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Topic: Scratchy Pot in Goodrich 120 |
Greg Wisecup
From:
Troy, Ohio
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Posted 10 Apr 2013 7:57 am |
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1) Took off the bottom access plate.
2) Sprayed tuner cleaner (Radio Shack?) where shaft meets the pot.
3) Sprayed where the two pieces of the pot come together.
4) Let it sit with the pot shaft pointing up for ten minutes.
No more scratchy pot. Whew! I need a nap! 
_________________
Derby SD-10 4&5 Black!(duh)/
Derby D-10/Steelers Choice/
Goodrich 120/ 2- Katana Boss 100's
/Nashville 400
RV-3/ Zoom MS-50G
As long as I'm down in the mix I'm Fantastic! |
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John Polstra
From:
Lopez Island, WA, USA
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Posted 10 Apr 2013 1:50 pm
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Usually that kind of fix doesn't work for very long. But maybe you'll get lucky.
John |
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Dick Sexton
From:
Greenville, Ohio
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Posted 10 Apr 2013 3:00 pm You know I'm right...
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| If it is a pot pedal, always have a spare, always carry it... That's not the one I fixed is it? |
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Greg Wisecup
From:
Troy, Ohio
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Posted 10 Apr 2013 3:55 pm
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No Dick. That was the Derby pedal. I do carry a spare pedal. I have a pot waiting for you if this one fails. 
_________________
Derby SD-10 4&5 Black!(duh)/
Derby D-10/Steelers Choice/
Goodrich 120/ 2- Katana Boss 100's
/Nashville 400
RV-3/ Zoom MS-50G
As long as I'm down in the mix I'm Fantastic! |
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Dick Sexton
From:
Greenville, Ohio
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Posted 10 Apr 2013 4:04 pm Hahaha!
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| Give me a call, I know this nice Mexican Food place we stop at, to get in the right mood to do your electronics work. Rita Time... Haha! |
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Greg Wisecup
From:
Troy, Ohio
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Posted 10 Apr 2013 4:09 pm
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_________________
Derby SD-10 4&5 Black!(duh)/
Derby D-10/Steelers Choice/
Goodrich 120/ 2- Katana Boss 100's
/Nashville 400
RV-3/ Zoom MS-50G
As long as I'm down in the mix I'm Fantastic! |
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Jon DeLorme
From:
Brooklyn New York, USA
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Posted 10 Apr 2013 7:19 pm
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| I'm having a similar problem on the 120. the contact cleaner has been a cheap bandaid for the last couple of weeks. This thing is generally new (6 months), is this the avg life of a goodrich pot? the "extended life" pot no less? |
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Doug Earnest
From:
Branson, MO USA
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Posted 10 Apr 2013 7:23 pm
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| That's about how much life I got out of mine, too. |
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Scott Duckworth
From:
Etowah, TN Western Foothills of the Smokies
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Posted 10 Apr 2013 7:56 pm Electronic cleaner
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A lot of ham operators use Deoxit, and say it is better than the garden variety cleaners.
_________________
Amateur Radio Operator NA4IT (Extra)
http://www.qsl.net/na4it
I may, in fact, be nuts. However, I am screwed onto the right bolt... Jesus! |
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Malcolm McMaster
From:
Beith Ayrshire Scotland
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Posted 10 Apr 2013 9:55 pm
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Get a Dunlop pot from Tom Bradshaw, not as easy to solder, but do last longer than the so called long life ones, or better still buy a Hilton pedal- no pot-great pedals and great service from Keith.
_________________
MSA Millenium SD10, GK MB200, Sica 12inch cab, Joyo American Sound Pedal/ Jay Ganz Straight Ahead amp, Telonics 15inch in Peavey cab, Digitech RP150, Peterson tuner.Hilton volume pedal.Scott Dixon seat and guitar flight case. |
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Greg Cutshaw
From:
Corry, PA, USA
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Posted 11 Apr 2013 3:54 am
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Deoxit is a great cleaner but none of their products will repair a worn out track or wiper where the carbon track has been worn out. The new conductive plastic pots can last 20 years in a recording studio slider and a good 5 years in a pot pedal (there's always exceptions). I've gotten over 4 years on my Dunlop HotPotz and it's as good as new:
http://www.gregcutshaw.com/Goodrich%20120%20Pot/Goodrich%20120%20Pot.html
I like the way the pot circuit interacts with the pickup, cords and amp to produce a vintage pedal steel tone.
Greg |
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Greg Wisecup
From:
Troy, Ohio
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Posted 11 Apr 2013 4:37 am
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I don't know how old this pot is. I've had the pedal for 4 years. Great pedal. I have a 500 k pot to put in it should it fail. For now it's dead quiet.
_________________
Derby SD-10 4&5 Black!(duh)/
Derby D-10/Steelers Choice/
Goodrich 120/ 2- Katana Boss 100's
/Nashville 400
RV-3/ Zoom MS-50G
As long as I'm down in the mix I'm Fantastic! |
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Dick Sexton
From:
Greenville, Ohio
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Posted 11 Apr 2013 5:16 am Just thinking...
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There are very few materials, you can rub one against the other and not produce particals of the material or materials, that will get between the two. If one of the materials is carbon, it is not much of a problem(it's conductive), unless oil is introduced. I've opened up pots where the metal wipers were worn almost away and they still were working. The scratchiness is caused by the instantanious loss of connection between the wiper and the resistive material. The old AB pots could be opened up, rinsed out with "contact cleaner", a piece of paper slipped between the wiper and the carbon track to clean the carbon from between the two and then reassembled. Even just rinseing them out was a big help and usually worked for a long time. Then Allen Bradley went away. It was inevitable, there pots lasted 10 to 15 years, I had one that did. That was before programmed obsolesence. Now pot builders want you to buy pots. Why would they want their pots to last 10 to 15 years. ABs were king, their gone... A few of what is available now, are pretty good. But none, measure up to the old ABs for lasting a very long time. None.
Non pot pedals are an option. True, but what are your favorite pros using? I wonder?
Of course, this is from personal experiance and my opinion. I'm sure yours may be different. |
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Roual Ranes
From:
Atlanta, Texas, USA
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Posted 11 Apr 2013 5:28 am
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| Some of those pots are made different. The ones with the knuckles riding on the resistor or cleanable and last longer. The ones with the carbon brick don't wear long. |
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