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21ZP4A

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ID = 27070
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21ZP4A

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   
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21zp4a.png 21ZP4A: Essential Characteristics
Anonymous 15 Collector

rm_21zp4a_01.png
21ZP4A: Manufacturer paper
Tomasz Szczesniak

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Usage in Models 1= 1954? ; 2= 1954 ; 4= 1955 ; 26= 1956? ; 1= 1956 ; 4= 1957? ; 1= 1962??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):39
 

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