[ARC5] Type-K based equipment dials

[Michael Tauson]

Thus far, I know of phenolic receiver dials (as opposed to control box
dials) on receivers made in 1943 by Colonial.  Were there others?

Also, on the control box dials, some are luminous and some aren't.
Who used what when?

Thank you.

Best regards,

Michael, WH7HG
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