Muffin Fuzz with tone bypass switch

RICHB555

Active member
I’m building the Emanating Fist Dope Priest where the BC549Cs are installed backwards. Only passes signal in bypass. Thanks for any help
 

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Hate to rain on your Boxing Day, but I think BC549C is had a reverse pin out than standard, so you have actually installed them correctly. Have you checked the all polar components for correct orientation?…
 
Hate to rain on your Boxing Day, but I think BC549C is had a reverse pin out than standard, so you have actually installed them correctly. Have you checked the all polar components for correct orientation?…
Thanks for your response and sorry for the miscommunication. I meant to point out in the OP that the BC549Cs were correctly installed by reversing them so someone wouldn’t point that out as a possible problem.

In terms of polarity, can someone explain the 3 eyelets for the cap through holes? I used the outer ones - is this correct?
 
In terms of polarity, can someone explain the 3 eyelets for the cap through holes? I used the outer ones - is this correct?
The 3 holes are to accomodate different lead spacing for electro or film caps.

With tantalum, polarity must be correct so the + hole is important, my guess is that the 2 others are connected together, so yes outer ones are correct.
 
If you've got signal for bypass, not for engaged, then likely you've got a signal short-to-ground.

Quickest way to source that, I think, is to audio-probe it and see where you lose the signal and then inspect the components closest/connected to that point.


Just for fun, have you tried reflowing everything?
I'd start with the OUT on the PCB, it looked blobulous and may be a cold solder-joint despite the amount of solder there.
 
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