I need the +/- 30V supply an AMP1 that i'm planning to build, but I can only get 0-18 0-18 and 0-25 0-25V transformers here.
The 18V units would give me +/- 25V (a tad low) and the 25V units +/- 35V (which is marginally high).
Which one should I go for? I will be rectifying and filtering the two outputs from the transfomers seperately, so theoratically I will drop approx. 1.4 volts from each output, which would give me 23.6V and 33.6 volts... but I'd prefer not to rely on that.