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Post new topic Anyone have an Ernie Ball VPjr volume pedal modded?
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Author Topic:  Anyone have an Ernie Ball VPjr volume pedal modded?
Jim Fogarty


From:
Phila, Pa, USA
Post  Posted 15 Oct 2018 2:22 pm    
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I really like the size and form/throw of the VP jr volume pedal. I've seen a couple places that do Active/ No Tone Loss mods on these. Has anyone had that done? Happy with the results?

Any drag would be needing another power supply. If it consumes less than 100mA, it would be nice if a battery was an option.

Thoughts?

https://www.jhspedals.com/products/bass-pedals/ernie-ball-volume/
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ajm

 

From:
Los Angeles
Post  Posted 16 Oct 2018 6:28 am    
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What is the value of the pot in the stock EB Jr pedal?
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Charlie Hansen


From:
Halifax, NS Canada and Various Southern Towns.
Post  Posted 16 Oct 2018 7:46 am    
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250K.
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Mike Bacciarini


From:
Arizona
Post  Posted 16 Oct 2018 1:22 pm    
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I have a VPJR that I put a 470K Bradshaw pot in and it's great. https://www.songwriter.com/bradshaw/potentiometers.php
New Kevlar string & spring kits for the VPJR go for about $4. I really like the size and feel of this pedal and it matches my EB Wah pedal exactly in height. I run the psg into this pedal then to a JHS buffer before the effects.



I also have another VPJR that I installed a stereo 25K pot (had to drill a hole to install the 4th jack). I'll be using this one when I use my Steel/B3 rig. Each pot will control one of two selectable FX chains. The EB pedals are built like a tank and the Bradshaw pot is long-life. I've heard people say the string breaks, but a new Kevlar string should last a long time.
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MCI Arlington S-10 3+5, George L E-66, BJS & Emmons bars, Fender Princeton 65W, Fender Satellite SFX, custom FX rack, 1983 Dobro 60D, SX-8 lap steel, Martin D16GT, Ibanez AS73, 1978 Rickenbacker 4000 custom.
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ajm

 

From:
Los Angeles
Post  Posted 17 Oct 2018 7:09 am    
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Sorry in advance if this hijacks the conversation.

"I also have another VPJR that I installed a stereo 25K pot......"

I have heard of volume pedals that use a 25K or 50K pot.
If you are running audio through it, wouldn't this severely load and destroy the signal?
Unless of course you have a buffer both before and after the VP.
I must be missing something.

Note that I'm not talking about using it as a DC voltage controller.
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Mike Bacciarini


From:
Arizona
Post  Posted 19 Oct 2018 7:59 am    
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ajm...
The 25k pots are used in a path like this:
PSG > buffer > EHX B-9 > active Wah > 25k vol pot > Neo Ventilator II > HOF reverb > amp. I can't hear a difference between the pot inline or bypassed or through its travel. Just my experience.
_________________
MCI Arlington S-10 3+5, George L E-66, BJS & Emmons bars, Fender Princeton 65W, Fender Satellite SFX, custom FX rack, 1983 Dobro 60D, SX-8 lap steel, Martin D16GT, Ibanez AS73, 1978 Rickenbacker 4000 custom.
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ajm

 

From:
Los Angeles
Post  Posted 19 Oct 2018 8:32 am    
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Mike: Like I said, the only way that I can see a 25K pot working is if you have a buffer both before and after it at all times.

And that buffer before it had better have a very low output impedance. And/or some gain with it.

If you had something that could true bypass the volume pedal, you might be able to hear a difference that way.
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Roland Scholl

 

From:
Florida, USA
Post  Posted 21 Oct 2018 3:28 am     EBJR Volume pedal
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Yesterday I finally got around to changing the pot in my EBJR pedal: I installed a 500k PEC pot in it (I had to drill a bigger hole in the pot holder, but since this is an aluminum piece, no biggie). The difference in tone and volume is like night and day! It sounded muffled before, now it's as clear as my Emmons and Goodrich pedals.
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