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11 meter amp. Should work on 10 however. Schematic is on CBTricks website. Usually one driving three 8950's. Radio drive should key 150 and swing 300-400 depending on wattmeter and drive. Do not use a high power radio to drive this amp. You'll only ruin the tubes.
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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