[Milsurplus] Design for a cheap 400Hz power supply

[Richard Brunner]

Re:
" but this thing howls like a banshee ..."

Yes, and I have the other howling Banshee, the 800-1 inverter,  40-50 amps
at 28 volts.  I have to build a sound-proofing box, or the neighbors will
complain.  The solid-state inverter transformer will sing too, but not as
bad as the Banshee.   Actually, I think 60 cycle transformers are singing
too, (magnetostriction) but we don't hear so good at 120 cycles.

Richard Brunner, AA1P