On May 26, 3:17 pm, "newshound" wrote:
"Joseph Gwinn" wrote in message

...



In article s.com,
"Karl Townsend" wrote:

Be careful, dangerous stuff electric fishing. "100-600 V (pulsed DC
selectable in 100 V steps)"
http://www.niwa.cri.nz/rc/instrumentsystems/efish

I'm not even going to ask their price. I can see its too expensive.
Anybody
know how to make one of these?

The classic fish shocker was a hand-cranked telephone ring generator.
Puts out ~100 volts at ~20Hz when cranked. They were a very common
military surplus item, having been used for field phones. I recall
seeing one advertised in the last year, although I was not looking.

Joe Gwinn

Talking of mil-surplus, my father and his fellow squaddies in the UK Royal
Engineers used to fish in Ireland during WW2 using gun-cotton. He was there
looking after the mustard gas (which of course we didn't have), he also
trained special forces in demolition. Apparently, a standard slab of
gun-cotton (about the size of a paperback book) left hanging in the flue of
the stoves used in the army huts was the usual way of showing one's
displeasure with the occupants.


Seeing as how the guncotton would not explode, but would 'burn
quickly' (deflagration), I have to assume something about its
decomposition must have been dramatic, else it would go unnoticed.

Lotsa flames? Lotsa sparks? maybe a stiong pulse of gas that would
blow the stove contents out the front of the stove?


Dave