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[AMPS] screen regulators

To: <amps@contesting.com>
Subject: [AMPS] screen regulators
From: measures@vc.net (Rich Measures)
Date: Tue, 2 Mar 1999 03:15:52 -0800
>
>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.
>
?  I use one.  See R13 in Figure 8 (screen reg.) on my Web site.  .  

-  cheers, Steve



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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