V].

Certainly the Black Gate capacitors are very, very expensive and I was
consequently hoping for some significant advance over normal types.
However I couldn't possibly have predicted the magnitude of the sound
quality changes I heard. The changes were so dramatic that of necessity
I made multiple repeat comparisons over many days, and ultimately weeks
for this project.

Do please note that the use of these devices is not a 'fix all'
solution, you cannot just throw them at a design. Painstaking
comparisons showed that each type and value needs to match the
requirements of the specific circuit and circuit position as well as be
technically and sonically compatible with existing types of capacitor or
indeed other BGs when used.

While parallel combinations of Black Gates were generally foolproof, on
some occasions adding BGs in parallel to conventional capacitors could
actually make things worse. For example, even one of the best 100uF BG
'N' types when added to a fine sounding 10,00uF Great Supply Nichicon
reservoir didn't help matters, while by contrast a much smaller 0.47uF
NX really did lift this combination significantly when used as this
reservoir bypass.

With no significant measurable differences to speak of, judgments must
be made by ear. You need to know you equipment thoroughly, be used to
assessing small differences in sound quality and be open minded, expect
poorer as well as better results. If BG devices are going to help you,
will likely hear something right away, while the full benefit may not
develop until week of use has passed. In the case of the Nichicon and
100uF bypass tetst I can only speculate that the high frequency current
in the system must have been in some sort of disordered exchange, power
sharing above 10kHz or so, because while the sound became clearer, it
also became sharper and more aggressively forward in the treble.

With the 0.47u NX bypass such tonal changes were placed out of band
while the improvement was heard as improved yet subtle clarity, and a
purer sweeter upper treble; less noise and grain was now evident.


So strong was the BG effect, that existing selected quality 0.1uF
polypropylene de-couplers on the power amp supply lines had to be
removed from the circuit as they were found to audibly degrade the
performance advantage even of a 47uF 25V standard polarized BG used with
no other supplemental high frequency decoupling.

If the standard BG electrolytics were exceptional, and in my view
surprisingly so, and rated I my comparisons as typically 50% better for
sound quality than conventional good quality electrolytics, then the
'non polar' types were simply extraordinary.

Chosen by trial and error for the right value and circuit location, by
the end of the process the overall sound quality of my audio test
amplifier was transformed by the addition and/or substitution of BG
polars and non-polars. Moreover these capacitors as a whole proved just
as effective in many of the digital areas of an experimental D/A
converter as in its analogue sections, as they were for the test
amplifier. Here we are talking of clocks buffers and signal related
microprocessors

Cobwebs over the sound stage that you hadn't realized were there, were
now magically swept away. Substantial gains were also present in every
aspect of sound quality. The difference was so great that we were forced
backwards time and again to cross -check the non BG types and also to
refer back to other known reference grade audio types to make sure that
we were not fooling ourselves.


Running-In
When you are very familiar with how a product sounds, it is often
surprisingly easy to detect subtle changes between electronic components
used in it. This is even more obvious when the product is both very
short and simple, and very good.

I have previously reported on running-in phenomena with other
components, the most obvious being the moving coil loudspeaker.
Nevertheless amplifiers, CD players etc may be observed to run in over a
period of time, usually no less than several tens of hours. Sometimes
the rate of improvement will be slow, almost imperceptible, and several
weeks may pass before you actually realize the sound has got better.
Assessing these changes is made easier by a valued stock of long term,
well run-in, reference products.
A top quality amplifier, first auditioned from brand new may be
surprisingly flat and mushy sounding, almost average, but if of real
quality then rapid improvement may be heard over the first few hours of
use.

While in general Black Gates sound pretty good out of the box, the
potential performance ceiling is so high that the process of improvement
during running in can appear to go on for many tens of hours!


Take the 10,00uF 80V high current polar reservoir, performing very well
in the power supply of the test solid state amplifier First trials
showed it was certainly the best of this type in this test station,
compared with top grade alternatives including 'T network, Elna and
Great Supply. Nevertheless on a raw value basis these BGs did not at
first appear to be worth a quoted up to 6 times that of the other types.

And then they ran-in.......................

As the days went by the BG reservoirs gradually and inexorably built up
their lead to a point where their contribution to sound quality was so
great that a temporary return to those other well regarded reference
capacitors resulted in amazement, confusion and real disappointment.

Certainly this big BG reservoir is very expensive [about £100 each in
singles] but in a circuit which can fully exploit their potential I
consider there's no other device of this type and value which can make
such a contribution to sound quality.

The Technology:
Aspects of BG technology are protected under trademarks and also seven
patents, for Germany, Japan and the USA. First released in 1978 the
technology began with an advanced modification for the electrolyte of
the capacitor, namely the inclusion of finely divided graphite. Do this
incorrectly and the capacitor may become a short circuit!
Chemically neutral, the particle size is appropriate for the
exploitation of tunneling, an ultra fast and virtually lossless quantum
conduction mechanism far superior to the lazy ionic transport of a
standard electrolyte, this resembling a chemical battery. With this
dramatic conduction improvement, self noise and distortion is claimed to
be reduced by between 10 and 300 times depending on type [and cost!] and
the ESR, or unwanted internal impedance may be improved right across the
board, by between to 2 and 10 times, over the frequency range, and
especially over a wider range of temperature. Normal ionic conduction is
known to be rather temperature dependant and many audio electrolytic
capacitors sound and measure at their best at a respectably high
temperature such as 40 degrees centigrade, a known factor in the
sometimes encountered extended warm up of some hotter running power
amplifiers.

