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ID = 4410
Tube type:  Double Triode 
Identical to 4BZ7 = 4BQ7A
Similar Tubes
Heater different:
  5BQ7A ; 6BQ7A ; 6BS8 ; 6BZ7

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 4.2 Volts / If 0.6 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   

4BZ7: corrected version
Roland Langfeld

4bz7_so.png 4BZ7: rtt
Anonymous 10 Collector

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Just Qvigstad
4BZ7: RCA Tube Manual
Peter Hoddow

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Usage in Models 18= 1955? ; 88= 1956? ; 148= 1957? ; 3= 1958?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):257

Collection of



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