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21ZP4B

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ID = 27071
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21ZP4B

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   
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21zp4b.png 21ZP4B: Essential Characteristics
Anonymous 15 Collector

i_fivre_21zp4b_caratteristiche.png
21ZP4B: My schematic collection.
Pier Antonio Aluffi

Usage in Models 1= 1954? ; 22= 1955? ; 30= 1955 ; 1= 1956?? ; 74= 1956? ; 2= 1956 ; 2= 1957? ; 4= 1958? ; 5= 1958

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):141
 

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