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DG407/0_4pin

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ID = 87955
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Dual-Grid Tetrode   Frequency converter 
  Ca. 1925 up to 1945 rare.
Identical to DG407/0_4pin
Similar Tubes
Other base:
  DG407/0
Base Europe 4-Pin B4 + side contact Sidecontact.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.07 Ampere / Direct / Battery =
tubeenvdiag_klein_mod_bigr_11~~1.gif
DG407/0_4pin: DRB 55
Wolfgang Holtmann
2_10~~1.png DG407/0_4pin: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad

Collection of

Julius Cordes (D)
 
dg407_0.jpg

 
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