The top BG models are specified to have extraordinarily low distortion,
for example at 10kHz , 200mV drive, reading -148 dB for harmonics for
the NX non-polar series [eg 15V 1,500 uf] compared with an average of
-88dB of distortion for three commercial standard, types of equivalent
rating. I am not saying that -88dB of capacitor distortion in this test
is directly audible in any case but the figures do give a clue to the
special properties of the non-polar BG.
Special measuring equipment, itself upgraded with BG capacitors to
reduce inherent distortions, was required to define that noted
distortion improvement of some 50 dB, or 300 times.


Sound Quality

The test amplifier;
So comprehensive are the BG advantages at this point of exploration that
it's hard to know where to begin, Referenced to the benchmark of the
known best non BG capacitors [including Nichicons, Elna Cerafines etc],
the sound stage of the test amplifier after its treatment was remarkably
expanded in width and depth, yet its focus is still more solid. Images
now hung in space, set in floodlit pools of detailed acoustic ambience.
Subtleties which were previously just hinted at were now firmly and
expressively delineated. Every point in the audible frequency range was
clarified, sharpened, resolved. Rhythm and timing are redefined. Musical
notes appear to linger in time and space, of near perfect entity and
with breathtakingly natural instrumental and reverberant decay compared
with previous experience of that design.

Colorations which were previously blamed on circuit behavior and
specific active devices, if you like its technology makeup, were in this
unit now seen to be largely the fault of the previous capacitors and
these familiar errors were almost banished by the progressive and graded
installation of the Black Gates.

If these comments seem extreme I offer in my support the experiences of
several other listeners, some hard-bitten and difficult to impress. In
general they were shocked by the magnitude of the changes I could make
in the test system with these capacitors, and when the combination of BG
parts was felt to be in balance with this particular test unit, agreed
that the overall audio system improvement was not the usual 10 or 20 %
resulting from the insertion of a new and better review amplifier, but
rather a complete order of magnitude.

I also tried 4,700 35 V polars for the main reservoir of a high
performance CD player, and with substantial benefit, if not quite as
great in context as for the amplifier. Here I suspect that the
complexity and chosen technology of this player design had set a natural
limit to performance and that the BG additions had moved it closer to
that limit. For this player a gain of about 15 % in sound quality was
noted once it had all run-in, with a scattering of non-polars also used
for local decoupling. Despite the cost I valued even this project to be
well worth while.

In one simple test an inexpensive old standby CDP, a Marantz CD 60SE was
tried with the BG non-polar crossover capacitors as output couplers. It
had already been modified where the bi-polar Elna Cerafine output
capacitors had been replaced to advantage by 4u7, 400V ICW
polypropylenes. Known to be good capacitors it was a surprise to hear
how the player changed with just this substitution by BG. Overall the
sound lifted about 8% with the most notable feature being a more relaxed
quality, a more spacious sound stage with better flow and rhythm. I have
also heard them sound well in an audiophile loudspeaker application but
have not personally made direct comparisons in this higher current
application for which they are really intended. I did however try them
for power decoupling and they are clearly not as good as the appropriate
N or even polar types of comparable capacitance.

Tests have continued to the non-polar supply reservoirs, in this case
4,700u 35 V. For a single ended FET preamp with multiple pass
regulators, the gain in quality over the polar BG was substantial.
Compared with standard non BG types one again hears reductions in
coloration and grain, deeper silences, greater image depth and ambience.
Following the apocryphal BG story to the very end I added further
non-polars in the reverse orientation, the costly back-to-back
arrangement, and heard an additional gain about equivalent to that
already described. A month later and I can hear continuing incremental
improvements in clarity and focus.

Amongst these many winners there is one true star in the series. It is
also one of the cheapest and the smallest. It is the 0.1u 50V NX, [non-
polar]. This almost grain of rice sized electrolytic it seems can be put
almost anywhere, on IC supply pins, as audio speed ups, digital and
analogue. Chuck out the films and ceramics which would otherwise be
needed because they will audibly detract from the NX benefit. They seem
to be able to clean up the sound while maintaining a musical balance and
yet do not significantly interfere with the designers intention. They
are small enough to fit almost anywhere.

Comment

A word of caution is needed to temper my evident enthusiasm for these
capacitors.
I have found that the magnitude of audible improvement is dependant on
the equipment to which they are applied. Some circuits seem capable of
exploiting and revealing the gains which are possible. Others seem to
have a closed nature, and reach a natural limit beyond which it is more
difficult to make gains in sound quality. We listen through a long chain
of components and equipment and some of these set inherent barriers to
improvement.

Taken overall, and in circuits which are capable of exploiting the BG
advance, the gain in sheer sound quality is in many cases roughly and
simply proportional to the one-off amateur cost of the BG part. Even the
lowest cost capacitors in this technology are significantly rewarding
and should not be overlooked, while the top grade, non-polar components,
do, in my view change the rules for the design of high quality audio
equipment.

On Saturday, 9 September 2017 20:51:45 UTC+1, wrote:
On Fri, 08 Sep 2017 17:37:49 +0100, N_Cook wrote:
On 08/09/2017 08:05, wrote:

15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh



There always has been "bids from the chandelier" no different now its
internet "auctions"


This supposedly explains the purpose of Black Gate caps.
http://www.audionote.co.uk/articles/...te_story.shtml
(fact or hype???? Who knows).....

