[Milsurplus] 2A3H vacuum tube

Mike Feher n4fs at eozinc.com
Tue Dec 7 11:42:32 EST 2021


Hi Bob – 

 

This would be a good question to ask on the TCA website tubecollectorsassociation at groups.io <mailto:tubecollectorsassociation at groups.io>  . Hope you are well. 73 – Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

 

From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> On Behalf Of Rj Mattson
Sent: Tuesday, December 7, 2021 11:17 AM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] 2A3H vacuum tube

 

I have two 2A3 vacuum tubes designated 2A3H.

The 2A3H has the same pin-out but has an indirect heated cathode.

Were these made for some special military application?

Be well de

bob...w2ami x wn2ami 1962

 

 

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