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21YP4

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ID = 27065
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21YP4

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   
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21yp4_sock.png 21YP4: Essential Characteristics
Anonymous 15 Collector

rm_21yp4_01.png
21YP4: Manufacturer paper
Tomasz Szczesniak

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Usage in Models 32= 1953? ; 72= 1953 ; 5= 1954? ; 59= 1954 ; 12= 1955?? ; 31= 1955? ; 5= 1955 ; 5= 1956? ; 3= 1959

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):224
 

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