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ID = 23035
Tube type:  Double Pentode 
Identical to DFF50

Base Loctal-8, B8G (Sylvania, 1938)
Filament Vf 1.4 Volts / If 0.1 Ampere / Direct / Battery =
Information source

dff50_so.png DFF50: rtt
Anonymous 10 Collector

Just Qvigstad
DFF50: Babani 1949-1951 Book2 page 7
Patrice Zeissloff


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