Gram Input
 

Hi All,

Back in the day when I were too poor to born (I were knitted by the WRVS and dropped throuht letterbox when me mam werent looking).

My €œHiFi€� Consisted of a busted Dansette clone with no amp or transformer (we used my train set transformer and a dropper resister). And the Gram input of a valve radio (we had a similar setup downstairs which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

Only the records sounded fine to me, which makes me wonder if RIAA isnt that important??

Or maybe it did (and 78s also used RIAA??)

TIA

Chris

Gram Input
 

On Monday, 27 July 2020 08:57:29 UTC+1, wrote:
Anyway, I used to play 45s and later LPs on this.
I imagine the radio was probably just post war.
Would this have had RIAA Compensation circuitry built in?

RIAA became standard about 1954 on LPs

Accoustic 78s were made without equalisation; electrical 78s had varying equalisation curves depending on company (and year of production)

http://www.shellac.org/wams/wequal.html
and
http://midimagic.sgc-hosting.com/mixphono.htm

RIAA seems to be about average, if you have nothing else.

"the majority of all 78 rpm records can be equalised within a 2dB of the nominal (or alleged) curves claimed, using 4 low and 5 high frequency ranges - including flat and true RIAA for both."

Multi standard equaliser circuit

https://sound-au.com/project91.htm

Now it can be done in software
https://www.tracertek.com/cms-display/newway.html

Owain

Gram Input
 

On 27/07/2020 08:57, wrote:
Hi All,

Back in the day when I were too poor to born (I were knitted by the WRVS and dropped throuht letterbox when me mam werent looking).

My €œHiFi€� Consisted of a busted Dansette clone with no amp or transformer (we used my train set transformer and a dropper resister). And the Gram input of a valve radio (we had a similar setup downstairs which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Only the records sounded fine to me, which makes me wonder if RIAA isnt that important??

Or maybe it did (and 78s also used RIAA??)

No, but they still had an amplitude/deflection
relationship.

TIA

Chris



--
I would rather have questions that cannot be answered...
....than to have answers that cannot be questioned

Richard Feynman

Gram Input
 

On 27/07/2020 10:28, The Natural Philosopher wrote:
On 27/07/2020 08:57, wrote:
Hi All,

Back in the day when I were too poor to born (I were knitted by the
WRVS and dropped throuht letterbox when me mam werent looking).

My €œHiFi€� Consisted of a busted Dansette clone with no amp or
transformer (we used my train set transformer and a dropper resister).
And the Gram input of a valve radio (we had a similar setup downstairs
which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Just what I was going to say. Will have been "crystal" in those days. I
guess electromagnetic pickups might have been used in studio equipment.

Gram Input
 

On Monday, 27 July 2020 12:09:17 UTC+1, newshound wrote:
On 27/07/2020 10:28, The Natural Philosopher wrote:
On 27/07/2020 08:57, wrote:

Hi All,

Back in the day when I were too poor to born (I were knitted by the
WRVS and dropped throuht letterbox when me mam werent looking).

My €œHiFi€� Consisted of a busted Dansette clone with no amp or
transformer (we used my train set transformer and a dropper resister).
And the Gram input of a valve radio (we had a similar setup downstairs
which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Just what I was going to say. Will have been "crystal" in those days.

+1. To call such kit hifi is of course fantasy. The sound quality of kit like that was normally hideous. 1970s lofis were a revelation, suddenly one could make out the words.


NT

Gram Input
 

In article ,
wrote:
My ”HiFi• Consisted of a busted Dansette clone with no amp or
transformer (we used my train set transformer and a dropper resister).
And the Gram input of a valve radio (we had a similar setup downstairs
which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

Only the records sounded fine to me, which makes me wonder if RIAA isn‘t
that important??

Certain types of gross mismatch between a valve input and cartridge went
some way to giving something like the RIAA curve. Good enough for a very
lo-fi result

--
*Do paediatricians play miniature golf on Wednesdays?

