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ID = 56229
Tube type:  Solid-State-Diode   Detector 
  Late but very rare. ***
Identical to BH30
Similar Tubes
Normally replaceable-slightly different:

Base Wires

Material/Aufbau: Germanium Punktkontakt Diode;
Form/Case: (Steckkontakte);
Daten/ I F: 4 mA; U F: 1 V; I sp: 1 mA; U sp: 30 V; Imax: __ mA; Umax: __ V; Fg (F T): __ MHz; tmax j: __ °C;
Manufactured by PROTON, Planegg (München) ~ 1952 ;
Vorläufer (ab 1950): BH, BN, BN5, BN6; Nachfolger: BN15, BH30, BH60, BH80; Minaturausgaben: BH6, BK60.

Dimensions (WHD)
incl. pins / tip
13 x 4 x mm / 0.51 x 0.16 x inch
Weight 1 g / 0.04 oz
Information source -- Original prospect or advert   PROTON Advertisement 1952


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