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21ALP4

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ID = 26936
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21ALP4

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   
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21alp4_sock.png 21ALP4: Essential Characteristics
Anonymous 15 Collector

i_fivre_21alp4_caratteristiche.png
21ALP4: My schematic collection.
Pier Antonio Aluffi

Usage in Models 12= 1954 ; 63= 1955 ; 20= 1956? ; 26= 1956 ; 1= 1957? ; 13= 1957 ; 2= 1958?? ; 1= 1958? ; 9= 1958 ; 6= 1959 ; 2= 1960?? ; 2= 1960

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):157
 

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