I have a new VP Jr 25k I’m using with an Eclipse. When I calibrate the pedal, there is a spot in the pedal travel about 70% down, when I look at the pedal calibration data, the value will stop, reverse, and become very erratic for about 10-15% pedal travel, then becomes smooth and normal again to 100%. This happens on either pedal input, and if I reverse the Tip/Ring on the VP Jr I/O, problem still happens but at about 30% into the pedals travel.
If i use the pedal to modulate a FX block send from 0-100% – I see the same problem in the send data. The pedal works, but is not very smooth.
Is this normal for a non-linear pot or is the pot bad? I could exchange the VP Jr.
I don’ have access to another pedal nor do I have a guitar with active pickups to check it out as a volume pedal. Any suggestions?
I got another VP Jr 25k and it did the exact same thing as the 1st one. I exchanged it for a Moog EP-3 and it works quite well! The only thing I did not try with the VP’s was to try a different TRS cable. I don’t see how the cable could have caused this problem. Although I’d prefer the VP pedal as it feels great, the Moog is pretty good – I’m happy!