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Wah Wah Voltages

Started by kurtlives, June 25, 2008, 10:20:17 PM

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kurtlives

Can anyone give me the working voltages on your standard two transistor wah?

Thanks....Chris
My DIY site:
www.pdfelectronics.com

ayayay!

The people who work for a living are now outnumbered by those who vote for a living.

kurtlives

Damn it...I looked there :D

Thanks

My Q1 voltages look good a bit high but good.
Can someone tell me the Q2 voltages?
Mine are...
C: 8.3V
B: 5.2V
E: 5.2V

I am using BC109C transistors...hFE of about 500

My problem is the output is a bit low. Not super low but a noticable loss of volume. The 68K input resistor is now a jumper in an attempt to squeeze out all the volume I can. I think the problem lies at Q2 though.

Any help is appreciated.
My DIY site:
www.pdfelectronics.com

kurtlives

I jumpered the 68K input resistor and still cant get unity gain :'(
My DIY site:
www.pdfelectronics.com

kurtlives

The only reason I can think of why I am getting the low out put is that the transistors are mis-biased. I am using 10% tolerance resistors.
The collector resistor for Q2 is 1.2K. Could this be screwing it up?

My DIY site:
www.pdfelectronics.com