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Or "Inrad", formerly International Radio model number 2011 was probably the most widely-sold version. Their web site has said "out of stock" on that one for a few years now.
You'll have to either buy a used one. Both my 101b and my E have them. I had to mod the mode selection on my E because the previous owner never did the mod.
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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