Hey I was at a surplus place and I found this tiny UTC transistor transformer, primary 200kCT secondary 1kCT:
here's a picture (http://damon.troutthursday.com/UTC%20DO-24.JPG)
My 1960 Allied Radio catalog says it's a "Deci-Ouncer" input transformer for transistor circuits - and it cost $7.35 back then! I also found one that goes from 600 ohms to 3.2 ohms... perhaps for driving a tiny speaker?
Anyway, searching Google it looks like I can make a Stun-Gun :shock: , or possibly a balanced Direct Box, so I can plug my guitar into a microphone input (more interesting).
Could it be used to cool effect in a stompbox? I'd love to hear from you guys who know your stuff on this one.