Here is that article:

The Black Gate Story
by Martin Colloms

First published Hi Fi News London July 2002. Author's copyright
reserved. No reprints or copies without permission. Unabridged Web
reproduction permitted for AN UK, 2003

Ticking away in the background, you might even say on the outer fringes
of audio design, is the question of how the actual audio building blocks
sound - the components themselves, not the made up equipment nor the
circuits. We are talking about resistors, amplifying and rectifying
devices, capacitors and wound components, transformers and inductors not
to mention connectors and wiring.

An electronics designer uses these parts to craft the circuitry and
layout of an audio product. Even now, in certain academic circles, the
existence of sound quality differences between technically well behaved
amplifiers is disputed. However, many others contend that not only do
the design and form of theoretical and practically expedited circuits
matter, but also the specific components or parts have their own sonic
characteristics.

Many such parts are customized through experience and unique build and
specification aspects known for many proprietary audio ranges. Companies
such as NAIM and Audio Note exemplify such attention to detail. Taking
one of many possible examples, substituting a given, selected power
transformer for one of nominally equivalent size, voltage and power,
will probably not generate an equal sound quality for the unit built
using it. In elevated audio circles, there is rather more to a
transformer spec than the standard figures for regulation and volt-
amperes.

It's some years since some reviews of component sound quality were
published in HFN- RR and there is understandably a limited following for
this material. Since then, in audiophile design circles, one branded
range of parts has been gaining a cult following for sheer sound
quality. If true, this is an important finding because the industry is
finding that the supply of traditional higher quality discrete audio
compatible parts is declining. This is due to the inexorable advance of
surface mount technology and larger, more complex integrated circuits.
The opportunity is diminishing for design creativity through the
considered selection of electronic parts in audio products. One aim of
this review is to alert designers of the possibilities and generate
broader international recognition of parts of real quality. We should
also help sustain the valuable endeavors of a dedicated band of audio
enthusiasts.

Black Gate is the name of the range of otherwise humble capacitors,
which has attracted our attention.
A Japanese inventor Kazuo Ishi patented a new way of making electrolytic
capacitors back in 1978. Rubycon, a noted Japanese company, makes a
large number of types under license.


I last looked at such a passive component when reporting on the
Moorcroft patent for the 'T' network capacitor for power supply
reservoirs, their successful use licensed in the UK to Aerovox. With
test power amplifier chassis in place it was possible to compare that
new three terminal design with a variety of conventional two terminal
devices [HFN-RR Aug '97].

For these 'T' network components the emphasis was on the internal
structure and current paths of the capacitor and a way was sought to
maximize the performance of the device by separation of charge and load
paths combined with a significant reduction in high frequency impedance.

Capacitor designers are painfully aware of the limitations of various
types, for example the odd and varied properties of the film dielectric
in the case of the plastic capacitors. Other aspects include the
conductive layer, is it an 'ethereal' vacuum deposition or perhaps one
with solid metal foil? For electrolytics, a wayward construction of
aluminum foil is used with a deeply etched oxide insulation, paper or
fibre separators, the whole bathed an electrically slow [slow ionic
charge movement] and complex conductive goo.
Generally the goo or electrolyte has a closely guarded composition and
is an ionic electrolyte, the standard way of achieving an electrical
barrier connection to the oxide layer on the foil. It's been known for a
long time that this electrolyte is imperfect and amongst other details
of construction it may well dominate the electrical performance
[distortion, bandwidth, loss factor] and in association, the sound
quality. For those not in the know, I here point out that the humble
electrolytic power supply reservoir can significantly contribute to
amplifier sound quality. Causing much vexation, such differences can't
generally be found even with the most searching measurements of the
complete amplifier itself.

It was again time to put some components to the test, and what better
choice than the ongoing developments in Black Gate technology.

Cherry-Picking
I can't hope to do justice to the Black Gate range as a totality so I've
cherry picked from the line, mainly dipping into the stores at UK agent
Audio Note for my selection. My task was complicated by early reports
that a significant running in period was required [several days] which
unfortunately turned out to be true. Certainly there were first
impressions available right away which gave helpful clues but at least a
day or two was needed to begin to properly gauge the result. For the
first series of tests I set up an open structure, a 'breadboard'
[actually a maple chopping board] mounted solid state amplifier of known
quality, to allow relatively easy substitution of the test capacitors in
a range of circuit positions. Later I also experimented with a trusted
audiophile CD player which it would not be fair to name.

I experimented with small, medium and large decoupling capacitors
[standard type 470u 50V, 470u 16V, 22u 50V, and 47uf 25V] as well as
standard power reservoirs [10,000uF 80V, 4,700u 35V and 220 + 220u 350V
'Heart of Muse'. Then came the NH type non polarized at 100uF 160V,
4,700 35V, singly and back to back, complemented by the NX type of
completely symmetrical non polars [470uF 16v, 22uF 50V, 20uF, 50V, 22u
6.3V, 0.47uF, 50V, and the delightful 0.1 uf 50V]. I also tried some of
the N and NX types in the ultimate back-to-back configuration. Finally I
checked out the bi-polar higher current crossover capacitors, [6.8u,
50V].

Certainly the Black Gate capacitors are very, very expensive and I was
consequently hoping for some significant advance over normal types.
However I couldn't possibly have predicted the magnitude of the sound
quality changes I heard. The changes were so dramatic that of necessity
I made multiple repeat comparisons over many days, and ultimately weeks
for this project.

Do please note that the use of these devices is not a 'fix all'
solution, you cannot just throw them at a design. Painstaking
comparisons showed that each type and value needs to match the
requirements of the specific circuit and circuit position as well as be
technically and sonically compatible with existing types of capacitor or
indeed other BGs when used.

