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n cook February 27th 07 10:14 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
I often come across corroded or dirty contacts so the amp stops functioning.
If the spriginess of the metal has failed then replace obviously, but what
about the more usual case where it is only corrosion/airborn contaminaion,
not really necessitating pulling the amp apart to replace them. Any ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across the
contact with fine copper wire, soldered in place, "shorting" the switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/




Eeyore February 27th 07 10:18 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops functioning.


With what make of jack ?

It varies hugely. I've spent ages on the issue from a design angle myself.

Graham


n cook February 27th 07 10:48 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
Eeyore wrote in message
...


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops

functioning.

With what make of jack ?

It varies hugely. I've spent ages on the issue from a design angle

myself.

Graham


I'm not going to desolder any of the present problematic ones but I would
say they are the same as Cliff UK, No 3 type.
I've seen the airborn grime problem on gold-flashed contacts though, adding
extra closure force would not a bad thing, I would have thought for this
grime/corrosion problem and more reliable active, in use, in/out contacts
via the plugs.
On that line, including on the design/manufacturing side, I was thinking.
1/ socket with no plug in so switch closed
2/ cover the switch area with a piece of plumbers PTFE tape. (if new
sockets, then wrapping the PTFE right around each of the contact areas would
keep most of the grime out, it should stretch easy enough to allow entry of
plugs, and soldering temperatures will not affect the PTFE)
3/ a section of cut down neoprene cordage, diameter the size of the slot or
slightly bigger, pushed into the "slot" in the plastic housing above.
4/ Push down the rubber with a small PTFE covered rod of some sort while
filling the top with hot-melt glue, extract the rod when cold
Unfortunately grime can still enter through the plug hole but if much
reduced air flow out of the back of the socket then perhaps less grime going
into the plug hole
5/ Another idea "flap valves" on the external holes of the sockets

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



Dave Curtis February 27th 07 11:46 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Tue, 27 Feb 2007 10:14:00 -0000, "N Cook"
wrote:

I often come across corroded or dirty contacts so the amp stops functioning.
If the spriginess of the metal has failed then replace obviously, but what
about the more usual case where it is only corrosion/airborn contaminaion,
not really necessitating pulling the amp apart to replace them. Any ideas
how to deal with.
1/ solvent clean the contact/s


Yes.

2/ abraid the contacts with file


By all means NO. Don't file, sand or otherwise remove metal from
switch contacts. That will make matters worse. If I can get in the
right spot, I'll "polish" them with a dollar bill (open the contacts,
put the bill between the contacts, close the contacts and work the
bill around or pull it out a few times.)

3/ coat the contacts with something


Caig D5 usually does the trick.

3/ add compressible material , glued in place, over the spring section to
add closure force


Nah. If it's worn out, replace it.

4/ if the sockets are never used for effects etc , bridge tightly across the
contact with fine copper wire, soldered in place, "shorting" the switch - if
plugged into at some future point then the wire will break


You're better off just using a short patch cord from Out to In.


-Dave

Lord Valve February 27th 07 01:28 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops functioning.
If the spriginess of the metal has failed then replace obviously, but what
about the more usual case where it is only corrosion/airborn contaminaion,
not really necessitating pulling the amp apart to replace them. Any ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across the
contact with fine copper wire, soldered in place, "shorting" the switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/




This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they cost
less than two bucks each, and last virtually forever. Here's a dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World Tour) *
* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin' Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean



Eeyore February 27th 07 01:44 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Lord Valve wrote:

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.


This does the sum store of ZERO for the switching contacts on either a Cliff or
Re-an jack.

I can't really see how it'll help on Switchcraft pattern jack either.

Graham


Lord Valve February 27th 07 02:01 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Eeyore wrote:

Lord Valve wrote:

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.


This does the sum store of ZERO for the switching contacts on either a Cliff or
Re-an jack.

I can't really see how it'll help on Switchcraft pattern jack either.

Graham



You are an ass and an ignoramus.

Field experience trumps your opinion, ******. Get stuffed.

LV





Stephen Cowell February 27th 07 02:29 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

"N Cook" wrote in message
...
I often come across corroded or dirty contacts so the amp stops
functioning.


Put a U-jumper. Normalled contacts have no place
in a high-vibration environment anyway... unless they
are doing non-critical (input shorting) work.
__
Steve
..



n cook February 27th 07 02:45 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
Lord Valve wrote in message
...


