John wrote:
Are any of the BC-221 Frequency Meters of any interest to collectors? I
have a BC-221-O which I no longer use and I'm trying to determine if I
should just put it in the trash. Thanks!

John
That precision tuning capacitor was highly esteemed. Some years ago, a
small company was buying old LM and BC-221 sets just to salvage them for
a product they were manufacturing. Of course, the technology has
changed since them, and PLL frequency control reigns.

--W9NPI