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[AMPS] screen regulators

To: <amps@contesting.com>
Subject: [AMPS] screen regulators
From: amps@txrx.demon.co.uk (Steve Thompson)
Date: Tue, 2 Mar 1999 08:26:28 +0000
In message <19990301180059.AAB15127@[209.239.238.104]>, Rich Measures
<measures@vc.net> writes
>
>>
>>One caveat on adding FETs in shunt to get the power handling up in a screen
>>grid shunt regulator that I didn't see on Rich's web page  (but I could have
>>missed it) is that you need to make sure they share the current equally.
>>Series resistors in the source are a good way.
>
>?  I do not use FETs in the screen shunt-regulator.  I use FETs in the 
>screen series-regulator.  In the latter, I use Source (neg. feedback) 
>resistor(s) as current-equalizers and to suppress osc. around 100MHz.  
>-  cheers
>
>
>
>Rich...
For belt and braces against oscillation, a few ohms right by the gate
(just like a grid stopper) will rarely cause any harm.

Steve

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