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DF668

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ID = 20457
       
Country:
Germany
Brand: Röhrenwerk "Anna Seghers" Neuhaus a.R., VEB (RWN)
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to DF668 = 1AD4

Base Subminiatur (wire-ends, flat) B5A
Filament Vf 1.25 Volts / If 0.1 Ampere / Direct / Battery =
Tube prices 1 Tube prices (visible for members only)
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   
 
df668.jpg
DF668: Ebay-Verk. 89149 ArtNr: 170582731474
Günther Stabe † 19.8.20

 
sm74_g_3.gif
DF668: RTT Schwandt
Günther Stabe † 19.8.20

 
df668_spec.png
DF668: RFT-Empfängerröhren, 1961
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 2= 1958?? ; 1= 1959 ; 1= 1960? ; 1= 1962?? ; 2= 1963

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7


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