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[Amps] Using door knob caps as padders/blockers

To: <amps@contesting.com>
Subject: [Amps] Using door knob caps as padders/blockers
From: Peter.Chadwick@zarlink.com (Peter Chadwick)
Date: Thu, 23 May 2002 13:43:49 +0100
Rich says:

>The 160m tank padders in the 77SX have high temperature drift and 
>they are used above their current rating.

It is arguable that if the capacitors get hot, they are being used above their
current rating.
The question then arises as to what service the amplifier is intended for - just
like the sweep tube amps are designed for low duty cycle SSB, it is possible to
get away with caps rated for low RF current in a low duty cycle operation. But
then don't even THINK of higher duty cycle modes, such as even compressed SSB,
let alone SSTV, RTTY etc - or even a CW contest.

73

Peter G3RZP



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