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops

functioning.
If the spriginess of the metal has failed then replace obviously, but

what
about the more usual case where it is only corrosion/airborn

contaminaion,
not really necessitating pulling the amp apart to replace them. Any

ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section

to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across

the
contact with fine copper wire, soldered in place, "shorting" the

switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/




This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they cost
less than two bucks each, and last virtually forever. Here's a dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World Tour)

*
* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin' Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean



The trouble is calling them contacts is mutton dressed as lamb.
The static part of the "contact" is just the cut end of metal strip that is
touched by the moving part of the switch, likely to score any burnishing
tool.



RonSonic February 27th 07 03:28 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Tue, 27 Feb 2007 10:14:00 -0000, "N Cook" wrote:

I often come across corroded or dirty contacts so the amp stops functioning.
If the spriginess of the metal has failed then replace obviously, but what
about the more usual case where it is only corrosion/airborn contaminaion,
not really necessitating pulling the amp apart to replace them. Any ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across the
contact with fine copper wire, soldered in place, "shorting" the switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance



Clean the ones that respond and replace the ones that don't. The worst part
about this is that you will have to test clean to know if it works. This is not
nearly so big a deal as you make of it.

Burnishing works. I can't see why you object to the concept.

The Cliff type jacks are not usually problems and really don't require this
overcomplication you're bringing to the subject. Annual execise by the user and
the occasional professional cleaning keep them in shape. You can complain about
the aesthetics, but they work fine and have for decades.

Ron

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry


Eeyore February 27th 07 08:47 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Lord Valve wrote:

Eeyore wrote:
Lord Valve wrote:

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.


This does the sum store of ZERO for the switching contacts on either a Cliff or
Re-an jack.

I can't really see how it'll help on Switchcraft pattern jack either.


You are an ass and an ignoramus.

Field experience trumps your opinion, ******. Get stuffed.


Well LV............

You're *WRONG* ! And I can assure that I have vastly more experience on this subject.

The only solution is to REPLACE the defective jack socket. Any problem will simply
'come back' after supposed 'treatment'.

So there.

Graham


TD Madden February 27th 07 09:54 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
N Cook wrote:

Lord Valve wrote in message
...


N Cook wrote:


I often come across corroded or dirty contacts so the amp stops


functioning.

If the spriginess of the metal has failed then replace obviously, but


what

about the more usual case where it is only corrosion/airborn


contaminaion,

not really necessitating pulling the amp apart to replace them. Any


ideas

how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section


to

add closure force
4/ if the sockets are never used for effects etc , bridge tightly across


the

contact with fine copper wire, soldered in place, "shorting" the


switch - if

plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/




This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they cost
less than two bucks each, and last virtually forever. Here's a dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World Tour)


*

* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin' Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean




The trouble is calling them contacts is mutton dressed as lamb.
The static part of the "contact" is just the cut end of metal strip that is
touched by the moving part of the switch, likely to score any burnishing
tool.


unless it works.

Arfa Daily February 28th 07 09:41 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

"Eeyore" wrote in message
...


Lord Valve wrote:

Eeyore wrote:
Lord Valve wrote:

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right
size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This does the sum store of ZERO for the switching contacts on either a
Cliff or
Re-an jack.

I can't really see how it'll help on Switchcraft pattern jack either.


You are an ass and an ignoramus.

Field experience trumps your opinion, ******. Get stuffed.


Well LV............

You're *WRONG* ! And I can assure that I have vastly more experience on
this subject.

The only solution is to REPLACE the defective jack socket. Any problem
will simply
'come back' after supposed 'treatment'.

So there.

Graham

I'm sure that I'm probably opening myself up to a bunch of abuse here, but I
have to say that in over 35 years of repairing group amps, the number of
occasions that I've found the effects send and return socket switches
causing a problem of intermittent output, has been so small that I would
consider it negligible as a problem, and certainly not one that would
warrant doing things like wrapping the sockets up in plumber's tape or
shorting across them with breakable wires.

I would absolutely refute that replacement is the *only* way to deal with
any such bad contacts, and that any sockets treated with a contact
burnishing tool and then with a protective contact oil, will bounce any
quicker than if a replacement socket had been fitted.

