Dallas Arbiter Fuzz Face Clone with AC-128's Ground Problem

[soupbone]

I built a Fuzz Face using Dragonfly's Layout; http://www.aronnelson.com/gallery/main.php/v/DRAGONFLY-LAYOUTS_0/album18/album151/DALLAS_ARBITER_FUZZ_FACE_GERMANIUM_PERF.gif.html  Using this wiring diagram for the carling dpdt switch ; http://fuzzcentral.ssguitar.com/faq/dpdtwiring.gif   I'm using a d.c. power jack like this; http://www.beavisaudio.com/techpages/PedalPower/  Is Dragonfly's layout supposed to be wired for Positve Ground?,and if so,How would you wire the d.c. jack?Thanks in advance

[Mike Burgundy]

The classic FuzzFace uses PNP transistors (such as AC128) and yes, it's positive ground. The layout also shows this: there are connections for -9V and ground (=+9V)
For a DC connector, swap + and -, and make damn sure you're not shorting the - to ground/chassis. Note that you can ONLY use that supply for the FuzzFace, daisychaning with negative ground pedalswill short out the supply. If you mean to leave this on a pedalboard (with a master power switch) don't bother with switching the power on via the input jack. Measure the terminals on your dc connector with a plug inserted, and wire -9V to the tip connection, and ground (+9V) to the barrel.

[soupbone]

The classic FuzzFace uses PNP transistors (such as AC128) and yes, it's positive ground. The layout also shows this: there are connections for -9V and ground (=+9V)
For a DC connector, swap + and -, and make damn sure you're not shorting the - to ground/chassis. Note that you can ONLY use that supply for the FuzzFace, daisychaning with negative ground pedalswill short out the supply. If you mean to leave this on a pedalboard (with a master power switch) don't bother with switching the power on via the input jack. Measure the terminals on your dc connector with a plug inserted, and wire -9V to the tip connection, and ground (+9V) to the barrel.

Cool!I'll give that a shot.Thanks Mike!