[Boatanchors] tube markings

[J. Forster]

CLIVE COLLINS wrote:

> Good day Gentlemen
>
> Does anyone herein happen to know why manufacturers of tubes didn't mark the type of the tube (6V6, 807 etc etc) in some form on the anode of the device where it would not rub off and still be visible when the tube was thrown away?

Tubes were not junk when they were made. The makers assumed you would have the manuals for the equipment, and would buy nice new tubes in boxes.

FWIW,
-John