[AMPS] Screen regulator circuit needed

[km1h@juno.com]

On Wed, 18 Nov 1998 15:40:58 -0500 John Nelson
<John_Nelson@compuserve.com> writes:
>
>Message text written by Rich Measures
>
>>However, one need not use the same obviously-flaky zeners that GW4FRX 
>used
>. <
>
>For the record, the Zeners used to derive the comparison data 
>illustrated
>on Ian's web site were nine 20W Philips/Mullard BZY93C39 purchased
>specifically for the tests. These were chosen to give a nominal 350V 
>for
>comparison with the stabilised supply being developed at the time. 
>It's not
>clear why such components should be "obviously flaky", especially 
>since
>ISTR that this particular arrangement was the least worst of several 
>Zener
>combinations tested around the same time.    
>
>John Nelson
>GW4FRX

John, Ian, etc.

Interesting to note that Zener part #. Is there a list available
somewhere that gives data on various EU and Asian Zeners?  I can only
find some very spotty info ( Toshiba) and almost none have ECG or NTE
equivalents. 
A source of 20W diodes may be attractive since over here the options are
fairly well limited at 1 to 10W and then a big jump to 50W.

73  Carl  KM1H
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