Ebow

[Tom Duff]

Anybody know what the circuit inside an Ebow looks like?
It's encased in epoxy & at $100 a pop I'm not really interested
in sacrificing it.  There's obviously a couple of
eletromagnetic transducers (one with a magnetized core) and
an 8-pin integrated circuit (I'm guessing some kind of
op amp, but which one?) on a tiny PC board, but
I'd like more detail.  I want to build an Ebow-controlled
zither, but the requisite 50 or so ebows are too pricy to
ponder.  On the other hand, I'm fairly well tricked out for
winding pickups & assembling circuitry.

-- 
Tom Duff.  The Internet is a great way to get on the net.