[Amps] Hi-Pot Tester for sale

[ToddRoberts2001 at aol.com]

In a message dated 7/9/2006 8:57:13 AM Eastern Standard Time, 
jbigham2 at kc.rr.com writes:
I have never used one of these, what do you do?  Hook it up to the item to be 
checked and begin increasing the Kv and watch for current to flow at some 
point?  Then note the voltage at which the current flows?  I would assume such a 
device is very limited in its current ability.
Thanks for info.
Gene KB0GU Bigham

It doesn't look like there is enough info in the listing to tell if the 
hi-pot tester would be suitable for checking items an amplifier builder would be 
interested in like vacuum variables, vacuum relays, or vacuum tubes. For 
checking those items for high-voltage leakage you need a hi-pot tester with a 
microammeter range capable of reading only a few microamps and a voltage range of 
probably at least 0-10KV. The item listed has what looks like a meter range that 
reads in milliamps - this would be way too high a range. We would need 
something with a scale of perhaps 0-10 or 0-20 microamps. Also the item listed does 
not say how many KV it will adjust to. Many vacuum variables have operating 
voltages of 10KV or more so you want a hi-pot tester that will go to at least 
10KV or more. Any object reading more than 5-10 microamps of leakage at its 
normal operating voltage would be suspect. 73 Todd WD4NGG