[time-nuts] 4KV Power Supply Recommendations
brucekareen at aol.com
brucekareen at aol.com
Sun Jan 17 22:54:23 UTC 2010
Slightly off topic -- but perhaps suggestive: A couple of years ago I
needed to re-train some nocturnal raccoons who were toppling our garbage can.
I purchased an inexpensive and very compact fence charger at a farm
supply. Opening the lightweight unit out of curiosity, I found that it contained
a transformerless, voltage-multiplier that plugged into a 115 V outlet and
generated about 500 VRMS. All that was inside was a small PC-board with
diodes, disc capacitors, and one current-limiting resister in the feed to
the HV terminal. The ground return was through the AC line neutral.
Connecting the lone HV terminal to a small piece of rabbit wire placed on
the lid of the plastic garbage can did the trick. I had to electrify the
can once more -- about 6 months later -- but have not had to do so in the two
years since.
It might be possible to construct a voltage multiplier, along the same
lines, that would reach 4KV. The capacitors would have to be larger to
deliver 5 MA.
Bruce Hunter, KG6OJI
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