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[Amps] 4xc250b Valve Bases - Screen ring capacity - HF v VHF

To: amps@contesting.com
Subject: [Amps] 4xc250b Valve Bases - Screen ring capacity - HF v VHF
From: Ken G3WCS <lists@kentek.co.uk>
Date: Sun, 05 Jun 2005 07:55:01 +0100
List-post: <mailto:amps@contesting.com>
Hello all,

I have a couple of 3rd party bases for 4cx250 valve bases but am unsure 
if they are designed for HF or VHF operation. I know that the capacity 
of the inbuilt screen grid capacitor was different between HF and VHF 
bases. I could check this (roughly) with the capacity function of my DVM.

Can anyone point me to the approximate capacity I should see for HF and 
VHF bases?

Thank you and 73,


Ken.
-- 

Ken G3WCS
IO83rh : Cheshire : NW England
(+44) (0)870 765 1632 (home)
(+44) (0)7733 400 950 (mobile & sms)
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