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21AMP4

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ID = 26939
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Television picture tube black+white 
Identical to 21AMP4

Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Information source Essential Characteristics, GE 1973   
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21amp4_sock.png 21AMP4: Essential Characteristics
Anonymous 15 Collector

Usage in Models 1= 1958?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

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