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T2A

Information - Help 
ID = 28830
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Developer: Osram-Valves GB (not MO-Valves) 
Tube type:  Transmitting Triode, air cooled   Text 
  <1925 very rare. ***
Identical to T2A
First year 1917 Saga of the Vacuumtube, Tyne page 230

Base Wires Wires only
Was used by Military and/or Government
Filament Vf 11.5 Volts / If 2.5 Ampere / Direct
Description

Tri Service use.250 W at 1500 V. Thrower quotes If = 4.7 Amps at 10.8 Volts. First made August 1917. British Navy version NT2A

 
Text in other languages (may differ)
Literature Saga of the Vacuumtube, Tyne   page 228-230
British Radio Valves - The Vintage Years, Thrower   
- - Manufacturers Literature
 

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