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12D4

Information - Help 
ID = 5349
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Damper, booster, flyback diode   Power-supply 
Identical to 12D4

Base Octal (Int.Octal, IO) K8A, USA 1935
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.6 Ampere / Indirect / Parallel / series AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
  12d4.png
  12D4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
12d4_1.jpg
12D4: Sammlung PR
Peter Roggenhofer † 25.4.18

 
oc60_2.png
12D4: RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
12d4_rca_data_01.png
12D4: original data sheet
Bernd Staginnus


from Just Qvigstad

Usage in Models 93= 1957? ; 5= 1957 ; 40= 1958? ; 52= 1958 ; 3= 1959? ; 18= 1959 ; 1= 1961 ; 2= 1962 ; 1= 1963?? ; 1= 1963

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):216


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