Teflon UHF connectors and fresh RG-213 to about 5 KV or so; they are used commercially in non RF apps to at least 10 KV that Ive seen over several decades.
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----- Original Message -----
From: jim.thom@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Friday, December 21, 2018 8:23 PM
Subject: Re: [ham_amplifiers] 'Toll free' gets blasted with 6 kv !
<Carl
Dec 20 3:49 PM
< I stopped using those 30-40 years ago even at 2500V
< Carl
## OK, I'll bite. What do you use for hv connectors ???
## On a similar note, buddy with the hipotronics hi pot tester sez the internal HV wire leads inside the unit use plane jane RG-58..to get to the internal panel positive and negative connectors they use.
The unit is adjustable from 0-15 kv on lower scale....and 0-30 kv on high scale. At 30 kv... there is zero leakage, none, zero ua. RG-400, with it's teflon, should be even better than 58-U.
Heck, even 213-U should be ok..as long as it's marked every few inches with red tape etc.
I have 200' of new 393..so can spare a few feet of it for this latest project..which is a potential bomb as is..with 800uf filter cap and 7700 vdc.
Jim VE7RF
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