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Post new topic Linear pot for Ernie Ball Volume pedal
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Author Topic:  Linear pot for Ernie Ball Volume pedal
David Spangler

 

From:
Kerrville, TX USA
Post  Posted 4 Apr 2015 12:42 pm    
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I ordered a DV Mark Multiamp and a Ground Control MIDI pedal for it. I have an old Ernie Ball Volume pedal and would like to convert it for use as an expression pedal with the Ground Control. I understand I will need to replace the pot with a linear taper. Can anyone suggest a source? Thanks
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Lane Gray


From:
Topeka, KS
Post  Posted 5 Apr 2015 4:28 am    
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I'd start with Radio Shack. Even if the pot went scratchy, I'm not sure it'd notice because the voltages are higher (and it doesn't see the audio signal), and it's only 5 bucks.
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2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects
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Stephen Cowell


From:
Round Rock, Texas, USA
Post  Posted 5 Apr 2015 10:54 am    
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All the pots I saw at RS were split-shaft... and this was *before* the bankruptcy.

http:\\www.tubesandmore.com

is the best I've found for guitar/amp/pedal parts... I'd worry more about the physical dimensions of the pot and less about the actual ohms... 50Kohms might just work fine, and be less noisy, than 250Kohms. Linear, of course. You'll probably need to get a 3-conductor ('stereo') jack for your pedal, since the box you're controlling normally supplies +5 (or whatever) on one wire... check the manual for this.
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David Spangler

 

From:
Kerrville, TX USA
Post  Posted 5 Apr 2015 8:25 pm     Linear pot for Ernie Ball Volume pedal
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Thanks for the suggestion. I looked and found pots designed for pedals with the long shaft and linear taper in 3 values: 125K, 150K and 200K. Earlier research suggested maybe 10KL but so far haven't found.
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Bill A. Moore


From:
Silver City, New Mexico, USA
Post  Posted 6 Apr 2015 7:19 am    
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David, if you find a source of 10K pots, (long shaft), please post it. I want to build a volume pedal for my MusicMan amp, and they also recommend a 10K.
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David Spangler

 

From:
Kerrville, TX USA
Post  Posted 6 Apr 2015 8:53 am    
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Bill, I found this one (and a couple others on Mouser.com:

http://www.mouser.com/Search/ProductDetail.aspx?R=P232-DFC25BR10Kvirtualkey57700000virtualkey858-P232-DFC25BR10K

Not cheap but looks like it would hold up.

Also this one but looks less rugged:

http://www.mouser.com/Search/ProductDetail.aspx?R=P230-1FD20BR10Kvirtualkey57700000virtualkey858-P2301FD20BR10K

Is this for use in the effects loop of your MM amp?
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Bill A. Moore


From:
Silver City, New Mexico, USA
Post  Posted 6 Apr 2015 2:34 pm    
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Thanks for the links, David!
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