Home › Forums › Design and Building › Effects Design and Construction › AX84 Variable Bias › Re: Re: AX84 Variable Bias

June 1, 2011 at 4:19 am #5479
DeepBlue
Participant

So just one more update…after measuring the DC across all cap’s in my tone stack, I see that both the Mid and the Bass are passing almost 130V of DC across them! I believe that this should not be so am I correct? I am planning to switch out the cap’s as well as ad a grid leak from pin 5 to grnd using a 220K resistor. If anyone could confirm that in fact the DC across my cap’s in the tone stack would be incorrect. It seems that this would then run through my volume pot and cause the scratchy sound I am hearing? So I am about to swap the caps out as well as ad the grid leak.