[Amps] HV cable for abt 200 degrees celsius?

[Mike Tubby]

IMHO you don't need "special" insulation, use RG400 PTFE
coax which is both double screened and easily capable of
working at over 200 C... problem solved...

I use RG400 for all my EHT leads with either SHV or MHV
connectors (depeding on which PSU I want to work with
which amp) and only use RG58 for the B- return lead (with
TNC connectors)... the only place you'll find TNCs in my
shack!


Mike G8TIC/M0VHF/M0BAA



----- Original Message ----- 
From: "Ian White, G3SEK" <G3SEK at ifwtech.co.uk>
To: <amps at contesting.com>
Sent: Tuesday, April 13, 2004 7:41 AM
Subject: Re: [Amps] HV cable for abt 200 degrees celsius?


> Frank Goenninger wrote:
> >Hi all:
> >
> >Yet another question for building this GU-84b based amp:
> >
> >What cables would you suggest (and where to get that in Europe) for the
> >High Voltage (abt 4 kV) connections within the amp and between the amp
> >and the PS?
> >
> >Which insulation to take? PE, VPE?
> 
> The alternative to special high-temperature insulation is to work on 
> reducing the 200C requirement. That would allow you to use regular 
> RG58... and coaxial HV cable has many advantages.
> 
> 
> -- 
> 73 from Ian G3SEK         'In Practice' columnist for RadCom (RSGB)
> 
> http://www.ifwtech.co.uk/g3sek
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