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HJ22D

Information - Help 
ID = 39351
       
Country:
Japan
Brand: Hitachi Ltd.; Tokyo
Tube type:  Transistor   RF/IF-Stage 
Identical to HJ22D = HJ-22D
Similar Tubes
Normally replaceable-slightly different:
  2N139 ; 2N218 ; AF127 ; HJ-22A ; HJ-22B ; HJ22 ; HJ56 ; HJ61

Base Wires
Filament Solid State
Description PNP germanium alloy transistor intended as AM broadcast oscillator / IF amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
7 x 8 x 4 mm / 0.28 x 0.31 x 0.16 inch
Weight 1 g / 0.04 oz
Literature -- Schematic   
 
hj22d_c_thevenin.jpg
HJ22D: C.Thevenin
Günther Stabe

 
to22_ktt_46.gif
HJ22D
Günther Stabe

 

Usage in Models 1= 1957?? ; 1= 1957 ; 1= 1958? ; 1= 1958 ; 2= 1959 ; 1= 1960??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7

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