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ID = 4939
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Double Triode   VHF 
Identical to 6J6A
Similar Tubes
Other class quality (otherwise equal):
First Source (s)
23.May.1956 : Electron Tube Registration List

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.45 Ampere / Indirect / Specified voltage AND current AC/DC

Similar to 6J6 with controlled heater warm-up time and increased heater-to-cathode insulation, suited for use even in television sets employing 450 mA series-connected heaters.

Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
- - Manufacturers Literature   
6J6A: W. Melichar
Werner Melichar

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6J6A: RCA Reference Book 1968
Michael Schlör

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6J6A: RCA Tube Manual
Peter Hoddow

from Just Qvigstad

Usage in Models 1= 1953?? ; 1= 1962??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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