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[AMPS] TL-922 Filament Transformer Protection

To: <amps@contesting.com>
Subject: [AMPS] TL-922 Filament Transformer Protection
From: measures@vc.net (Rich Measures)
Date: Tue, 8 Jun 1999 09:40:15 -0700


>>>More fundamental current goes through the resistors as the frequency goes
>>>up, because of the increasing reactance of the shunt inductor. I suspect
>>>that because most parasitic suppressors are 'designed' on an empirical
>>>basis, very little (if any) thought is geiven to the actual dissipation in
>>>the suppressor resistors.
>>
>>?   Indeed, which is why I wrote "Calculating Suppressor Resistor 
>>Dissipation ..." (March, 1989, *QST*). 
>
>Did you take into account the fact that resistor dissipation goes down 
>with increasing temperature?
>
?  This is clearly not the case.  Resistor dissipation is a function of 
resistance and current squared.   


Rich...

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


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