power supply

[Laihal]

Hi all, first time long time (relative to the 4 months I’ve been attempting to build synths)

I’m super new to building synths - I started out of necessity because I can’t afford any of the gear I want, ha - and Lunetta systems have been so inspiring and given me much needed direction and focus in terms of parameters to follow. I was curious though about power supply. I’m trying to build myself a stand-alone, percussive synthesizer. At this point I’ve breadboarded a baby ten sequencer with a few extra 555 clocks, a clock divider and a shift register that I’m pretty proud of. Stumbling a bit in terms of voices and ways to trigger them but I’ll get there

Anyway, my question is if anyone could offer some links or recommendations to comprehensive or beginner oriented explanations of the differences in power supplies and the affect they have on functionality (Center negative vs positive, 9V v 12V)... like I said I’m hoping to build myself a stand-alone, semi modular synth, partially because I haven’t the funds to get myself a eurorack skiff and power supply and I’m trying to use things I already have, but I am taking inspiration from a number of MFOS and Lunetta schematics thay ultimately call for a 10 pin power supply and I’m worried that anything I try to build will not work or worse yet get fried...

Thanks so much for any advice or resources - and thanks for all the help thus far ^.^

[JovianPyx]

https://en.wikipedia.org/wiki/Power_supply Is a good place to start.

Of the types most useful for audio electronics, my opinion is the linear regulator supply is best. It is simple and can easily produce one ampere or more and the transformer can be a wall-wart. I keep old wall-warts and occasionally I find one that works in a project. I use a half-wave rectifier because it's easy to upgrade from single voltage to dual voltage bipolar (which works better with op amps).