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21ALP4A

Information - Help 
ID = 26937
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21ALP4A

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Literature Essential Characteristics, GE 1973   
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  21alp4_a_television_receiver.png
  21ALP4A: GE essential characteristics
Günter Kudicke
 
21alp4a_sock.png
21ALP4A: Essential Characteristics
Anonymous 15 Collector

 
21alp4a_data_a.png
21ALP4A: Original Sylvania Tubes 1959
Günter Kudicke


Usage in Models 12= 1954 ; 1= 1955?? ; 66= 1955? ; 138= 1955 ; 2= 1956?? ; 866= 1956? ; 145= 1956 ; 57= 1957? ; 24= 1957 ; 3= 1958? ; 25= 1958 ; 5= 1959 ; 2= 1960 ; 3= 1961 ; 1= 1963?? ; 1= 1964?? ; 5= 1965? ; 3= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1359

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