There is absolutely no reason at all that if an oxide layer is chemically or
physically removed from a contact surface, without removing any material
from the actual contact material, or if airborne contamination is removed
from a non-reactive precious metal plated contact surface, that those
contacts are not restored to the exact same condition that they were when
they left the factory. You could buy a *new* socket that had sat in a bin in
a supplier's warehouse for two years, and had plenty of time for the
contacts to start oxidising, so fitting that may not in fact be any better
than correctly cleaning the already-fitted socket.

Over the last few months, Mr Cook has voiced some very odd concerns on here,
and seems to have had more than his fair share of - how shall we say -
unusual ? - problems. If my working day was filled with such concerns all
the time, I would never make any money, and would be considering it time to
give up, I feel ...

Arfa



n cook February 28th 07 11:17 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
Arfa Daily wrote in message
...

"Eeyore" wrote in message
...


Lord Valve wrote:

Eeyore wrote:
Lord Valve wrote:

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right
size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks.

The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This does the sum store of ZERO for the switching contacts on either

a
Cliff or
Re-an jack.

I can't really see how it'll help on Switchcraft pattern jack either.

You are an ass and an ignoramus.

Field experience trumps your opinion, ******. Get stuffed.


Well LV............

You're *WRONG* ! And I can assure that I have vastly more experience on
this subject.

The only solution is to REPLACE the defective jack socket. Any problem
will simply
'come back' after supposed 'treatment'.

So there.

Graham

I'm sure that I'm probably opening myself up to a bunch of abuse here, but

I
have to say that in over 35 years of repairing group amps, the number of
occasions that I've found the effects send and return socket switches
causing a problem of intermittent output, has been so small that I would
consider it negligible as a problem, and certainly not one that would
warrant doing things like wrapping the sockets up in plumber's tape or
shorting across them with breakable wires.

I would absolutely refute that replacement is the *only* way to deal with
any such bad contacts, and that any sockets treated with a contact
burnishing tool and then with a protective contact oil, will bounce any
quicker than if a replacement socket had been fitted.

There is absolutely no reason at all that if an oxide layer is chemically

or
physically removed from a contact surface, without removing any material
from the actual contact material, or if airborne contamination is removed
from a non-reactive precious metal plated contact surface, that those
contacts are not restored to the exact same condition that they were when
they left the factory. You could buy a *new* socket that had sat in a bin

in
a supplier's warehouse for two years, and had plenty of time for the
contacts to start oxidising, so fitting that may not in fact be any better
than correctly cleaning the already-fitted socket.

Over the last few months, Mr Cook has voiced some very odd concerns on

here,
and seems to have had more than his fair share of - how shall we say -
unusual ? - problems. If my working day was filled with such concerns all
the time, I would never make any money, and would be considering it time

to
give up, I feel ...

Arfa



Going by the rusty cabinet screws on a lot of the kit I see they must be
stored in sheds or garages.
Anyway this example I "abraided" with a cut segment of nylon cable tie and
"Brasso" metal polish, cleaned off by a strip of card dampened with meths.
Drilled a hole through the board either side of the switch and tied some
silicone rubber cordage around the switch passing through a piece of plastic
barrel that seated neatly in the top of the flexing metal strip.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



Lord Valve February 28th 07 01:31 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


N Cook wrote:

Lord Valve wrote in message
...


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops

functioning.
If the spriginess of the metal has failed then replace obviously, but

what
about the more usual case where it is only corrosion/airborn

contaminaion,
not really necessitating pulling the amp apart to replace them. Any

ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section

to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across

the
contact with fine copper wire, soldered in place, "shorting" the

switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/




This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they cost
less than two bucks each, and last virtually forever. Here's a dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World Tour)

*
* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin' Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean



The trouble is calling them contacts is mutton dressed as lamb.
The static part of the "contact" is just the cut end of metal strip that is
touched by the moving part of the switch, likely to score any burnishing
tool.


Slick, I've been servicing this stuff for forty years. 'Nuff said.

LV





Lord Valve February 28th 07 01:36 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Eeyore wrote:

Lord Valve wrote:

Eeyore wrote:
Lord Valve wrote:

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This does the sum store of ZERO for the switching contacts on either a Cliff or
Re-an jack.

I can't really see how it'll help on Switchcraft pattern jack either.


You are an ass and an ignoramus.

Field experience trumps your opinion, ******. Get stuffed.


Well LV............