Dave Plowman London SW
To e-mail, change noise into sound.

Gram Input
 

Thanks all,

I did put rabbits ears around HiFi 11::^*))

Perhaps the setup resulted in reduced bass.

Ive always found I like my music more toppy than most

Perhaps this is why I developed this taste.

And despite being mono, it sounded as good as my friends ITT stereo (Dont think it had Tint Control!).

Of course I hated it as it wasnt new or cool!

Gram Input
 

It was a crystal pick up, Hi level and these were as far as I know almost
flat.

Brian

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wrote in message
...
Hi All,

Back in the day when I were too poor to born (I were knitted by the WRVS and
dropped throuh't letterbox when me mam weren't looking).

My "HiFi" Consisted of a busted Dansette clone with no amp or transformer
(we used my train set transformer and a dropper resister). And the Gram
input of a valve radio (we had a similar setup downstairs which my father
had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

Only the records sounded fine to me, which makes me wonder if RIAA isn't
that important??

Or maybe it did (and 78s also used RIAA??)

TIA

Chris

Gram Input
 

Yes but wind up gramophones sounded quite nice the big ones anyway with
bass.

There were lots of eqs about, look at Decca FFRR, which to my ears sounded
screechy.

I actually think these days that some CDs seem to be being made with an odd
EQ setting as well. I've heard talk of this on high end players being
detected and compensated for giving some enhancement of the graininess some
recordings can exhibit. Sounds a bit like Russ Andrews territory to me, I
prefer the theory that the person doing the final balance was going deaf.
Brian

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Note this Signature is meaningless.!
wrote in message
...
On Monday, 27 July 2020 08:57:29 UTC+1, wrote:
Anyway, I used to play 45s and later LPs on this.
I imagine the radio was probably just post war.
Would this have had RIAA Compensation circuitry built in?

RIAA became standard about 1954 on LPs

Accoustic 78s were made without equalisation; electrical 78s had varying
equalisation curves depending on company (and year of production)

http://www.shellac.org/wams/wequal.html
and
http://midimagic.sgc-hosting.com/mixphono.htm

RIAA seems to be about average, if you have nothing else.

"the majority of all 78 rpm records can be equalised within a 2dB of the
nominal (or alleged) curves claimed, using 4 low and 5 high frequency
ranges - including flat and true RIAA for both."

Multi standard equaliser circuit

https://sound-au.com/project91.htm

Now it can be done in software
https://www.tracertek.com/cms-display/newway.html

Owain

Gram Input
 

Have you ever looked at cylinders?
A lot of those used vertical modulation which made the groove shallow
sometimes and they relied on the thread pitch of the screw to keep it in the
right place. I did once see on the bbc stand at a show, an electrified
cylinder player sporting a goldring cartridge, but according to the bloke
there, the foil ones played OK, but not the pure wax ones as they were
drying out and cracking and there was a project to play them all with a
laser before they fell to bits. I wonder if in days to come we will start
having issues with CDs and other optical media?
Brian

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Note this Signature is meaningless.!
"The Natural Philosopher" wrote in message
...
On 27/07/2020 08:57, wrote:
Hi All,

Back in the day when I were too poor to born (I were knitted by the WRVS
and dropped throuh't letterbox when me mam weren't looking).

My "HiFi" Consisted of a busted Dansette clone with no amp or transformer
(we used my train set transformer and a dropper resister). And the Gram
input of a valve radio (we had a similar setup downstairs which my father
had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Only the records sounded fine to me, which makes me wonder if RIAA isn't
that important??

Or maybe it did (and 78s also used RIAA??)

No, but they still had an amplitude/deflection
relationship.

