radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

DF25

Information - Help 
ID = 426
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to DF25
Similar Tubes
Other base and data slightly different:
  DF25_Miniloktal
First year 1941 -- Collector info (Sammler)
Predecessor Tubes DF21  
Base Loctal-8, B8G (Sylvania, 1938) (Codex=Woq)
Filament Vf 1.2 Volts / If 0.025 Ampere / Direct / Battery =
Tube prices 3 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
df25.png
DF25: Internet
Miguel Angel Trujillo-Rodriguez
111.png DF25: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		df25_spec.png
DF25: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
Usage in Models 1= 1941?? ; 1= 1941? ; 1= 1942? ; 1= 1942 ; 2= 1944? ; 3= 1944 ; 2= 1948 ; 1= 1952
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12

Collection of

Collection of a member from D
Roy Johnson (GB)
Karl - Heinz Bossan (D)
Hermann Fleischanderl (A)
Jacob Roschy (D)
Martin Steyer (D)
Karlheinz Fischer (D)
Valery Gromov (RUS)
 
df25_014r.jpg

DF25
 
You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
Data Compliance More Information