While parallel combinations of Black Gates were generally foolproof, on
some occasions adding BGs in parallel to conventional capacitors could
actually make things worse. For example, even one of the best 100uF BG
'N' types when added to a fine sounding 10,00uF Great Supply Nichicon
reservoir didn't help matters, while by contrast a much smaller 0.47uF
NX really did lift this combination significantly when used as this
reservoir bypass.

With no significant measurable differences to speak of, judgments must
be made by ear. You need to know you equipment thoroughly, be used to
assessing small differences in sound quality and be open minded, expect
poorer as well as better results. If BG devices are going to help you,
will likely hear something right away, while the full benefit may not
develop until week of use has passed. In the case of the Nichicon and
100uF bypass tetst I can only speculate that the high frequency current
in the system must have been in some sort of disordered exchange, power
sharing above 10kHz or so, because while the sound became clearer, it
also became sharper and more aggressively forward in the treble.

With the 0.47u NX bypass such tonal changes were placed out of band
while the improvement was heard as improved yet subtle clarity, and a
purer sweeter upper treble; less noise and grain was now evident.


So strong was the BG effect, that existing selected quality 0.1uF
polypropylene de-couplers on the power amp supply lines had to be
removed from the circuit as they were found to audibly degrade the
performance advantage even of a 47uF 25V standard polarized BG used with
no other supplemental high frequency decoupling.

If the standard BG electrolytics were exceptional, and in my view
surprisingly so, and rated I my comparisons as typically 50% better for
sound quality than conventional good quality electrolytics, then the
'non polar' types were simply extraordinary.

Chosen by trial and error for the right value and circuit location, by
the end of the process the overall sound quality of my audio test
amplifier was transformed by the addition and/or substitution of BG
polars and non-polars. Moreover these capacitors as a whole proved just
as effective in many of the digital areas of an experimental D/A
converter as in its analogue sections, as they were for the test
amplifier. Here we are talking of clocks buffers and signal related
microprocessors

Cobwebs over the sound stage that you hadn't realized were there, were
now magically swept away. Substantial gains were also present in every
aspect of sound quality. The difference was so great that we were forced
backwards time and again to cross -check the non BG types and also to
refer back to other known reference grade audio types to make sure that
we were not fooling ourselves.


Running-In
When you are very familiar with how a product sounds, it is often
surprisingly easy to detect subtle changes between electronic components
used in it. This is even more obvious when the product is both very
short and simple, and very good.

I have previously reported on running-in phenomena with other
components, the most obvious being the moving coil loudspeaker.
Nevertheless amplifiers, CD players etc may be observed to run in over a
period of time, usually no less than several tens of hours. Sometimes
the rate of improvement will be slow, almost imperceptible, and several
weeks may pass before you actually realize the sound has got better.
Assessing these changes is made easier by a valued stock of long term,
well run-in, reference products.
A top quality amplifier, first auditioned from brand new may be
surprisingly flat and mushy sounding, almost average, but if of real
quality then rapid improvement may be heard over the first few hours of
use.

While in general Black Gates sound pretty good out of the box, the
potential performance ceiling is so high that the process of improvement
during running in can appear to go on for many tens of hours!


Take the 10,00uF 80V high current polar reservoir, performing very well
in the power supply of the test solid state amplifier First trials
showed it was certainly the best of this type in this test station,
compared with top grade alternatives including 'T network, Elna and
Great Supply. Nevertheless on a raw value basis these BGs did not at
first appear to be worth a quoted up to 6 times that of the other types.

And then they ran-in.......................

As the days went by the BG reservoirs gradually and inexorably built up
their lead to a point where their contribution to sound quality was so
great that a temporary return to those other well regarded reference
capacitors resulted in amazement, confusion and real disappointment.

Certainly this big BG reservoir is very expensive [about £100 each in
singles] but in a circuit which can fully exploit their potential I
consider there's no other device of this type and value which can make
such a contribution to sound quality.

The Technology:
Aspects of BG technology are protected under trademarks and also seven
patents, for Germany, Japan and the USA. First released in 1978 the
technology began with an advanced modification for the electrolyte of
the capacitor, namely the inclusion of finely divided graphite. Do this
incorrectly and the capacitor may become a short circuit!
Chemically neutral, the particle size is appropriate for the
exploitation of tunneling, an ultra fast and virtually lossless quantum
conduction mechanism far superior to the lazy ionic transport of a
standard electrolyte, this resembling a chemical battery. With this
dramatic conduction improvement, self noise and distortion is claimed to
be reduced by between 10 and 300 times depending on type [and cost!] and
the ESR, or unwanted internal impedance may be improved right across the
board, by between to 2 and 10 times, over the frequency range, and
especially over a wider range of temperature. Normal ionic conduction is
known to be rather temperature dependant and many audio electrolytic
capacitors sound and measure at their best at a respectably high
temperature such as 40 degrees centigrade, a known factor in the
sometimes encountered extended warm up of some hotter running power
amplifiers.

The top BG models are specified to have extraordinarily low distortion,
for example at 10kHz , 200mV drive, reading -148 dB for harmonics for
the NX non-polar series [eg 15V 1,500 uf] compared with an average of
-88dB of distortion for three commercial standard, types of equivalent
rating. I am not saying that -88dB of capacitor distortion in this test
is directly audible in any case but the figures do give a clue to the
special properties of the non-polar BG.
Special measuring equipment, itself upgraded with BG capacitors to
reduce inherent distortions, was required to define that noted
distortion improvement of some 50 dB, or 300 times.


