[Amps] Understanding Screen Current in a tetrode

[Roger (K8RI)]

On 1/27/2015 9:38 PM, Jim Thomson wrote:

Those old rigs come from an era where no one paid much attention to IM 
products and the signals from many of the "sweep tube" rigs was pretty bad.

73

Roger (K8RI)

> 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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