The Mini-3 Power Supply

The power-supply supplys +/- 12 volts DC at about 3/4 of an amp. You can use a 12 volt AC wall wart if you can find one at 3/4 amp.

* Testing The Power Supply

Plug it in and see if +/- 12 volts DC is at the output.
If not see if there is DC voltage at the filter caps.
If not see if there is AC voltage at the rectifiers.
If not unplug it and check your work.