You're *WRONG* ! And I can assure that I have vastly more experience on this subject.

The only solution is to REPLACE the defective jack socket. Any problem will simply
'come back' after supposed 'treatment'.

So there.

Graham


You're wrong.

I supposed you're used to that, though.


LV





Lord Valve February 28th 07 01:42 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


N Cook wrote:


Anyway this example I "abraided" with a cut segment of nylon cable tie and
"Brasso" metal polish, cleaned off by a strip of card dampened with meths.
Drilled a hole through the board either side of the switch and tied some
silicone rubber cordage around the switch passing through a piece of plastic
barrel that seated neatly in the top of the flexing metal strip.




Holy ****!

Never mind...



Lord Valve
ROFLMBFAO


RonSonic February 28th 07 03:02 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Wed, 28 Feb 2007 13:31:16 GMT, Lord Valve wrote:



N Cook wrote:

Lord Valve wrote in message
...


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops

functioning.
If the spriginess of the metal has failed then replace obviously, but

what
about the more usual case where it is only corrosion/airborn

contaminaion,
not really necessitating pulling the amp apart to replace them. Any

ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section

to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across

the
contact with fine copper wire, soldered in place, "shorting" the

switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they cost
less than two bucks each, and last virtually forever. Here's a dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World Tour)

*
* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin' Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean



The trouble is calling them contacts is mutton dressed as lamb.
The static part of the "contact" is just the cut end of metal strip that is
touched by the moving part of the switch, likely to score any burnishing
tool.


Slick, I've been servicing this stuff for forty years. 'Nuff said.

LV


Yeah, you may have been servicing it, but you don't have the valuable experience
of making your own solder and flux to an ancient family recipe, drawing your own
wire or rebuilding amps using parts from a 1920 Indian Chief.

Ron

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry


Lord Valve February 28th 07 03:51 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


RonSonic wrote:

On Wed, 28 Feb 2007 13:31:16 GMT, Lord Valve wrote:



N Cook wrote:

Lord Valve wrote in message
...


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops
functioning.
If the spriginess of the metal has failed then replace obviously, but
what
about the more usual case where it is only corrosion/airborn
contaminaion,
not really necessitating pulling the amp apart to replace them. Any
ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring section
to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly across
the
contact with fine copper wire, soldered in place, "shorting" the
switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they cost
less than two bucks each, and last virtually forever. Here's a dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World Tour)
*
* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin' Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean



The trouble is calling them contacts is mutton dressed as lamb.
The static part of the "contact" is just the cut end of metal strip that is
touched by the moving part of the switch, likely to score any burnishing
tool.


Slick, I've been servicing this stuff for forty years. 'Nuff said.

LV


Yeah, you may have been servicing it, but you don't have the valuable experience
of making your own solder and flux to an ancient family recipe, drawing your own
wire or rebuilding amps using parts from a 1920 Indian Chief.


Sez you.

Ron

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry


You pluralized a word with an apostrophe. That's a hanging offense where I come
from, pardner.

LV






Arfa Daily February 28th 07 05:00 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

"Lord Valve" wrote in message
...


RonSonic wrote:

On Wed, 28 Feb 2007 13:31:16 GMT, Lord Valve
wrote:



N Cook wrote:

Lord Valve wrote in message
...


N Cook wrote:

I often come across corroded or dirty contacts so the amp stops
functioning.
If the spriginess of the metal has failed then replace obviously,
but
what
about the more usual case where it is only corrosion/airborn
contaminaion,
not really necessitating pulling the amp apart to replace them.
Any
ideas
how to deal with.
1/ solvent clean the contact/s
2/ abraid the contacts with file
3/ coat the contacts with something
3/ add compressible material , glued in place, over the spring
section
to
add closure force
4/ if the sockets are never used for effects etc , bridge tightly
across
the
contact with fine copper wire, soldered in place, "shorting" the
switch - if
plugged into at some future point then the wire will break
5/ any other ideas to reduce the possibility of re-occurance

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



This thread is gettin' funny.

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool. This particular one is exactly the right
size
for cleaning Cliff's (and Re-An and other Cliff's-clone) jacks. The
tool is flexible, and can be bent into any necessary shape to
reach the jacks' switch contacts. You insert a plug into the jack
to open the contacts, stick the burnisher between them, and
remove the plug, allowing the contacts to close on the burnisher.
You then saw the burnisher back and forth a few times to remove
the crud. THIS WILL NOT DAMAGE THE CONTACT SURFACES,
regardless of what you might see posted here by anyone else.
Finsh the job off with a shot of Caig D-5 or D-100 between the
contacts.

