[time-nuts] 4KV Power Supply Recommendations

[brucekareen at aol.com]

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