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ID = 19221
United States of America (USA)
Brand: Eimac (brand name)
Tube type:  Transmitting Tetrode, air cooled   UHF 
Identical to 4CX300A = 8167
Similar Tubes
Different maximum ratings:
Successor Tubes 4CN15A   4CX125C   4CX300Y  

Base SPECIAL TUBEBASE in general
Filament Vf 6 Volts / If 2.85 Ampere

Forced air cooling ceramic tetrode capable of operation up to 500MHz. Breech-block base; special socket required, Eimac SK-200 or equivalent.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
42 x 62 x mm / 1.65 x 2.44 x inch
Weight 95 g / 3.35 oz
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   Raytheon data sheet
4CX300A: K.H.Fischer
Karlheinz Fischer

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Usage in Models 1= 1957

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

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