Re: Why Both EAA91 and EB91?
Thinking further on this: the B8-valves are only ever going to have been produced by a few European companies (so can best be disregarded in the greater scope of things).
Is there any evidence of world-market manufacturers [ITT/Brimar/Sylvania/RCA/Tung-Sol/GE/Hytron/Raytheon being examples] ever producing an EAA91?
Or there being military CV- or VT-numbers issued for it?
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