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Old 11th Oct 2022, 12:33 pm   #6
cathoderay57
Nonode
 
Join Date: Oct 2017
Location: Bristol, UK.
Posts: 2,358
Default Re: Hmv 650

Thanks for the praise. I have stripped the cabinet and I am currently respraying it. Meantime I looked at the cabinet label and it is a P/1 variant. According to Gary Tempest's article in the BVWS Bulletin Autumn 2010, that dates it to 1936, but I'd have thought that was a bit early for international octal valves. I'm not saying Gary is wrong, and as far as I know IO bases were first introduced by the Americans in 1935 but I would have thought only a limited range of valves would have been produced in the early years. Thoughts? Jerry
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