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VT10_GPO

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ID = 33157
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Developer: Marconi's Wireless Telegraph Co. Ltd. 
Tube type:  Transmitting Triode, air cooled   Text 
  <1925 very rare. ***
Identical to VT10_GPO = MT4 = CV1610

Base Wires Wires only.
Was used by Telephony
Filament Vf 12.5 Volts / If 6.3 Ampere / Direct / Specified voltage AC/DC
Description

Telephony Use. 200W plate power dissipation, 10KV max anode voltage, 1.5MHz max frequency. Originally designed my MOV for radio transmission by the British Post Office. Used at the Lands End Radio Station. Production of 417 MO valves first made in 1921.

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

 

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