This GC tool is from the heyday of the telco era, and was designed
to service the phone system when it was largely electro-mechanical.
There is a larger size - the GC 9338 - which is ideal for cleaning
Switchcraft 12A and other American-style open-frame jacks found
on older Fender amps. Best thing about these tools is that they
cost
less than two bucks each, and last virtually forever. Here's a
dopesheet:

http://ralphselectronics.biz/images/GC-9337.jpg

If you can't find them locally, I sell 'em - and so do a lot
of other distributors. They're an essential part of any
PRO amp tech's kit.

Lord Valve
Expert

VISIT MY WEBSITE: http://www.nebsnow.com/LordValve
I specialize in top quality HAND SELECTED NOS and
current-production vacuum tubes for guitar and
bass amps. Good prices, fast service.
Authorized dealer for QSC amps, Sovtek/Electro-Harmonix,
Behringer, Hammond-Suzuki, Leslie, Rolls, Weber VST, etc.


- Partial Client List -
* Derek Trucks (Allman Brothers Band/Derek Trucks Band/Clapton World
Tour)
*
* Meatloaf * Catherine Wheel * Yo La Tengo * Let's Go Bowling *
* Kofi Burbridge (DTB) * Tod Smallie (DTB) * Susan Tedeschi *
* Roy Pritts (former head, Audio Engineering Society) *
* Rob Hyckys (guitarist for Commander Cody) * Waky Amps *
* Jamie McLean (guitarist for the Dirty Dozen Brass Band) *
* John Pierce (bassist for Huey Lewis and the News) *
* Rob Eaton (guitarist for Dark Star Orchestra) *
* Detroit Frank DuMont (guitarist, Frank DuMont and the Drivin'
Wheels) *
* Coco Montoya * Clint Black * Bill McKay * Mojo Watson * Dick
Dale *
* Fleetwood Mac * Tyrin Benoit * Eugene Fodor * Dale Bruning *
* Komet Amplification * Dr. Z * Maven Peal * Blockhead Amps *
* Jim Kelley * Balls Amplification * Roccaforte Amplifiers *
* Gerhart Amplification * Aiken Amplification * Germino
Amplification *
* Lots More *

NBS Electronics, 230 South Broadway, Denver, CO 80209-1510
Phone orders/tech support after 1:30 PM Denver time at 303-778-1156

- Our 27h Year -

VISA - MASTERCARD - PAYPAL - DISCOVER

"It ain't braggin', if ya can do it." - Dizzy Dean



The trouble is calling them contacts is mutton dressed as lamb.
The static part of the "contact" is just the cut end of metal strip
that is
touched by the moving part of the switch, likely to score any
burnishing
tool.

Slick, I've been servicing this stuff for forty years. 'Nuff said.

LV


Yeah, you may have been servicing it, but you don't have the valuable
experience
of making your own solder and flux to an ancient family recipe, drawing
your own
wire or rebuilding amps using parts from a 1920 Indian Chief.


Sez you.

Ron

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry


You pluralized a word with an apostrophe. That's a hanging offense where
I come
from, pardner.

LV

Well said. There was a letter in my Sunday paper just last week about
exactly that ...

Arfa



Homer J Simpson February 28th 07 06:45 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

"Lord Valve" wrote in message
...

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool.


For cheap contact filing get a diamond nail file from the dollar store.
Power off first.

--
..

--
..
..
..
..
..
..
..
..

--



boardjunkie February 28th 07 07:32 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Feb 28, 4:41 am, "Arfa Daily" wrote:
I'm sure that I'm probably opening myself up to a bunch of abuse here, but I
have to say that in over 35 years of repairing group amps, the number of
occasions that I've found the effects send and return socket switches
causing a problem of intermittent output, has been so small that I would
consider it negligible as a problem


I see it all the time. You have to remember that lots of this stuff
spends it life in smoky bars. The "bar ick" gets into the n.c. jack
contacts and can cause intermittent connection. As long as the jack is
in good mechanical condition, they can be cleaned and put back into
service. I just cut card stock into thin strips, coat it with good
contact cleaner and drag it through the contacts till all the ick is
gone. Then treat with contact preserver. Works great.

