Tube history 45, 2A3

triode · 1257

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Offline triode

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on: August 22, 2017, 01:28:24 AM
Hi guys

I just curious on the tube history, could not find in Google : when was production of 45 tube stopped ? How about 2A3?
Of course I'm not referring to the new production (Chinese and Russian)

I have some stash of 45 tubes but could not figure out the production date.

Thanks


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