Sound Quality

The test amplifier;
So comprehensive are the BG advantages at this point of exploration that
it's hard to know where to begin, Referenced to the benchmark of the
known best non BG capacitors [including Nichicons, Elna Cerafines etc],
the sound stage of the test amplifier after its treatment was remarkably
expanded in width and depth, yet its focus is still more solid. Images
now hung in space, set in floodlit pools of detailed acoustic ambience.
Subtleties which were previously just hinted at were now firmly and
expressively delineated. Every point in the audible frequency range was
clarified, sharpened, resolved. Rhythm and timing are redefined. Musical
notes appear to linger in time and space, of near perfect entity and
with breathtakingly natural instrumental and reverberant decay compared
with previous experience of that design.

Colorations which were previously blamed on circuit behavior and
specific active devices, if you like its technology makeup, were in this
unit now seen to be largely the fault of the previous capacitors and
these familiar errors were almost banished by the progressive and graded
installation of the Black Gates.

If these comments seem extreme I offer in my support the experiences of
several other listeners, some hard-bitten and difficult to impress. In
general they were shocked by the magnitude of the changes I could make
in the test system with these capacitors, and when the combination of BG
parts was felt to be in balance with this particular test unit, agreed
that the overall audio system improvement was not the usual 10 or 20 %
resulting from the insertion of a new and better review amplifier, but
rather a complete order of magnitude.

I also tried 4,700 35 V polars for the main reservoir of a high
performance CD player, and with substantial benefit, if not quite as
great in context as for the amplifier. Here I suspect that the
complexity and chosen technology of this player design had set a natural
limit to performance and that the BG additions had moved it closer to
that limit. For this player a gain of about 15 % in sound quality was
noted once it had all run-in, with a scattering of non-polars also used
for local decoupling. Despite the cost I valued even this project to be
well worth while.

In one simple test an inexpensive old standby CDP, a Marantz CD 60SE was
tried with the BG non-polar crossover capacitors as output couplers. It
had already been modified where the bi-polar Elna Cerafine output
capacitors had been replaced to advantage by 4u7, 400V ICW
polypropylenes. Known to be good capacitors it was a surprise to hear
how the player changed with just this substitution by BG. Overall the
sound lifted about 8% with the most notable feature being a more relaxed
quality, a more spacious sound stage with better flow and rhythm. I have
also heard them sound well in an audiophile loudspeaker application but
have not personally made direct comparisons in this higher current
application for which they are really intended. I did however try them
for power decoupling and they are clearly not as good as the appropriate
N or even polar types of comparable capacitance.

Tests have continued to the non-polar supply reservoirs, in this case
4,700u 35 V. For a single ended FET preamp with multiple pass
regulators, the gain in quality over the polar BG was substantial.
Compared with standard non BG types one again hears reductions in
coloration and grain, deeper silences, greater image depth and ambience.
Following the apocryphal BG story to the very end I added further
non-polars in the reverse orientation, the costly back-to-back
arrangement, and heard an additional gain about equivalent to that
already described. A month later and I can hear continuing incremental
improvements in clarity and focus.

Amongst these many winners there is one true star in the series. It is
also one of the cheapest and the smallest. It is the 0.1u 50V NX, [non-
polar]. This almost grain of rice sized electrolytic it seems can be put
almost anywhere, on IC supply pins, as audio speed ups, digital and
analogue. Chuck out the films and ceramics which would otherwise be
needed because they will audibly detract from the NX benefit. They seem
to be able to clean up the sound while maintaining a musical balance and
yet do not significantly interfere with the designers intention. They
are small enough to fit almost anywhere.

Comment

A word of caution is needed to temper my evident enthusiasm for these
capacitors.
I have found that the magnitude of audible improvement is dependant on
the equipment to which they are applied. Some circuits seem capable of
exploiting and revealing the gains which are possible. Others seem to
have a closed nature, and reach a natural limit beyond which it is more
difficult to make gains in sound quality. We listen through a long chain
of components and equipment and some of these set inherent barriers to
improvement.

Taken overall, and in circuits which are capable of exploiting the BG
advance, the gain in sheer sound quality is in many cases roughly and
simply proportional to the one-off amateur cost of the BG part. Even the
lowest cost capacitors in this technology are significantly rewarding
and should not be overlooked, while the top grade, non-polar components,
do, in my view change the rules for the design of high quality audio
equipment.

what a joke.

On Saturday, September 9, 2017 at 8:03:39 PM UTC-4, wrote:
On Saturday, 9 September 2017 20:51:45 UTC+1, wrote:
On Fri, 08 Sep 2017 17:37:49 +0100, N_Cook wrote:
On 08/09/2017 08:05, wrote:

15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh



There always has been "bids from the chandelier" no different now its
internet "auctions"


This supposedly explains the purpose of Black Gate caps.
http://www.audionote.co.uk/articles/...te_story.shtml
(fact or hype???? Who knows).....

Here is that article:

The Black Gate Story
by Martin Colloms

First published Hi Fi News London July 2002. Author's copyright
reserved. No reprints or copies without permission. Unabridged Web
reproduction permitted for AN UK, 2003

Ticking away in the background, you might even say on the outer fringes
of audio design, is the question of how the actual audio building blocks
sound - the components themselves, not the made up equipment nor the
circuits. We are talking about resistors, amplifying and rectifying
devices, capacitors and wound components, transformers and inductors not
to mention connectors and wiring.

