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VT19_GPO

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ID = 48333
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Transmitting Triode, air cooled   Text 
  <1925 very rare. ***
Identical to VT19_GPO = CV1612
Similar Tubes
Normally replaceable-slightly different:
  VT9B
Successor Tubes VT21  

Base Wires Wires only.
Was used by Telephony
Filament If 15.5 Ampere / Direct
Description

Double ended glass bulb. 800W plate dissipation, 12.5KV max, 10MHz max frequency. Filament voltage between 14.5 and 16.5V, exact value marked on each tube. First made 1922 and used as a transmitter tube in the British Stonehaven Radio Station. Only 199 made

 
Information source -- Original-techn. papers.   
British Radio Valves - The Vintage Years: 1904-1925   Pages 83 and 133

 

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