For oxidised jacks I'll pull them out and toss 'em in tarn-x followed
by contact preserver.


Lord Valve February 28th 07 07:34 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Homer J Simpson wrote:

"Lord Valve" wrote in message
...

OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool.


For cheap contact filing get a diamond nail file from the dollar store.
Power off first.


Too abrasive, and *way* too large for the application.

At less than $2 each, there is no excuse not to have the
correct tool. Intermittent FX loop normalling contacts
are fairly common, especially in guitar amps used
in nightclubs, which are at the mercy of ungodly
amounts of cigarette smoke, theatrical fog, perfume,
dust kicked up by dancers, etc. Additionally, mixing desk
channel and subgroup insert jacks also suffer from dirty
normalling contacts; carrying a few TRS plugs with the
tips wired to the rings is a good idea - but a temporary
fix. Eventually, someone will need to clean them, using
the method I outlined earlier on this thread.

LV





boardjunkie February 28th 07 07:37 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Feb 28, 4:41 am, "Arfa Daily" wrote:
I'm sure that I'm probably opening myself up to a bunch of abuse here, but I
have to say that in over 35 years of repairing group amps, the number of
occasions that I've found the effects send and return socket switches
causing a problem of intermittent output, has been so small that I would
consider it negligible as a problem


I see it all the time. You have to remember that lots of this stuff
spends it life in smoky bars. The "bar ick" gets into the n.c. jack
contacts and can cause intermittent connection. As long as the jack is
in good mechanical condition, they can be cleaned and put back into
service. I just cut card stock into thin strips, coat it with good
contact cleaner and drag it through the contacts till all the ick is
gone. Then treat with contact preserver. Works great.

For oxidised jacks I'll pull them out and toss 'em in tarn-x followed
by contact preserver.


Lord Valve February 28th 07 07:43 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Arfa Daily wrote:

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry


You pluralized a word with an apostrophe. That's a hanging offense where
I come
from, pardner.

LV

Well said. There was a letter in my Sunday paper just last week about
exactly that ...


Don't get me started.

These clods INSIST on spelling the short form of
"microphone" as "mic," giving rise to such ungainly
and downright goofy looking constructions as
"micing," "miced," etc. These same miscreants
also pronounce "Alnico" as "al-KNEE-co," which,
as anyone who is willing to spend half a minute
checking a dictionary can easily ascertain, is
completely wrong. Stupid sounding, to boot.

ARRRRGH!

Lord Valve
Grammarian/Lexicographer (amateur)


boardjunkie February 28th 07 08:49 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Feb 28, 2:43 pm, Lord Valve wrote:
Don't get me started.

These same miscreants
also pronounce "Alnico" as "al-KNEE-co," which,
as anyone who is willing to spend half a minute
checking a dictionary can easily ascertain, is
completely wrong. Stupid sounding, to boot.

ARRRRGH!

Lord Valve
Grammarian/Lexicographer (amateur)


Gawd I hate that. ALuminum, NIckel, CObalt. There are no knee-highs
or Grape Nehi involved in the production of alnico.



TD Madden February 28th 07 09:17 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
Homer J Simpson wrote:
"Lord Valve" wrote in message
...


OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool.



For cheap contact filing get a diamond nail file from the dollar store.
Power off first.

dollar-bill will work in a pinch, too..

DGDevin February 28th 07 09:19 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
"Lord Valve" wrote in message
...

Yeah, you may have been servicing it, but you don't have the valuable
experience
of making your own solder and flux to an ancient family recipe, drawing
your own
wire or rebuilding amps using parts from a 1920 Indian Chief.


Sez you.


Damn straight, if there's one thing LV is good at it's pulling his own wire.



Eeyore February 28th 07 09:36 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


Arfa Daily wrote:

"Lord Valve" wrote in message
RonSonic wrote:

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry


You pluralized a word with an apostrophe. That's a hanging offense where
I come from, pardner.

Well said. There was a letter in my Sunday paper just last week about
exactly that ...


The one that always gets me is "fish and chip's" !

Graham


Lord Valve March 1st 07 12:14 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 


DGDevin wrote:

"Lord Valve" wrote in message
...