An electronics designer uses these parts to craft the circuitry and
layout of an audio product. Even now, in certain academic circles, the
existence of sound quality differences between technically well behaved
amplifiers is disputed. However, many others contend that not only do
the design and form of theoretical and practically expedited circuits
matter, but also the specific components or parts have their own sonic
characteristics.

Many such parts are customized through experience and unique build and
specification aspects known for many proprietary audio ranges. Companies
such as NAIM and Audio Note exemplify such attention to detail. Taking
one of many possible examples, substituting a given, selected power
transformer for one of nominally equivalent size, voltage and power,
will probably not generate an equal sound quality for the unit built
using it. In elevated audio circles, there is rather more to a
transformer spec than the standard figures for regulation and volt-
amperes.

It's some years since some reviews of component sound quality were
published in HFN- RR and there is understandably a limited following for
this material. Since then, in audiophile design circles, one branded
range of parts has been gaining a cult following for sheer sound
quality. If true, this is an important finding because the industry is
finding that the supply of traditional higher quality discrete audio
compatible parts is declining. This is due to the inexorable advance of
surface mount technology and larger, more complex integrated circuits.
The opportunity is diminishing for design creativity through the
considered selection of electronic parts in audio products. One aim of
this review is to alert designers of the possibilities and generate
broader international recognition of parts of real quality. We should
also help sustain the valuable endeavors of a dedicated band of audio
enthusiasts.

Black Gate is the name of the range of otherwise humble capacitors,
which has attracted our attention.
A Japanese inventor Kazuo Ishi patented a new way of making electrolytic
capacitors back in 1978. Rubycon, a noted Japanese company, makes a
large number of types under license.


I last looked at such a passive component when reporting on the
Moorcroft patent for the 'T' network capacitor for power supply
reservoirs, their successful use licensed in the UK to Aerovox. With
test power amplifier chassis in place it was possible to compare that
new three terminal design with a variety of conventional two terminal
devices [HFN-RR Aug '97].

For these 'T' network components the emphasis was on the internal
structure and current paths of the capacitor and a way was sought to
maximize the performance of the device by separation of charge and load
paths combined with a significant reduction in high frequency impedance..

Capacitor designers are painfully aware of the limitations of various
types, for example the odd and varied properties of the film dielectric
in the case of the plastic capacitors. Other aspects include the
conductive layer, is it an 'ethereal' vacuum deposition or perhaps one
with solid metal foil? For electrolytics, a wayward construction of
aluminum foil is used with a deeply etched oxide insulation, paper or
fibre separators, the whole bathed an electrically slow [slow ionic
charge movement] and complex conductive goo.
Generally the goo or electrolyte has a closely guarded composition and
is an ionic electrolyte, the standard way of achieving an electrical
barrier connection to the oxide layer on the foil. It's been known for a
long time that this electrolyte is imperfect and amongst other details
of construction it may well dominate the electrical performance
[distortion, bandwidth, loss factor] and in association, the sound
quality. For those not in the know, I here point out that the humble
electrolytic power supply reservoir can significantly contribute to
amplifier sound quality. Causing much vexation, such differences can't
generally be found even with the most searching measurements of the
complete amplifier itself.

It was again time to put some components to the test, and what better
choice than the ongoing developments in Black Gate technology.

Cherry-Picking
I can't hope to do justice to the Black Gate range as a totality so I've
cherry picked from the line, mainly dipping into the stores at UK agent
Audio Note for my selection. My task was complicated by early reports
that a significant running in period was required [several days] which
unfortunately turned out to be true. Certainly there were first
impressions available right away which gave helpful clues but at least a
day or two was needed to begin to properly gauge the result. For the
first series of tests I set up an open structure, a 'breadboard'
[actually a maple chopping board] mounted solid state amplifier of known
quality, to allow relatively easy substitution of the test capacitors in
a range of circuit positions. Later I also experimented with a trusted
audiophile CD player which it would not be fair to name.

I experimented with small, medium and large decoupling capacitors
[standard type 470u 50V, 470u 16V, 22u 50V, and 47uf 25V] as well as
standard power reservoirs [10,000uF 80V, 4,700u 35V and 220 + 220u 350V
'Heart of Muse'. Then came the NH type non polarized at 100uF 160V,
4,700 35V, singly and back to back, complemented by the NX type of
completely symmetrical non polars [470uF 16v, 22uF 50V, 20uF, 50V, 22u
6.3V, 0.47uF, 50V, and the delightful 0.1 uf 50V]. I also tried some of
the N and NX types in the ultimate back-to-back configuration. Finally I
checked out the bi-polar higher current crossover capacitors, [6.8u,
50V].

Certainly the Black Gate capacitors are very, very expensive and I was
consequently hoping for some significant advance over normal types.
However I couldn't possibly have predicted the magnitude of the sound
quality changes I heard. The changes were so dramatic that of necessity
I made multiple repeat comparisons over many days, and ultimately weeks
for this project.

Do please note that the use of these devices is not a 'fix all'
solution, you cannot just throw them at a design. Painstaking
comparisons showed that each type and value needs to match the
requirements of the specific circuit and circuit position as well as be
technically and sonically compatible with existing types of capacitor or
indeed other BGs when used.

While parallel combinations of Black Gates were generally foolproof, on
some occasions adding BGs in parallel to conventional capacitors could
actually make things worse. For example, even one of the best 100uF BG
'N' types when added to a fine sounding 10,00uF Great Supply Nichicon
reservoir didn't help matters, while by contrast a much smaller 0.47uF
NX really did lift this combination significantly when used as this
reservoir bypass.

