Good morning. Does anyone have any experience using a K3S to drive a Heath SB-220 linear amplifier? This is a 40-odd year-old amplifier with two Eimac 3-500Z tubes. My questions are: (1) What connections need to be made between the K3S and the SB-220; how much drive is likely needed; and what would be needed to run full break-in on CW? The SB-220 does not have its own break-in circuitry, but there are numerous vacuum relay-based modifications out there.
(And yes, I do have a KPA500 that I expect to use most of the time. I just want to be able to switch over to the SB-220, which provides far more power output.) Thanks. 73, Bob, W3RQ Takoma Park, Maryland K3, P3, KPA500, KAT500 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
