Clon C-3850

Perhaps I am beating a dead horse but a tiny little dual rail 317/337 regulator PSU feeding the board externally could be a good thing. Then you can use the holes on the pre board for a CRC filter and ditch the regulators there. This board was one of those kit boards at a local shop in a Ziplock bag with a photocopied schematic for $3.50
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As it stands, the C-3850 PCB is what it is. You can, of course, Frankestein it. During the darkest hours you can always buy perf board and roll your own. Or use tag board and 'air' wire it. That is all the rage these days.

Food for thought. Best of luck whatever you find for a solution. Cheers.
 

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