Yeah, you may have been servicing it, but you don't have the valuable
experience
of making your own solder and flux to an ancient family recipe, drawing
your own
wire or rebuilding amps using parts from a 1920 Indian Chief.


Sez you.


Damn straight, if there's one thing LV is good at it's pulling his own wire.



Yours has obviously been pulled. Again.

Here's your sign.


LV


J.P. March 1st 07 12:56 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Wed, 28 Feb 2007 19:43:41 GMT, Lord Valve
wrote:



Arfa Daily wrote:

Effect pedal demo's up at http://www.soundclick.com/ronsonicpedalry

You pluralized a word with an apostrophe. That's a hanging offense where
I come
from, pardner.

LV

Well said. There was a letter in my Sunday paper just last week about
exactly that ...


Don't get me started.

These clods INSIST on spelling the short form of
"microphone" as "mic," giving rise to such ungainly
and downright goofy looking constructions as
"micing," "miced," etc. These same miscreants
also pronounce "Alnico" as "al-KNEE-co," which,
as anyone who is willing to spend half a minute
checking a dictionary can easily ascertain, is
completely wrong. Stupid sounding, to boot.

ARRRRGH!

Lord Valve
Grammarian/Lexicographer (amateur)

Mice'd - what happens when you put you amp in the barn for too long a
spell...

[email protected] March 1st 07 12:57 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Feb 28, 3:49 pm, "boardjunkie" wrote:
On Feb 28, 2:43 pm, Lord Valve wrote:

Don't get me started.


These same miscreants
also pronounce "Alnico" as "al-KNEE-co," which,
as anyone who is willing to spend half a minute
checking a dictionary can easily ascertain, is
completely wrong. Stupid sounding, to boot.


ARRRRGH!


Lord Valve
Grammarian/Lexicographer (amateur)


Gawd I hate that. ALuminum, NIckel, CObalt. There are no knee-highs
or Grape Nehi involved in the production of alnico.


Hmmm, how about you explain the pronunciation of the word 'vagina'?

Rhymes with 'Virginia'?

;-0


Arfa Daily March 1st 07 10:31 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

wrote in message
oups.com...
On Feb 28, 3:49 pm, "boardjunkie" wrote:
On Feb 28, 2:43 pm, Lord Valve wrote:

Don't get me started.


These same miscreants
also pronounce "Alnico" as "al-KNEE-co," which,
as anyone who is willing to spend half a minute
checking a dictionary can easily ascertain, is
completely wrong. Stupid sounding, to boot.


ARRRRGH!


Lord Valve
Grammarian/Lexicographer (amateur)


Gawd I hate that. ALuminum, NIckel, CObalt. There are no knee-highs
or Grape Nehi involved in the production of alnico.


Hmmm, how about you explain the pronunciation of the word 'vagina'?

Rhymes with 'Virginia'?

;-0

'Vagina' is a real word, 'alnico' isn't, being an acronym formed from the
first syllables of three real words. Although the pronunciation of an
acronym doesn't always follow any rule relating to how the letter or
combination of letters were pronounced in the original word from which
it / they were taken, where that original pronunciation does fit in well,
it's usually retained. Hence radar is pronounced ray - dar rather than
radd - ar, and alnico is pronounced al - nick - co.

For what it's worth, I actually think that the correct shortened form of
"microphone" should be "mic", but that this is a case where an apostrophe,
which does after all indicate missing letters from a fully spelled-out word,
can be used to good effect such that the words you cite become "mic'd" and
"mic'ing". The two words probably don't actually exist in reality, and are
just creations that indicate an action to those in the business that
understand their implied meaning, so it's hard to apply any 'proper' rules
to producing an abreviated form of them.

Arfa ( also a lover of the correct use of the language ... )



JW March 1st 07 11:34 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Wed, 28 Feb 2007 17:00:43 GMT "Arfa Daily"
wrote in Message id: :


"Lord Valve" wrote in message
...


[...]

You pluralized a word with an apostrophe. That's a hanging offense where
I come
from, pardner.

LV

Well said. There was a letter in my Sunday paper just last week about
exactly that ...