With no significant measurable differences to speak of, judgments must
be made by ear. You need to know you equipment thoroughly, be used to
assessing small differences in sound quality and be open minded, expect
poorer as well as better results. If BG devices are going to help you,
will likely hear something right away, while the full benefit may not
develop until week of use has passed. In the case of the Nichicon and
100uF bypass tetst I can only speculate that the high frequency current
in the system must have been in some sort of disordered exchange, power
sharing above 10kHz or so, because while the sound became clearer, it
also became sharper and more aggressively forward in the treble.

With the 0.47u NX bypass such tonal changes were placed out of band
while the improvement was heard as improved yet subtle clarity, and a
purer sweeter upper treble; less noise and grain was now evident.


So strong was the BG effect, that existing selected quality 0.1uF
polypropylene de-couplers on the power amp supply lines had to be
removed from the circuit as they were found to audibly degrade the
performance advantage even of a 47uF 25V standard polarized BG used with
no other supplemental high frequency decoupling.

If the standard BG electrolytics were exceptional, and in my view
surprisingly so, and rated I my comparisons as typically 50% better for
sound quality than conventional good quality electrolytics, then the
'non polar' types were simply extraordinary.

Chosen by trial and error for the right value and circuit location, by
the end of the process the overall sound quality of my audio test
amplifier was transformed by the addition and/or substitution of BG
polars and non-polars. Moreover these capacitors as a whole proved just
as effective in many of the digital areas of an experimental D/A
converter as in its analogue sections, as they were for the test
amplifier. Here we are talking of clocks buffers and signal related
microprocessors

Cobwebs over the sound stage that you hadn't realized were there, were
now magically swept away. Substantial gains were also present in every
aspect of sound quality. The difference was so great that we were forced
backwards time and again to cross -check the non BG types and also to
refer back to other known reference grade audio types to make sure that
we were not fooling ourselves.


Running-In
When you are very familiar with how a product sounds, it is often
surprisingly easy to detect subtle changes between electronic components
used in it. This is even more obvious when the product is both very
short and simple, and very good.

I have previously reported on running-in phenomena with other
components, the most obvious being the moving coil loudspeaker.
Nevertheless amplifiers, CD players etc may be observed to run in over a
period of time, usually no less than several tens of hours. Sometimes
the rate of improvement will be slow, almost imperceptible, and several
weeks may pass before you actually realize the sound has got better.
Assessing these changes is made easier by a valued stock of long term,
well run-in, reference products.
A top quality amplifier, first auditioned from brand new may be
surprisingly flat and mushy sounding, almost average, but if of real
quality then rapid improvement may be heard over the first few hours of
use.

While in general Black Gates sound pretty good out of the box, the
potential performance ceiling is so high that the process of improvement
during running in can appear to go on for many tens of hours!


Take the 10,00uF 80V high current polar reservoir, performing very well
in the power supply of the test solid state amplifier First trials
showed it was certainly the best of this type in this test station,
compared with top grade alternatives including 'T network, Elna and
Great Supply. Nevertheless on a raw value basis these BGs did not at
first appear to be worth a quoted up to 6 times that of the other types..

And then they ran-in.......................

As the days went by the BG reservoirs gradually and inexorably built up
their lead to a point where their contribution to sound quality was so
great that a temporary return to those other well regarded reference
capacitors resulted in amazement, confusion and real disappointment.

Certainly this big BG reservoir is very expensive [about £100 each in
singles] but in a circuit which can fully exploit their potential I
consider there's no other device of this type and value which can make
such a contribution to sound quality.

The Technology:
Aspects of BG technology are protected under trademarks and also seven
patents, for Germany, Japan and the USA. First released in 1978 the
technology began with an advanced modification for the electrolyte of
the capacitor, namely the inclusion of finely divided graphite. Do this
incorrectly and the capacitor may become a short circuit!
Chemically neutral, the particle size is appropriate for the
exploitation of tunneling, an ultra fast and virtually lossless quantum
conduction mechanism far superior to the lazy ionic transport of a
standard electrolyte, this resembling a chemical battery. With this
dramatic conduction improvement, self noise and distortion is claimed to
be reduced by between 10 and 300 times depending on type [and cost!] and
the ESR, or unwanted internal impedance may be improved right across the
board, by between to 2 and 10 times, over the frequency range, and
especially over a wider range of temperature. Normal ionic conduction is
known to be rather temperature dependant and many audio electrolytic
capacitors sound and measure at their best at a respectably high
temperature such as 40 degrees centigrade, a known factor in the
sometimes encountered extended warm up of some hotter running power
amplifiers.

The top BG models are specified to have extraordinarily low distortion,
for example at 10kHz , 200mV drive, reading -148 dB for harmonics for
the NX non-polar series [eg 15V 1,500 uf] compared with an average of
-88dB of distortion for three commercial standard, types of equivalent
rating. I am not saying that -88dB of capacitor distortion in this test
is directly audible in any case but the figures do give a clue to the
special properties of the non-polar BG.
Special measuring equipment, itself upgraded with BG capacitors to
reduce inherent distortions, was required to define that noted
distortion improvement of some 50 dB, or 300 times.


Sound Quality

The test amplifier;
So comprehensive are the BG advantages at this point of exploration that
it's hard to know where to begin, Referenced to the benchmark of the
known best non BG capacitors [including Nichicons, Elna Cerafines etc],
the sound stage of the test amplifier after its treatment was remarkably
expanded in width and depth, yet its focus is still more solid. Images
now hung in space, set in floodlit pools of detailed acoustic ambience.
Subtleties which were previously just hinted at were now firmly and
expressively delineated. Every point in the audible frequency range was
clarified, sharpened, resolved. Rhythm and timing are redefined. Musical
notes appear to linger in time and space, of near perfect entity and
with breathtakingly natural instrumental and reverberant decay compared
with previous experience of that design.

