BD-2 boneyard mod not working

T

trymlg

New member
I can for the life of me not get my BD-2 boneyard mod to work. I built it with the ultrabass mod, and the main issue seems to be the gain pot. it's a B250K, but as soon as I turn it to about 10 o'clock, the volume cuts off. It only works in the clean territory. I used all the parts Chuck said to use, and I've made sure there's no grounding issues. Help please, how do I fix this?
IMG_3326.jpeg IMG_3332.jpeg IMG_3333.jpeg IMG_3325.jpeg
 
Indeed. We'll need better pix too. Measure and report the voltages on the collectors of the PNP transistors so we can see if the bias is in the ballpark.

FYI, cramming parts in that don't fit and melting film caps with the soldering iron is no bueno.
 
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