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Post new topic Scratching sound from amp when I use my Goodrich 120 pedali
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Author Topic:  Scratching sound from amp when I use my Goodrich 120 pedali
Daniel OBrien


From:
New Jersey, USA
Post Posted 13 Mar 2018 9:58 am     Reply with quote

For the last month, whenever I use my Goodrich 120 volume pedal, I’m getting a scratching/scraping sound from the amp. I remember a number of posts a while back indicating that this is a common problem, with a relatively easy process for cleaning the pots. But not sure what a “pot” is. Or what to use to correct the problem. Can anyone help me? I’m a real beginner, so some explicit suggestions would be greatly appreciated.
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Tommy Mc


From:
Middlesex VT
Post Posted 13 Mar 2018 10:58 am     Reply with quote

It sounds like you have a scratchy "pot". The pot is the actual volume control...or potentiometer. Sometimes you can squeeze a little life out of it by spraying DeOxit into the body of the pot, but ultimately a replacement pot is the solution. Greg Cutshaw has a web showing the replacement process: http://www.gregcutshaw.com/Goodrich%20120%20Pot/Goodrich%20120%20Pot.html

Edit: fixed link


Last edited by Tommy Mc on 13 Mar 2018 3:41 pm; edited 1 time in total
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Don Kuhn


From:
Poetry/Terrell ,Texas, USA
Post Posted 13 Mar 2018 11:10 am     Reply with quote

Tommy I'm getting a Error 404 when I click on that address saying file not found if you don't mind could you recheck the web address- Thanks
Don
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Andy Henriksen


From:
Michigan, USA
Post Posted 13 Mar 2018 12:22 pm     Reply with quote

http://www.gregcutshaw.com/Goodrich%20120%20Pot/Goodrich%20120%20Pot.html

looks like "page" got appended to the end of the previous link somehow.
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Don Kuhn


From:
Poetry/Terrell ,Texas, USA
Post Posted 13 Mar 2018 12:47 pm     Reply with quote

Thank's Tommy it's working now
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Dan Beller-McKenna


From:
Durham, New Hampshire, USA
Post Posted 14 Mar 2018 2:42 am     Reply with quote

Also, check that all of your cables are fully pushed in and that you haven't reversed the in and out on your pedal.
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Eric Dahlhoff


From:
Point Arena, California
Post Posted 14 Mar 2018 10:22 pm     check amp too Reply with quote

Also... make sure it's not the amp! Try your pedal with a different amp.
A leaky cap on the input of an amp can cause the scratchy sound on the vol pedal.
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"To live outside the law you must be honest." (Bob Dylan)
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Bill Ferguson


From:
Norcross, GA USA
Post Posted 15 Mar 2018 5:33 am     Reply with quote

Daniel, I do suspect it is the volume pedal pot.
If you are handy electronically and have a soldering iron, you should be able to change it yourself.

or

If you want to ship me the pedal, I will install a new Goodrich Volume Pot for you.

Either way, let me know as I am your Goodrich dealer on the East Coast.

Regards,
Bill Ferguson
_________________
AUTHORIZED GeorgeL's, Goodrich, Telonics, BJS and Peavey Dealer: 1993 Green Emmons D-10 LeGrande w/ Emmons 108 pickups, 2004 Mahogany Carter D-10 w/ Lawrence XR16 pickups, Goodrich or Telonics Volume Pedal, George L's Cable & Strings, Peavey Nashville 112 (I have 2), Peavey Session 115 (#1) and a Telonics Combo 112
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FRANK MARIANO


From:
PENSACOLA FL
Post Posted 17 Mar 2018 11:32 am     Pots Reply with quote

I changed out 2 pots on my Vol pedals within the last 12 months. They are both scratchy now. I’m wondering who makes the best pots out there?
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Zum,Mullen,Sterio Steel,Little Walter, Fox Vintage,Beard,Fender Lap
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Georg Sørtun


From:
Mandal, VA, Norway & Weeki Wachee, FL, USA
Post Posted 17 Mar 2018 12:17 pm     Re: check amp too Reply with quote

Eric Dahlhoff wrote:
A leaky cap on the input of an amp can cause the scratchy sound on the vol pedal.
Important point, as DC from leaky, or not properly discharged, caps in direct connection to the potentiometer is the most common cause for scratchy pots. Once the damage is done and burn-marks (literally) have developed on the pot-track, pot-replacement is the only solution. But, if the cap causing the problem is still in place, the new pot won't last long no matter how good it is.
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Bill Ferguson


From:
Norcross, GA USA
Post Posted 17 Mar 2018 12:50 pm     Reply with quote

The new Goodrich pot is by far the best pot available today.
One year unconditional warranty.
After about 3 years i have only had one customer complaint and i resolved that immediately.
_________________
AUTHORIZED GeorgeL's, Goodrich, Telonics, BJS and Peavey Dealer: 1993 Green Emmons D-10 LeGrande w/ Emmons 108 pickups, 2004 Mahogany Carter D-10 w/ Lawrence XR16 pickups, Goodrich or Telonics Volume Pedal, George L's Cable & Strings, Peavey Nashville 112 (I have 2), Peavey Session 115 (#1) and a Telonics Combo 112
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FRANK MARIANO


From:
PENSACOLA FL
Post Posted 17 Mar 2018 6:22 pm     New pot Reply with quote

Bill send me your shipping address i want to send you 2 pedals for you to replace the pots
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Zum,Mullen,Sterio Steel,Little Walter, Fox Vintage,Beard,Fender Lap
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