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[Amps] QSK amp switching with a TS-940s

To: <amps@contesting.com>
Subject: [Amps] QSK amp switching with a TS-940s
From: n1rj@pivot.net (Roger D. Johnson)
Date: Mon, 22 Apr 2002 16:24:38 -0400
The relay makes in about 2 ms. However, the actuating voltage
is delayed 3 ms from keydown! My 940 starts making RF at about
5.5 ms after keydown leaving virtually no time for the amp
relay(s) to switch. I also developed a FET switch but drive
it from a waveform that goes positive at keydown. It works
very well with my QSK modified Drake L-7.

73, Roger


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