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Steve, I have (somewhere) internet pictures of new production 12AP4-like tubes from a decade ago, made by Thomson before they ditched RCA operations. Any idea who they were for? I believe the photos were taken in a restorer's home.
[QUOTE=Steve McVoy;3095978] Most tubes can be rebuilt successfully without re-phosphoring. Hawkeye produced high quality rebuilds while they were in business.
In some cases re-phosphoring is required. For instance, here we had some radar tubes (with P7 phosphors) rebuilt for TV use:
Last edited by Einar72; 02-18-2014 at 09:01 PM.
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