Question about GGG bipolar power supply.

Started by rufustf, March 13, 2007, 05:00:41 AM

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rufustf

Hello communal brainpool, mabye one of you can give me a tip about this:
I built the ggg bipolar PS and it's just great. Can I make a jack from only the +9V output to power the pedals I use that don't require Bipolar power? Or the -9V out? What will it do to the circut to draw more ma's from the + power than from the - out?
Thanks-
Jason

sonbone

I honestly don't know if it hurts anything or not, but I do it. I'll have to say that I'm not drawing much current from either the bipolar output ( I usually power a Craig Anderton Super Tone Control) or the +9V output ( preamp made with 3 J201s).

I'm interested to hear other comments, I might be lucky I haven't blown up the world yet  ;)
...sjm

rufustf

Someone at GGG emailed me saying to go right ahead, the circuit should not suffer any damage from drawing more + or - voltage than bipolar.
So I'll give it a go.

lynessmy

Can you offer some help?
I building this same circuit but had  no luck to get the negative side....
i manage to get +9v Sharp for the positive end.

The transformer i have has 12 0 12v at the secondary end.
I had tried to connect 12-0 to PCB input with NC at the center tap, and also 12-12 to input while center tap to circuit ground.
Both connection had the same result as describe above.