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[AMPS] 572-B Input impedance??

To: <amps@contesting.com>
Subject: [AMPS] 572-B Input impedance??
From: johnf@futurenet.co.za (John Fielding)
Date: Tue, 27 Jul 1999 18:34:05 +0200
Amem Tom - clearly a "bum choice" for 6m!

John    ZS5JF

----------
> From: Tom Rauch <w8ji@contesting.com>
> To: Peter Chadwick <Peter_Chadwick@mitel.com>; John Fielding 
> <johnf@futurenet.co.za>
> Cc: amps@contesting.com
> Subject: Re: [AMPS] 572-B Input impedance??
To: <amps@contesting.com>
> Date: 26 July 1999 09:16
> 
> > I guess if the grid isn't totally, solidly, held to chassis and everything
> > else using low inductance grounding then this tube will make a superb
> > oscillator!!  Almost perfect as a Colpitts power oscillator.
> 
> and since the grid is connected to the base with a single thin wire 
> about three inches long, it is virtually impossible to ground the grid 
> like it should be.
> 
> 
> 73, Tom W8JI
> w8ji@contesting.com

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