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21ATP4A

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ID = 26951
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21ATP4A

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   
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21atp4a_sock.png 21ATP4A: Essential Characteristics
Anonymous 15 Collector

Usage in Models 16= 1955? ; 27= 1956? ; 104= 1957? ; 90= 1957 ; 2= 1958? ; 1= 1959?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):240
 

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