[Amps] Understanding Screen Current in a tetrode

Jim Thomson jim.thom at telus.net
Tue Jan 27 21:38:52 EST 2015


Date: Tue, 27 Jan 2015 16:55:07 -0700
From: Richard Solomon <dickw1ksz at gmail.com>
To: "amps at contesting.com" <Amps at contesting.com>
Subject: Re: [Amps] {Collins} Understanding Screen Current in a
Tetrode

When I ran a pair of 4CX250B's on Two Meters, 144 mhz, I tuned the Amp
for identical Screen Current, within Tube Limits.

73, Dick, W1KSZ

##  and just how do you adjust the screen current, individually, for EACH
tube ??? 

##  On another note, on all the old tube xcvrs, like my drake T4XC, TR-4,
heath sb-101,  yaesu FTDX-401, swan, etc, etc, none of em even had metering  for screen current !  

Jim   VE7RF



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