Make your own radio valves

Sorry if this is slightly OT, but this link was gleaned from UKRA and I
was so impressed by the craftmanship that I could not resist sharing it
formatting link
to all on here and thanks for all the advice you gave me last year.
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Very, very, impressive. What was he doing on the big milling machine at the end - tooling-up to make a pair of 813s for the PA?
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Andy Wade
That is well impressive. I wonder what he uses them for though - I mean, he seems to be making a fair few, but I can't see them being commercially viable somehow.
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