[sdiy] Dual power supply solution?

[Peter Grenader]

>> I think it's easy enough to make a 15 volt supply, and then put 12v
>> regulators on the modules which need them. Many circuits which I have
>> built which were designed for +/-12v work fine with 15.

sorry - sent to soon (wasn't done blabbing!).

Most *will* work with a lower supply, the question is how well and how much
spec hack  you're willing to tolerate. Critical adjustments such as 1v/oct
tracking, overall frequency ranges, etc will be compromised.

As far as slapping a 12 volt regulators on every module you wish to step
down - you can do this, but add this up ten times and you're burning a lot
of juice unnecessarily.  If I were going to do this, I'd add a regulator
board at the power distribution stage and a separate 12 volt buss.  You may
need more than one of these 12 power adapters, but this is an improvement
over a regulator for each module!

-P