[Elecraft] [POSSIBLE SPAM] Re: KPA500 / 270V ERR
Dr. William J. Schmidt
bill at wjschmidt.com
Sun Jul 17 21:55:00 EDT 2022
If you check the schematics, the 270V is made/comes from the power supply...
BUT the 60V enable relay (feeds the voltage divider and read on the front
panel) is on the PA board...
-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Andy Durbin
Sent: Sunday, July 17, 2022 7:35 PM
To: elecraft at mailman.qth.net
Subject: [POSSIBLE SPAM] Re: [Elecraft] KPA500 / 270V ERR
"I think it may actually be the other way around... The 60V relay does not
close if 270V is missing?"
Assume 60 V Enable relay K1 is not closed. How would 270 V be produced?
The secondary winding of T1 is open circuit.
Andy, k3wyc
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