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25DK4

Information - Help 
ID = 5691
       
 
   
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to 25DK4

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 25 Volts / If 0.15 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
 
25dk4gep2s.jpg
25DK4: Collection Patrice ZEISSLOFF
Patrice Zeissloff

 
35w4_so~~1.png
25DK4: ARRL Handbook 1972
Michael Schlör

 

from Just Qvigstad

Usage in Models 3= 1960? ; 1= 1962?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4


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