Mystery Volts In TS Power Section???

[Culley713]

Problem:  When I strum, I get a mix of the TS sound with cracking and popping noise.

I have located the problem though, I just don't know how to fix it.  When I disconnect the power section I get the correct values, V+=9.6 and Vr=4.8, but when it is connected to the rest of the pedal, I get Vr=6.30.  Also, when I disconnect the power section again and test the voltages of where I connect the V+ and Vr to, I get some small volts that slowly decrease until they reach 0.  I guess this is just the Caps draining (?) but I didn't know if that was supposed to be there or not?

[aron]

What are you calling the "power section"? Where exactly is that on the schematic?

[Culley713]

Sorry, I used this schematic... http://www.freeinfosociety.com/electronics/schemview.php?id=1136
and I omitted the diode and the 100uf cap.

So by power section, I mean the two 10k resistors and the 47uf cap (R9, R10, C7).

[ubersam]

Sorry, I used this schematic... http://www.freeinfosociety.com/electronics/schemview.php?id=1136
and I omitted the diode and the 100uf cap.

That might be your problem.

So by power section, I mean the two 10k resistors and the 47uf cap (R9, R10, C7).

That would be the biasing string.

[Culley713]

Well this is the second TS I've built and the first one, which I also omitted the diode and cap, worked fine.  I did this because I've seen other schematics that omitted those two components.  Plus, when I test the Vr separate from the rest of the pedal, I get the desired 4.5 volts.  It's only when I connect all the rest of the pedal components to the Vr that I get 6.30v...which I think is what is causing the popping and cracking noises?

Any Suggestions?