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1. [Amps] keyers heath HD-1410, ham keyer HK5A (score: 1): Author: Dan <n5ar@air-pipe.com>; Date: Wed, 10 Mar 2010 13:06:23 -0800; I picked up these 2 keyers at a ham sale. They seem to work OK, however, the outputs are obviously not a simple open circuit/short circuit like a relay. I assume they are some sort of transistor swit; /archives//html/Amps/2010-03/msg00169.html (6,640 bytes)

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