Anyone try this thing. Says its a unipole (north)set at 1000Hz.
Does the speaker make noise?
Looks like it doesn't have 2 leads, just red (positive) so can
you use a mini-FG or similar or do you have to buy the auto-zap box?
From what I can tell, maybe just use a terminator 2, set it to 1000Hz,
positve offset, square wave and it will do the same thing?