TIA

Chris



--
I would rather have questions that cannot be answered...
...than to have answers that cannot be questioned

Richard Feynman

Gram Input
 

Yes my Rogers Cadet has two plugs based on an octal system, and one is for
ceramic the other magnetic which has the riaa. I used a Decca Deram. That
was actually pretty amazing for a crystal pick up in its day. One thing is
of course when a mixer never had enough line inputs, ceramic cart settings
on a pick up input could be used if one was careful about matching and
levels.
Brian

--
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The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"newshound" wrote in message
o.uk...
On 27/07/2020 10:28, The Natural Philosopher wrote:
On 27/07/2020 08:57, wrote:
Hi All,

Back in the day when I were too poor to born (I were knitted by the WRVS
and dropped throuh't letterbox when me mam weren't looking).

My "HiFi" Consisted of a busted Dansette clone with no amp or
transformer (we used my train set transformer and a dropper resister).
And the Gram input of a valve radio (we had a similar setup downstairs
which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Just what I was going to say. Will have been "crystal" in those days. I
guess electromagnetic pickups might have been used in studio equipment.

Gram Input
 

Yes well, much like early guitar amps or stuff of that ilk. I have to say
though that valve distortion was more tolerable than the early transistor
amps with crossover distortion due to the heat affecting where the linear
curve started and stopped.

About the best of the Germanium ones for sound was the z12 by Sinclair. It
could sound quite good but obviously on a scope at the crossover point,
though tiny, there ewes a bit of a signal there that varied with heat.
Much better later on when silicon devices came along, and finally power
fets.
Brian

--
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The Sofa of Brian Gaff...

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Note this Signature is meaningless.!
wrote in message
...
On Monday, 27 July 2020 12:09:17 UTC+1, newshound wrote:
On 27/07/2020 10:28, The Natural Philosopher wrote:
On 27/07/2020 08:57, wrote:

Hi All,

Back in the day when I were too poor to born (I were knitted by the
WRVS and dropped throuh't letterbox when me mam weren't looking).

My "HiFi" Consisted of a busted Dansette clone with no amp or
transformer (we used my train set transformer and a dropper resister).
And the Gram input of a valve radio (we had a similar setup downstairs
which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Just what I was going to say. Will have been "crystal" in those days.

+1. To call such kit hifi is of course fantasy. The sound quality of kit
like that was normally hideous. 1970s lofis were a revelation, suddenly one
could make out the words.


NT

Gram Input
 

On 27/07/2020 16:39, Brian Gaff (Sofa) wrote:
It was a crystal pick up, Hi level and these were as far as I know almost
flat.

Brian


I used to buy crystal cartridges to provide a trigger signals for
seismographs. You taped them to a sledge-hammer shaft to provide some
volts when you hit your 'seismic source' target. These were many times
cheaper than the seismograph manufacturer's devices which we found were
the same except that they were potted in a short length of Al channel.

Indeed, a lot of them ended up almost flat.

--
Cheers
Clive

Gram Input
 

When they first cut disks, amplitude of signal = amplitude on disk. A
crystal or ceramic cartridge reproduced that with no equalisation. Whgen
moving coal and moving magnet came a long, voltage was proportional to
speed, so they need lots of bass boost - at 6dB per octave.For some
reason they then decided to put a bit less on the disk and a bit more in
the amp, and the infamous RIAA curve was borne.

--
Renewable energy: Expensive solutions that don't work to a problem that
doesn't exist instituted by self legalising protection rackets that
don't protect, masquerading as public servants who don't serve the public.

Gram Input
 

This €œHiFi€� replaced my LoFi, an old gramophone on which the spring had gone. I had to spin the 78s with my finger on the label.

My dad later bought a Leak Stereo 70 (which I rebuilt with Silicon transistors after the magic smoke escaped) and a pair of Goodmans Magnum SLs.

These days I have a boat anchor Denon A/V receiver and a pair of Wharfdale Linton III XPs

Gram Input
 

On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:
Yes my Rogers Cadet has two plugs based on an octal system, and one is for
ceramic the other magnetic which has the riaa. I used a Decca Deram. That
was actually pretty amazing for a crystal pick up in its day. One thing is
of course when a mixer never had enough line inputs, ceramic cart settings
on a pick up input could be used if one was careful about matching and
levels.
Brian

I had a Decca Deram long ago - it was magnetic.

