Unknown tube: 7943 = BT145A = TQ 2/3

• To: tesla-at-pupman-dot-com
• Subject: Unknown tube: 7943 = BT145A = TQ 2/3
• From: Kristian Ukkonen <kukkonen-at-cc.hut.fi> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Thu, 19 Nov 1998 19:51:47 -0700
• Approved: terryf-at-verinet-dot-com

Hello,

I found some triode-looking tubes for really cheap
price at a army surplus store. However, any 'web
based tube data index didn't recognize the type.
So, anyone out there with the specs? 

This is a 4-pin tube (2*filament, 1*grid, 1*NC, visually),
with anode cap. The text on the tube:

English Electric Valve Co. Ltd.
Made in England
BT 145 A
(TQ 2/3)
7943

I DOES look hefty enough to be a nice tube for building
a tube TC, especially as the price is very reasonable. 
That is, if it is a triode, with reasonable specs.

Thanks!

  Kristian Ukkonen.

• Prev: Re: Terry's GM HEI Coil
• Next: Re: RF resistance of secondary coil
• Index(es):
  • Main
  • Thread