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[AMPS] Valve Amplifiers and Bad Matches

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Subject: [AMPS] Valve Amplifiers and Bad Matches
From: m.j.willis@rl.ac.uk (Mike Willis)
Date: Fri, 10 Apr 1998 19:59:23 +0100
I have a question regarding the AL80A. What is the maximum VSWR
it can manage (all phases) to compensate for at say 500W output.

Secondly, what is the range of resistance the PI-L output circuit
can match? The reason I ask is that my antenna for HF is not
1:1 across the entire bands it covers (20-15-10) but it is not
so bad either, a 10dB return loss on 10m for example - which is not
so very bad.

I can make up an ATU quite easily, but that is another thing to tune
up every time I QSY.

73 Mike 
Mike Willis
Tel 01235 445492
Fax 01235 446140



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