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DV52

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ID = 38166
       
Country:
Germany
Brand: Spanner GmbH, Marken: Delta Valve, Altron, Neo-Delta; Berlin
Tube type:  LOCKED OFF TUBE (CODE 9) - see in Notes   Power/Output 
Identical to DV52
Similar Tubes
Heater different:
  DV52/2 ; DV52/4

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Direct / Battery =
Description

2 parallele Triodensysteme (Wirkung von zwei DV26).
Wurde als DV52/2 und DV52/4 für Kraftverstärker angeboten. Siehe dort.

 
Literature Bastelbriefe der Drahtlosen   1927, H.1
 
delta-valve_dv52.jpg
DV52: Der Radio Amateur Heft 20 / 1926
Rudolf Osterkamp

 


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