Excellent, that's nice to hear. If you're curious, this feeds a heavy-duty
stomp box that I plug my electric cello into. Normal audio signal goes in,
totally weird-n-crazy audio comes out.

"Glynn R." wrote in news:1111445291.484409.218050
@f14g2000cwb.googlegroups.com:

Since it outputs AC, polarity at the barrel plug should be pretty
irrelevant. Each side is supposed to be carrying equivalent electrical
waveforms, and it doesn't even matter if they aren't! Whatever this
feeds is going to sort it out anyway by means of an internal diode
network/bridge.

Worry not.