radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

2N138

Information - Help 
ID = 42288
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Transistor   Audio Frequency 
Identical to 2N138
Similar Tubes
Normally replaceable-slightly different:
  AC125

Base Wires
Filament Solid State
Description Material/Aufbau/Pol.: Germanium Flächen PNP;
Form/Case: ~ TO-22;
Daten/electr.data: I F: 1 mA; U F: 6 V; Isp: 6 µA; ß (beta): 140; N: 50 mW; Imax(Ic): 50 mA; Umax(Uce): -12 V; f g(FT): 1.2 MHz; tmax: __ °C.
Varianten: 2N138A, 2N138B = Umax: -30 V. - 
Dimensions (WHD)
incl. pins / tip
5 x 8 x 3 mm / 0.20 x 0.31 x 0.12 inch
Weight 1 g / 0.04 oz
Information source
 
to22_15.gif
2N138: TTT Steidle 1981
Günther Stabe

 

Usage in Models 12= 1956 ; 6= 1957? ; 1= 1959? ; 1= 1960??

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

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]
  
rmXorg