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ID = 37213
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Transistor   UHF 
Identical to BF311
Similar Tubes
Normally replaceable-slightly different:
  BF173 ; BF197 ; BF199 ; BF224 ; BF271 ; MPS6511 ; SE1001 ; SE5020 ; SE5021 ; SE5023 ; SE5024 ; SE5029 ; SE5030 ; SE5031 ; SF245
Other base and data slightly different:
  BF125 ; BF168 ; MF500

Base Wires
Filament Solid State
Description NPN silicon transistor intended as IF amplifier in TV applications.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
5 x 5 x 4 mm / 0.20 x 0.20 x 0.16 inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   TTT Steidle 1981, TVT 1979/80
  BF311: Telefunken Ch 709
Egon Strampe
BF311: Eig. Samml.
Egon Strampe

BF311: TTT Steidle 1981
Günther Stabe

BF311: Telefunken Taschenbuch 1971
Heinz Höger

Usage in Models 1= 1968 ; 2= 1969 ; 1= 1970 ; 1= 1974

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

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