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20HP4

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ID = 23231
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 20HP4

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   

20hp4_sock.png 20HP4: Essential Characteristics
Anonymous 15 Collector

Usage in Models 23= 1952? ; 1= 1953 ; 3= 1954

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):27
 

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