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[AMPS] TL-922 Filament Transformer Protection

To: <amps@contesting.com>
Subject: [AMPS] TL-922 Filament Transformer Protection
From: jono@enteract.com (Jon Ogden)
Date: Sun, 6 Jun 1999 22:10:52 -0500
>> How does closing a relay wether it is a hot closure or not produce a 
>> transient in anode current?
>> 
>
>"Hot switching" causes a transient in anode current by changing the 
>load (specifically, the plate load impedence).  Once the output contacts 
>close, the impedence changes abruptly and there is a discontinuity (or 
>very sharp change ... "transient") in the anode current. 
>
>If the relay switches "cold," there is no RF in the output tank and 
>thus no discontinuity (transient) in the anode current. 

OK, agreed.  I should have been more specific.  Rich was talking about 
how hot switching the INPUT of an amp causes an anode transient.  That's 
what I have a difficulty with.  Problems with hot switching the output 
are easily seen.

73,

Jon
KE9NA


-------------------------------------
Jon Ogden
KE9NA

http://www.qsl.net/ke9na    <--- CHECK IT OUT!  It's been updated!!!!!


"A life lived in fear is a life half lived."


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