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17D4

Information - Help 
ID = 5548
       
 
   
Tube type:  Damper, booster, flyback diode 
Identical to 17D4

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 16.8 Volts / If 0.45 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
  17d4.png
  17D4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
17d4g.e.1.jpg
17D4: Colección propia
Marcelino Iniesta Fernandez

More ...
 
oc60_g_8.gif
17D4: RTT Schwandt
Günther Stabe † 19.8.20

 

from Just Qvigstad

Usage in Models 10= 1957? ; 4= 1958? ; 18= 1958 ; 24= 1959? ; 3= 1959 ; 1= 1960?? ; 1= 1961? ; 1= 1964 ; 2= 1966?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):64


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