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DDT13

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ID = 14082
       
Country:
Europe
Brand:
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to DDT13
Similar Tubes
Normally replaceable-slightly different:
  DTU1
Other base:
  CBC1
Base British-7-Pin, old (M7A) (Codex=Nb) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
523_2.png DDT13: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		ddt13_characteristics.png
DDT13: My schematic collection.
Pier Antonio Aluffi
Usage in Models 7= 1936 ; 1= 1937
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8

Collection of

Roddie Rankin (GB)
 
1a6c7568_25da_4e93_9ff6_230ee5123155.jpeg

 
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