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Thanks Dave,just purchased the amp as part of a silent key estate sale.( no manual or schematics) So far nice amp , looks clean on the scope, haven't tried it on the lower bands yet.
Works much better on 20-80. Can see close to 600 out down there.
250 or less on 10.
Good protection..have to try real hard to hurt them.
Hang on to it as they don't make them any more.
Please advise me to what is a good replacement mic for my SR-497HPC... Answer: 497 is "wired like Cobra", so many choices available. That radio does not need a power mic, so purchase a stock "coffin style" mic with a decent cord, like the ones that Astatic uses. The Superstar DM-507 is my go-to. https://www.ebay.com/itm/3050474478...adANq91JSiEEnz8EGqPJRBloTgEyaVsBoCtoMQAvD_BwE $12.99 + .99 cent shipping.
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