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NR41_EN

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ID = 20038
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to NR41_EN = CV1083 = 3795 = VP21

Base British-7-Pin, old (M7A) Top contact with a cap.
Was used by Military and/or Government
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Description

This tube is a variable mu type, made for the British Navy.

 
Information source Babani, International Radio Tube Encyclopaedia   p. 122 & 123
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   p. 55
Taschenbuch zum Röhren-Codex 1948/49

210vpt_1.png NR41_EN: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
Usage in Models 1= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of

 
20200616_205245.jpg

 

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