Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 30745
Great Britain (UK)
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to VT25 = AT35 = CV1025 = 10E/7312 = DET25

Base L4 British large 4 pin (1922, LG4)
Filament Vf 7.5 Volts / If 2.2 Ampere / Direct

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 with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]