Gram Input
 

On Monday, 27 July 2020 16:58:22 UTC+1, Brian Gaff (Sofa) wrote:
tabbypurr wrote in message
...
On Monday, 27 July 2020 12:09:17 UTC+1, newshound wrote:
On 27/07/2020 10:28, The Natural Philosopher wrote:
On 27/07/2020 08:57, wrote:

Hi All,

Back in the day when I were too poor to born (I were knitted by the
WRVS and dropped throuh't letterbox when me mam weren't looking).

My "HiFi" Consisted of a busted Dansette clone with no amp or
transformer (we used my train set transformer and a dropper resister).
And the Gram input of a valve radio (we had a similar setup downstairs
which my father had built into an old sideboard to make a Radiogram)

Anyway, I used to play 45s and later LPs on this.

I imagine the radio was probably just post war.

Would this have had RIAA Compensation circuitry built in?

If it used s ceramic or crystal pickup voltage was proportional to
deflection, not to velocity, so it would not have needed one.



Just what I was going to say. Will have been "crystal" in those days.

+1. To call such kit hifi is of course fantasy. The sound quality of kit
like that was normally hideous. 1970s lofis were a revelation, suddenly one
could make out the words.


NT

Yes well, much like early guitar amps or stuff of that ilk.

Not a bit like it. I've worked on both.

I have to say
though that valve distortion was more tolerable than the early transistor
amps with crossover distortion due to the heat affecting where the linear
curve started and stopped.

About the best of the Germanium ones for sound was the z12 by Sinclair. It
could sound quite good but obviously on a scope at the crossover point,
though tiny, there ewes a bit of a signal there that varied with heat.
Much better later on when silicon devices came along, and finally power
fets.
Brian

Silicon are worse performers at crossover due to a much sharper cutoff & higher Vb. More nfb & preamp speed are required. Of course silicon is also way faster. You can get an ok sounding little amp with nothing more than an LM324 driving 1 watt geraniums, no added bias: try that with silicons if you want to learn the difference.


NT

Gram Input
 

On Monday, 27 July 2020 17:49:50 UTC+1, The Natural Philosopher wrote:

When they first cut disks, amplitude of signal = amplitude on disk. A
crystal or ceramic cartridge reproduced that with no equalisation. Whgen
moving coal and moving magnet came a long, voltage was proportional to
speed, so they need lots of bass boost - at 6dB per octave.For some
reason they then decided to put a bit less on the disk and a bit more in
the amp, and the infamous RIAA curve was borne.

The RIAA curve was a tweak to keep bass excursion on the disc down & improve hiss/scratch reduction. It increased rumble, but decks by then were good enough on that point.

I dunno what you mean by moving coal. I've never heard of a carbon phono pickup. Perhaps someone somewhere tried to make a kids record player than way once - I'd bet they gave up.


NT

Gram Input
 

On 27/07/2020 20:47, wrote:
On Monday, 27 July 2020 17:49:50 UTC+1, The Natural Philosopher wrote:

When they first cut disks, amplitude of signal = amplitude on disk. A
crystal or ceramic cartridge reproduced that with no equalisation. Whgen
moving coal and moving magnet came a long, voltage was proportional to
speed, so they need lots of bass boost - at 6dB per octave.For some
reason they then decided to put a bit less on the disk and a bit more in
the amp, and the infamous RIAA curve was borne.

The RIAA curve was a tweak to keep bass excursion on the disc down & improve hiss/scratch reduction. It increased rumble, but decks by then were good enough on that point.

I dunno what you mean by moving coal. I've never heard of a carbon phono pickup. Perhaps someone somewhere tried to make a kids record player than way once - I'd bet they gave up.


