Meck XB-702 restoration - Videokarma.org TV - Video - Vintage Television & Radio Forums

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Meck XB-702 restoration

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#11

02-06-2022, 06:40 PM

bandersen

RCA 741PCS

Join Date: Mar 2009

Location: Chicago, IL

Posts: 8,814

It makes no difference. That would only shield the cap anyways. The hum gets worse if I put my finger near the 10M resistor for example. They used coax for getting the signal to the volume control, but no shielding afterwards. Seems a little odd.

Grounding the 6AT6 grid completely eliminates the hum.

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