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Weener Wah: HELP

Started by kinski, February 10, 2012, 07:09:14 AM

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kinski

Man, I've been having bad luck with a number of my builds recently.

Cant get the Weener Wah to work right. Heel down to heel up, its all muffled sounding. I used the frequency pot, and also tried a 15n cap in its place. Same thing.

Any ideas?

Q1: 0.02v/0.58v/7.34v
Q2: 7.96v/4.8v/6.16v
Q3: 8.58v/0.82v/0.0v


stecykmi

in some ways, debugging stuff that "almost works" is hard than stuff that doesn't work at all. I would try tracing the circuit out with a probe. Other then that, the source of Q3 looks funny because it's at 0v, check to make sure there's no solder bridge to ground.

madbean

Voltages look way off to me. What transistors are you using?

kinski

Hmmm...I used the stock transistors.

kinski

How should the legs of the 2N3565 be layed out for Q1?

kinski

Got it to work! I had the Whipple upside down! I saw the word Whipple on the pcb so I just assumed that the top pin went there.

This thing sounds awesome! WHOA!   :o ;D