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VT25

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

Base L4 British large 4 pin
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
Literature Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   
-- Original-techn. papers.
 
mazda_vt25.jpg
VT25: aus ebay, Verkäufer k8pyd
Gottfried Silberhorn

 
da100_11.png
VT25: Manufacturer's Literature
Emilio Ciardiello

 

Usage in Models 3= 1934?

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


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