With the tusker9 Parker Fly back in the shop I reran the the test matrix. With the 3-Way Mag-Piezo switch in the middle, and the Master volume all the way down, there is Piezo signal bleed thru to the amp. This occurs in Mono with a mono plug AND Stereo with a stereo plug and splitter. Testing the 3...

Yes thanks for the info. I found a Pre-refined wiring layout drawing, that looks hand drawn, showing the output jack Tip-Mag Ring-Piezo Sleeve-Ground, for Stereo operation I assume. I also assume the Mono/Stereo red button placed in the Mono position sets the output configuration to be a blend of Ma...

Thanks for replying to my questions Patzag , A schematic of the pre-amp system would be helpful. Is there one available? I have the 2 drawings of the flex tape, but without knowing what the brain does I am at a loss in finding a solution to the mystery: sometimes the MV works and sometimes it doesn'...

Greetings, I have been working on the tusker9 Parker Fly. I just want to be sure I understand the function of the switches and pots. The test matrix is confusing to me so I want to be sure I understand, e.g. is using a mono plug with the red button "IN" a valid use case? Can I assume the M...