NT

https://www.youtube.com/watch?v=us-PnNyKhCY

--
Cheers
Clive

Gram Input
 

On 27/07/2020 21:44, Clive Arthur wrote:
On 27/07/2020 20:47, wrote:
On Monday, 27 July 2020 17:49:50 UTC+1, The Natural PhilosopherÂ* wrote:

When they first cut disks, amplitude of signal = amplitude on disk. A
crystal or ceramic cartridge reproduced that with no equalisation. Whgen
moving coal and moving magnet came a long, voltage was proportional to
speed, so they need lots of bass boost - at 6dB per octave.For some
reason they then decided to put a bit less on the disk and a bit more in
the amp, and the infamous RIAA curve was borne.

The RIAA curve was a tweak to keep bass excursion on the disc down &
improve hiss/scratch reduction. It increased rumble, but decks by then
were good enough on that point.

I dunno what you mean by moving coal.
Moving coil..


https://www.youtube.com/watch?v=us-PnNyKhCY



--
Climate Change: Socialism wearing a lab coat.

Gram Input
 

In article ,
writes
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:
Yes my Rogers Cadet has two plugs based on an octal system, and one is for
ceramic the other magnetic which has the riaa. I used a Decca Deram. That
was actually pretty amazing for a crystal pick up in its day. One thing is
of course when a mixer never had enough line inputs, ceramic cart settings
on a pick up input could be used if one was careful about matching and
levels.
Brian

I had a Decca Deram long ago - it was magnetic.
I don't think so; DEcca ceRAMic
--
Chris Holford

Gram Input
 

In article ,
Chris Holford wrote:
In article ,
writes
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:
Yes my Rogers Cadet has two plugs based on an octal system, and one is for
ceramic the other magnetic which has the riaa. I used a Decca Deram. That
was actually pretty amazing for a crystal pick up in its day. One thing is
of course when a mixer never had enough line inputs, ceramic cart settings
on a pick up input could be used if one was careful about matching and
levels.
Brian

I had a Decca Deram long ago - it was magnetic.
I don't think so; DEcca ceRAMic

I had a Decca ffss - that was magnetic

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle

Gram Input
 

On 27/07/2020 22:39, Chris Holford wrote:
In article ,
writes
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:
Yes my Rogers Cadet has two plugs based on an octal system, and one is for
ceramic the other magnetic which has the riaa. I used a Decca Deram. That
was actually pretty amazing for a crystal pick up in its day. One thing is
of course when a mixer never had enough line inputs, ceramic cart settings
on a pick up input could be used if one was careful about matching and
levels.
Brian

I had a Decca Deram long ago - it was magnetic.
I don't think so; DEcca ceRAMic

Yep. I had a decca moving coil though.



--
"The most difficult subjects can be explained to the most slow witted
man if he has not formed any idea of them already; but the simplest
thing cannot be made clear to the most intelligent man if he is firmly
persuaded that he knows already, without a shadow of doubt, what is laid
before him."

- Leo Tolstoy

Gram Input
 

In article ,
wrote:
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:
Yes my Rogers Cadet has two plugs based on an octal system, and one is
for ceramic the other magnetic which has the riaa. I used a Decca
Deram. That was actually pretty amazing for a crystal pick up in its
day. One thing is of course when a mixer never had enough line inputs,
ceramic cart settings on a pick up input could be used if one was
careful about matching and levels. Brian

I had a Decca Deram long ago - it was magnetic.

The Decca Deram cartridge is ceramic. Advertised as the first true Hi-Fi
ceramic.

--
*A cubicle is just a padded cell without a door.

Dave Plowman London SW
To e-mail, change noise into sound.

Gram Input
 

On Tue, 28 Jul 2020 11:22:26 +0100, Dave Plowman (News) wrote:

In article ,
wrote:
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:
Yes my Rogers Cadet has two plugs based on an octal system, and one
is for ceramic the other magnetic which has the riaa. I used a Decca
Deram. That was actually pretty amazing for a crystal pick up in its
day. One thing is of course when a mixer never had enough line
inputs,
ceramic cart settings on a pick up input could be used if one was
careful about matching and levels. Brian

I had a Decca Deram long ago - it was magnetic.