Anything in there about not trimming posts? ;)

Dave Curtis March 1st 07 11:41 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
On Thu, 01 Mar 2007 10:31:50 GMT, "Arfa Daily"
wrote:

'Vagina' is a real word, 'alnico' isn't,


Webster disagrees:
http://209.161.33.50/dictionary/alnico


Mic is there too;
http://209.161.33.50/dictionary/mic

-Dave

Ron(UK) March 1st 07 11:55 AM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
N Cook wrote:


Going by the rusty cabinet screws on a lot of the kit I see they must be
stored in sheds or garages.
Anyway this example I "abraided" with a cut segment of nylon cable tie and
"Brasso" metal polish, cleaned off by a strip of card dampened with meths.
Drilled a hole through the board either side of the switch and tied some
silicone rubber cordage around the switch passing through a piece of plastic
barrel that seated neatly in the top of the flexing metal strip.


Hold on... did you just say that you DRILLED HOLES through the circuit
board of someones possibly valuable/precious amplifier! after 'abrading'
the contacts with a chunk of CABLE TIE! and BRASSO!

Electrolube make contact cleaning strips specially for the very job of
cleaning contacts (the clue is in the name) they are pink and they work
- for a while, then the problem comes back.

Look.. don`t **** about, just replace the damn sockets with new ones
add a drop of Elecrolube from one of those squeezy pen things right on
the spots where the contact is made and Bob's your uncle as we say over
here.


Ron(UK)

--
Lune Valley Audio
Public Address Systems
Hire Sales Maintenance
www.lunevalleyaudio.com

Arfa Daily March 1st 07 01:04 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

"Dave Curtis" wrote in message
...
On Thu, 01 Mar 2007 10:31:50 GMT, "Arfa Daily"
wrote:

'Vagina' is a real word, 'alnico' isn't,


Webster disagrees:
http://209.161.33.50/dictionary/alnico


Mic is there too;
http://209.161.33.50/dictionary/mic

-Dave


Vagina has a proper latin root meaning "sheath". Irrespective of what
Webster's says, alnico *is* an acronym, which makes it not a 'real' word in
the sense that I was intending, as I'm sure you really understood ... ;~)

However, that said, I do accept that a language is a living thing, and
that's how new words become part of it. Common usage by uneducated people
though, doesn't make them "right", and I wince every time that the Oxford
English ( IMO, the only proper dictionary of the English language ) publish
a list of half-arsed 'new' words, which are actually slang, that they are
going to include in their next edition.

Some years back, my kids were coming home from school telling me how
"face-ty" other kids had been that particular day. It took me ages to get to
the bottom of this. It turned out that what they were trying to say was the
word "feisty". Thickos ( not a real word either ! ) at the school had
actually 'invented' a new word, by mis-pronouncing an existing one. My kids
have now left school, and know what the word should be, but I'm willing to
bet that this 'new' word is still in use at the school, and will spread,
until in 30 years' time, the Oxford English are listing it in their latest
volume !

Arfa



Arfa Daily March 1st 07 01:06 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 

"JW" wrote in message
...
On Wed, 28 Feb 2007 17:00:43 GMT "Arfa Daily"
wrote in Message id: :


"Lord Valve" wrote in message
...


[...]

You pluralized a word with an apostrophe. That's a hanging offense
where
I come
from, pardner.

LV

Well said. There was a letter in my Sunday paper just last week about
exactly that ...


Anything in there about not trimming posts? ;)


Wasn't me ... !!

Arfa



DGDevin March 1st 07 05:05 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
"Lord Valve" wrote in message
...


Damn straight, if there's one thing LV is good at it's pulling his own
wire.



Yours has obviously been pulled. Again.

Here's your sign.


Son, if there is one thing a guy who has himself photographed wearing a big,
floppy crocheted hat and pointing an unloaded handgun into the camera needs
it's an ability to laugh at himself. Loosen up boy, if there is one act you
can't carry off it's stern authority figure, you just don't have the chops
for it.



clifto March 1st 07 09:58 PM

Send/Return 1/4 inch socket by-pass switches going open circuit
 
TD Madden wrote:
Homer J Simpson wrote:
"Lord Valve" wrote in message
...


OK, school-time: what you need is a GC Electronics 9337 "Plastone"
contact burnishing tool.



For cheap contact filing get a diamond nail file from the dollar store.
Power off first.

dollar-bill will work in a pinch, too..


Soft side of a matchbook cover. Cleans, doesn't burnish, but works a treat.

--
"...global warming is an apocalyptic faith whose preachers demand sacrifices
of others that they find far too painful for themselves."
-- Andrew Bolt, in Australia's Herald Sun


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