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Thank You for your follow up photo of the Sigma 5/8 aluminum hubs and wiring.
It helped me know that the DC Ground Coil is 14 GA solid copper and the Coil is 8 turns on a form about 1 inch in diameter.
Thank You Again For Helping Me !
Best Regards,
Orion1160
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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