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VT25

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ID = 30745
       
Country:
Great Britain (UK)
Brand:
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to VT25 = AT35 = CV1025 = 10E/7312 = DET25
Similar Tubes
Normally replaceable-slightly different:
  4056A

Base L4 British large 4 pin (1922, LG4)
Was used by Transmittertube (Radio)
Filament Vf 7.5 Volts / If 2.2 Ampere / Direct
Description

Pa<36W. L4 Base. Filament current is specified to be within the range from 1 to 3A at 7.5V. 15MHz max operating frequency.
Known manufacturers are MOV and Mazda.
Babani Heater Data is incorrect (6V 1.28A)

 
Dimensions (WHD)
incl. pins / tip
57 x 160 x mm / 2.24 x 6.30 x inch
Weight 136 g / 4.80 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
-- Original-techn. papers.

da100_11.png VT25: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
Usage in Models 3= 1934?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

 
mazda_vt25.jpg

VT25
 

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