Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 27965
Great Britain (UK)
Brand: Marconi's Wireless Telegraph Co. Ltd.
Tube type:  Triode, vacuum   UHF 
Identical to CV408 = A1714
Similar Tubes
Normally replaceable-slightly different:
Predecessor Tubes VX3052  

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Military and/or Government
Filament Vf 6.3 Volts / If 0.49 Ampere / Indirect / Specified voltage AC/DC

Low noise UHF triode capable of operation as oscillator or amplifier up to 1000MHz. Planar electrodes.

Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   

CV408: Manufacturer's Literature
Emilio Ciardiello
    More ...
a1714_pin_1.png CV408: Manufacturer's Literature
Emilio Ciardiello

Just Qvigstad
CV408: Manufacturer's Literature
Emilio Ciardiello

More ...
Usage in Models 1= 1950??

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

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]