RT> BA> Because the British have always referred to vacuum tubes as 'valves.'
RT> BA> AFAIK nobody else on the planet does.

RT>Well, let say us South Africans, also suffer that perculiarity, especially
RT>those that grew up in the Eastern Cape. :-))

RT>But then they are all mostly British decendants in that area ... :-)

I suspect any area from the Old British Empire may also use the term
Valves for Vacuum Tubes.
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 þ SLMR 2.1a þ This note from El Cajon California USA