Re: Re-applying Valve Lettering?
I've seen it done commercially using a small (hand-operated, I seem to recall) roller-transfer machine, a suitable template, and the appropriate heat-resistant paint. It's not a very sophisticated process. Mullard, Brimar et al would have done the same thing but probably a hundred times faster and with quite a lot of motorised machines working in parallel.
Cheers,
GJ
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