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DF92

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ID = 3874
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to DF92 = 1L4 = CV1758 = 1F2
First year Sep.1949 Philips-Archiv Sept. 1949
First Source (s)
Sep.1949 : Philips Bulletin

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Description

Mullard und USA = 1L4

 
Tube prices 3 Tube prices (visible for members only)
 
df92~~1.jpg
DF92: FC
Frank Cuffe

 
df92_so.png
DF92: rtt
Michael Schlör

 
df92_techdat01.png
DF92: SEL Handbuch 1964
Peter Hoddow


Usage in Models 1= 1950?? ; 2= 1951 ; 3= 1952 ; 1= 1953? ; 1= 1953 ; 4= 1954 ; 2= 1955?? ; 3= 1955 ; 1= 1956?? ; 1= 1956? ; 1= 1957?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):20


Forum contributions about this tube
DF92
Threads: 1 | Posts: 1
Hits: 1803     Replies: 0
DF92 1L4 Sharp Cutoff?
Michael Watterson
20.Feb.14
  1

I think this tube and equivalents is only common in 1950s Military gear, perhaps because it's sharp cut off and thus less AGC range than DF91 ( 1T4). It does "work" in a typical DK91 DF91 DAF91 DL92/DL91/DL94 AM Radio.

 
DF92
End of forum contributions about this tube

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