The Decca Deram cartridge is ceramic. Advertised as the first true Hi-Fi
ceramic.

Indeed. I used to sell them when I worked in a hi-fi shop!



--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

Gram Input
 

On 27/07/2020 17:58, wrote:
This €œHiFi€� replaced my LoFi, an old gramophone on which the spring had gone. I had to spin the 78s with my finger on the label.

My dad later bought a Leak Stereo 70 (which I rebuilt with Silicon transistors after the magic smoke escaped) and a pair of Goodmans Magnum SLs.

These days I have a boat anchor Denon A/V receiver and a pair of Wharfdale Linton III XPs


Bet you didn't pay £1000 for the speakers though :-)

https://www.hifichoice.com/content/wharfedale-linton

Gram Input
 

On 28/07/2020 14:39, Bob Eager wrote:
On Tue, 28 Jul 2020 11:22:26 +0100, Dave Plowman (News) wrote:
In article ,
wrote:
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:

Yes my Rogers Cadet has two plugs based on an octal system, and one
is for ceramic the other magnetic which has the riaa. I used a Decca
Deram. That was actually pretty amazing for a crystal pick up in its
day. One thing is of course when a mixer never had enough line
inputs,
ceramic cart settings on a pick up input could be used if one was
careful about matching and levels. Brian

I had a Decca Deram long ago - it was magnetic.

The Decca Deram cartridge is ceramic. Advertised as the first true Hi-Fi
ceramic.

Indeed. I used to sell them when I worked in a hi-fi shop!

Did anyone come in asking for a "gramophone"?

--
Max Demian

Gram Input
 

On Tue, 28 Jul 2020 17:07:18 +0100, Max Demian wrote:

On 28/07/2020 14:39, Bob Eager wrote:
On Tue, 28 Jul 2020 11:22:26 +0100, Dave Plowman (News) wrote:
In article ,
wrote:
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:

Yes my Rogers Cadet has two plugs based on an octal system, and one
is for ceramic the other magnetic which has the riaa. I used a Decca
Deram. That was actually pretty amazing for a crystal pick up in its
day. One thing is of course when a mixer never had enough line
inputs,
ceramic cart settings on a pick up input could be used if one was
careful about matching and levels. Brian

I had a Decca Deram long ago - it was magnetic.

The Decca Deram cartridge is ceramic. Advertised as the first true
Hi-Fi ceramic.

Indeed. I used to sell them when I worked in a hi-fi shop!

Did anyone come in asking for a "gramophone"?

Oh yes. Particularly in the Worthing shop. They closed that in the end as
it was all pensioner time-wasters.

Further on the cartridge; I'm sure that there were non-ceramic Decca
cartridges too. But as far as I'm aware, the big white monstrosity was
ceramic.



--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

Gram Input
 

Err, no.

The Dennin and the Wharfdales were second hand gifts.

The wharfdales needed new tweeters. Lovering (Ooh Matron!) Brothers suggested Piezo Horns were the thing, and they sound damn fine to me 30 years later.

Gram Input
 

On 28/07/2020 17:07, Max Demian wrote:
On 28/07/2020 14:39, Bob Eager wrote:

Indeed. I used to sell them when I worked in a hi-fi shop!

Did anyone come in asking for a "gramophone"?


does it have Dolby?

--
Adrian C

Gram Input
 

On Tuesday, 28 July 2020 14:39:57 UTC+1, Bob Eager wrote:
On Tue, 28 Jul 2020 11:22:26 +0100, Dave Plowman (News) wrote:
In article ,
tabbypurr wrote:
On Monday, 27 July 2020 16:53:29 UTC+1, Brian Gaff (Sofa) wrote:

Yes my Rogers Cadet has two plugs based on an octal system, and one
is for ceramic the other magnetic which has the riaa. I used a Decca
Deram. That was actually pretty amazing for a crystal pick up in its
day. One thing is of course when a mixer never had enough line
inputs,
ceramic cart settings on a pick up input could be used if one was
careful about matching and levels. Brian

I had a Decca Deram long ago - it was magnetic.

