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[Amps] How do you measure HV with reasonable accuracy?

To: AMPS <amps@contesting.com>
Subject: [Amps] How do you measure HV with reasonable accuracy?
From: Jim Barber <audioguy@charter.net>
Reply-to: audioguy@charter.net
Date: Thu, 06 Aug 2009 18:16:21 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I need a HV probe with reasonable accuracy for working on this growing 
stack of hamplifiers. I have a Simpson 260 and know some of those 
pitfalls, and a 40KV CRT chicken stick that's probably +,- 20% on a good 
day.

How about:
(1) Five hand-selected 1M, 2-watt in series on a PCB or perfboard

(2) Bring out two HV connectors from the "bottom-most" resistor in the 
chain and then use a precision 1KV FET meter or VTVM, reading it as "x5" 
(I already have the meters)

Any better ideas? It probably won't see much over 4KV.

Thanks,
Jim, N7CXI


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