Pedalboard setup for positive/negative ground pedals...

[tommycataus]

Hey guys, happy weekend!

I've just had my first experience using Ge trannys with the original Dallas Arbiter Fuzz Face, and what can I say... silicon just doesn't compete when it comes to fuzz!

Incidentally this is also the first positive ground pedal I've built, so consequently I've been using a battery for breadboard tests etc. My question for you guys who use your own creations onstage is, how do you prefer to power these pedals? Is your preference to keep them battery powered to avoid any mishaps... or do you risk it for a biscuit, use power supplies with isolated outputs and pay special attention when setting up with limited light?

Cheers!

[Liquitone]

Personally I prefer batteries in my germanium fuzz and treblebooster as it saves a lot of hassle, it is very clean power with no noise or hum, I think they sound better with carbon zinc than with alkaline or external power.
Also batteries last very very long in these circuits.

[tommycataus]

Thanks for that, I was debating whether to fork out and get something high end. I can see it ending very badly if the wrong effect goes into the wrong hole 

[duck_arse]

I shuffled a bunch of my builds off to my nephew for him and his band to test. they said they was all great, and they would buy them, except they don't have external supplies.

so I got some DC jacks, and have started w/ the internal voltage inverter, and have not completed a pedal since.

this is probably of little assistance. just ignore me.

[tommycataus]

So I got some DC jacks, and have started w/ the internal voltage inverter, and have not completed a pedal since.

Well I was going to ask whether this is possible. Perhaps it might be something for me to look into once I'm less of a noob.

Also I think anything you guys share is always of great assistance

[duck_arse]

there is a number of different ic's around that will do invert/regulate to -9V, and lots of circuits and discussions hereabouts. madbean has a circuit/project called the road-rage or something, I think, all done and easy.

[idy]

One problem with having several charge pump/inverter powered pedals on your board is "heterodyning"; ultra-sonic noises from multiple chips combine to create a high pitch whine. Some pedals do, some don't. You need to experiment. I have added on overboard outboard convertors with no problem, and then gotten the whine from "professionally" laid out boards that had the inverter on the PCB.

But when it works its great.