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Old 18th April 2012, 03:42 AM   #1
diyAudio Member
Join Date: Jun 2011
Location: Hobart Australia
Default My fuzz pedal project is behaving badly

Hi all.

Hopefully a simple fix. I have a fuzz face PNP type circuit. it works really well with a 9v battery, however when I use a 9v plug pack problems start.
The issue is this. I have a single plug pack driving multiple devices. When all dc is plugged in it works (power to the devices in the chain). When I plug a 1/4" phono from fuzz to the little 9v amp input, power is cut. this happens with all devices in my collection. I had a thought that it is because of the positive ground the circuit has, but i cant work it out. no hair left too pull out.


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Old 4th August 2013, 04:16 PM   #2
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Join Date: Nov 2009
Location: Southern California
Fuzz is positive ground and the rest are probably negative ground. Plug it in, Dead Short!
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Old 4th August 2013, 08:58 PM   #3
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Join Date: Jun 2011
Location: Hobart Australia
Hiya, yep that's what it was.


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