Colorations which were previously blamed on circuit behavior and
specific active devices, if you like its technology makeup, were in this
unit now seen to be largely the fault of the previous capacitors and
these familiar errors were almost banished by the progressive and graded
installation of the Black Gates.

If these comments seem extreme I offer in my support the experiences of
several other listeners, some hard-bitten and difficult to impress. In
general they were shocked by the magnitude of the changes I could make
in the test system with these capacitors, and when the combination of BG
parts was felt to be in balance with this particular test unit, agreed
that the overall audio system improvement was not the usual 10 or 20 %
resulting from the insertion of a new and better review amplifier, but
rather a complete order of magnitude.

I also tried 4,700 35 V polars for the main reservoir of a high
performance CD player, and with substantial benefit, if not quite as
great in context as for the amplifier. Here I suspect that the
complexity and chosen technology of this player design had set a natural
limit to performance and that the BG additions had moved it closer to
that limit. For this player a gain of about 15 % in sound quality was
noted once it had all run-in, with a scattering of non-polars also used
for local decoupling. Despite the cost I valued even this project to be
well worth while.

In one simple test an inexpensive old standby CDP, a Marantz CD 60SE was
tried with the BG non-polar crossover capacitors as output couplers. It
had already been modified where the bi-polar Elna Cerafine output
capacitors had been replaced to advantage by 4u7, 400V ICW
polypropylenes. Known to be good capacitors it was a surprise to hear
how the player changed with just this substitution by BG. Overall the
sound lifted about 8% with the most notable feature being a more relaxed
quality, a more spacious sound stage with better flow and rhythm. I have
also heard them sound well in an audiophile loudspeaker application but
have not personally made direct comparisons in this higher current
application for which they are really intended. I did however try them
for power decoupling and they are clearly not as good as the appropriate
N or even polar types of comparable capacitance.

Tests have continued to the non-polar supply reservoirs, in this case
4,700u 35 V. For a single ended FET preamp with multiple pass
regulators, the gain in quality over the polar BG was substantial.
Compared with standard non BG types one again hears reductions in
coloration and grain, deeper silences, greater image depth and ambience..
Following the apocryphal BG story to the very end I added further
non-polars in the reverse orientation, the costly back-to-back
arrangement, and heard an additional gain about equivalent to that
already described. A month later and I can hear continuing incremental
improvements in clarity and focus.

Amongst these many winners there is one true star in the series. It is
also one of the cheapest and the smallest. It is the 0.1u 50V NX, [non-
polar]. This almost grain of rice sized electrolytic it seems can be put
almost anywhere, on IC supply pins, as audio speed ups, digital and
analogue. Chuck out the films and ceramics which would otherwise be
needed because they will audibly detract from the NX benefit. They seem
to be able to clean up the sound while maintaining a musical balance and
yet do not significantly interfere with the designers intention. They
are small enough to fit almost anywhere.

Comment

A word of caution is needed to temper my evident enthusiasm for these
capacitors.
I have found that the magnitude of audible improvement is dependant on
the equipment to which they are applied. Some circuits seem capable of
exploiting and revealing the gains which are possible. Others seem to
have a closed nature, and reach a natural limit beyond which it is more
difficult to make gains in sound quality. We listen through a long chain
of components and equipment and some of these set inherent barriers to
improvement.

Taken overall, and in circuits which are capable of exploiting the BG
advance, the gain in sheer sound quality is in many cases roughly and
simply proportional to the one-off amateur cost of the BG part. Even the
lowest cost capacitors in this technology are significantly rewarding
and should not be overlooked, while the top grade, non-polar components,
do, in my view change the rules for the design of high quality audio
equipment.

what a joke.

You're being kind... That article is pure, unadulterated bull**** - suitable for composting and amending garden soil. These caps sound better because fools pay so much for them than they're worth that they "hear" the superiority of them. For the rest of us who demand substance over hype, they have no value.

My hearing no longer has the response for discerning fine changes in audio, but show me a double blind test that even gives 51 - 49% advantage to these magic caps and I'll be on board.

Hey, does Black Gate sell beans?

wrote:

15 NOS Rubycon 100uf, 160v Electron Transfer Black Gate NH Capacitors,
are up to $2141.00 bid (plus shipping), on ebay, with 3+ days left to
go.

I know these are supposed to be the best caps, but are these caps made
out of gold? Why would anyone pay that much for them? (and the bidding
is not over yet).

http://tinyurl.com/y955cgq6


If thats out of your price range, you can always buy one VINTAGE NOS
(untested) Sprague .022 uf 200v 20% Bumble Bee Capacitor for $39
(shipping included), as a Buy it Now.

http://tinyurl.com/y9pxm6xh

Some of the people into high end audio systems are nuts.

They will pay over $ 100 for the 6 foot or so of wire that goes from the
equipment to the 120 volt wall socket. It is suspose to be some special
type of oxygen free copper. They do not take into account that there is
probably 25 to 100 feet of regular wire going to the breaker box and all
the other junk wire from there to the power company.

If they will pay $100 for 6ft of cord, they can buy a whole mile of it
for a mere $88,000. If the power plant is 25 miles away, for a mere
$2,200,000, they can run a dedicated cord all the way to the generator
at the power plant.

I've always wondered about all of the different places that isolated grounding and ground wires finally end up.