The Decca Deram cartridge is ceramic. Advertised as the first true Hi-Fi
ceramic.

Indeed. I used to sell them when I worked in a hi-fi shop!

A quick google shows what I had was not a Deram.


NT

Gram Input
 

On 27/07/2020 16:58, Brian Gaff (Sofa) wrote:
Yes well, much like early guitar amps or stuff of that ilk. I have to say
though that valve distortion was more tolerable than the early transistor
amps with crossover distortion due to the heat affecting where the linear
curve started and stopped.

About the best of the Germanium ones for sound was the z12 by Sinclair. It
could sound quite good but obviously on a scope at the crossover point,
though tiny, there ewes a bit of a signal there that varied with heat.
Much better later on when silicon devices came along, and finally power
fets.
Brian

Ah the Z12. With Sinclair's famous guarantee that "If you ever break it
we will fix it for 50p. I blew up several of them by managing to run
them with no speaker connected. You didn't even have to be providing a
signal at the time.

Gram Input
 

On 28/07/2020 23:09, wrote:
Err, no.

The Dennin and the Wharfdales were second hand gifts.

The wharfdales needed new tweeters. Lovering (Ooh Matron!) Brothers suggested Piezo Horns were the thing, and they sound damn fine to me 30 years later.


Was that the same Lovering Brothers next-but-one to the Shop on the
Bridge in Kings Road, Reading? If so, it was where I bought my crystal
cartridges. If not, I didn't realise it was a chain.

Grumpy old bloke at first, but fascinated as to why I didn't need styli too.

--
Cheers
Clive

Gram Input
 

On 29/07/2020 10:20, newshound wrote:
On 27/07/2020 16:58, Brian Gaff (Sofa) wrote:
Yes well, much like early guitar amps or stuff of that ilk. I have to say
though that valve distortion was more tolerable than the early transistor
amps with crossover distortion due to the heat affecting where the linear
curve started and stopped.

About the best of the Germanium ones for sound was the z12 by
Sinclair. It
could sound quite good but obviously on a scopeÂ* at the crossover point,
though tiny, there ewes a bit of a signal there that varied with heat.
Â* Much better later on when silicon devices came along, and finally power
fets.
Â* Brian

Ah the Z12. With Sinclair's famous guarantee that "If you ever break it
we will fix it for 50p. I blew up several of them by managing to run
them with no speaker connected. You didn't even have to be providing a
signal at the time.

Oh dear. The z12. We put one one a scope at school around 1968. One half
of the sine waveform was so obviously bigger than the other it was a
complete joke. The friend who bought it was almost in tears 'its
supposed to be less than xxx% distortion'... 'well it isn't', I said.

It remains the worst audio amplifier I have ever put instrumentation on,
bar none., And impressive achievement even for the ginger **** who
marketed it.


--
"What do you think about Gay Marriage?"
"I don't."
"Don't what?"
"Think about Gay Marriage."

Gram Input
 

No Dolby on the turntable 11::^*))

But it does have Woofers Grandad!

Gram Input
 

In article ,
Bob Eager wrote:
Further on the cartridge; I'm sure that there were non-ceramic Decca
cartridges too. But as far as I'm aware, the big white monstrosity was
ceramic.

Decca was first known for the FFSS range. Designed by a BBC type, and
based on a miniaturised EMI 78 rpm mono unit. Being a BBC employee, he had
to offer it to the BBC first. They decided it too delicate for pro use, so
he sold it to Decca.

--
*Why were the Indians here first? They had reservations.*

Dave Plowman London SW
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