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DF650

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ID = 20824
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to DF650 = CK538DX = 538DX
Similar Tubes
Normally replaceable-slightly different:
  CK6419
Heater different:
  CK549DX ; DF651

Base Subminiatur (wire-ends, flat) B5A
Filament Vf 0.625 Volts / If 0.015 Ampere / Direct / Battery =
Description Hörgeräte-Röhre 
Tube prices 1 Tube prices (visible for members only)
Information source Röhren-Taschen-Tabelle, (Franzis RTT)   

df_650.png
DF650: Funktechnik 12/54
Egon Strampe

sm9_g.gif DF650: RTT Schwandt
Günther Stabe † 19.8.20

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Just Qvigstad
df650_data1.png
DF650: Funkschau Röhrendokumente
Anonymous 10 Collector

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Usage in Models 3= 1954??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

 
df_650.jpg

DF650
 

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