Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 46688
Brand: Hitachi Ltd.; Tokyo
Tube type:  Transistor   Audio Frequency 
Identical to 2SB74
Similar Tubes
Normally replaceable-slightly different:
  2SB54 ; 2SB56 ; AC125 ; AC126 ; AC151
Predecessor Tubes 2S148  

Base Wires
Description Material/Aufbau/Pol.: Germanium Legierung PNP;
Form/Case: TO-1;
Daten/ I F: 1 mA; U S: 0.3 V; Isp: <14 µA; ß (beta): 48; N: 80 mW; Imax(Ic): 15 mA; Umax(Uce): -16 V; f g(FT): 2 MHz; tmax j: 75 °C.
Dimensions (WHD)
incl. pins / tip
6 x 10 x mm / 0.24 x 0.39 x inch
Weight 1 g / 0.04 oz
Information source

to1_ttt_259.gif 2SB74: TTT Steidle 1981
Günther Stabe † 19.8.20

Usage in Models 1= 1959 ; 1= 1960 ; 3= 1961 ; 1= 1964

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of



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