From: [email protected] [mailto:[email protected]] On Behalf Of John Roland
Sent: Tuesday, November 28, 2023 5:44 PM
To: [email protected]
Subject: [ham-amplifiers] Need Help with Amp Supply LK500ZC

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Hi Everone,
I've owned this amp about 5 years but used very little. The amp was refurbished (new tubes, and relays) by a guy in north Idaho about 2017, just before I bought it. I have tried to contact him but get no response.

A couple weeks ago in the middle of a QSO I sensed some unusual heat from the amp and noticed the tubes were both cherry red. I shut it down immediately.? I have tuned it up a couple times since and the symptoms reoccur. ? I am (obviously) not an amp guy or much of a technician so I have 2 questions.? 1.? Is this a symptom of something that might be easily confirmed and repaired by me, ? and if not ? 2.?? Is there anyone in the Portland-Seattle-Vancouver BC area I might take it to for repair?

Thanks for any help or ideas
John
W7SWB

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