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MA23

Information - Help 
ID = 39630
       
Country:
Japan
Brand: Common type Japan tube/semicond.
Tube type:  Transistor   Power/Output 
Identical to MA23
Similar Tubes
Normally replaceable-slightly different:
  MA25

Base Wires
Filament Solid State
Description

PNP germanium transistor intended as stabilizer (used as fast diode) in AF push-pull medium power output stages with complementary germanium NPN/PNP transistors.

 
Text in other languages (may differ)
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 -- Schematic   
  ma23.png
  MA23: National T-22 schematic
Daniel Rosha
 
ma23.jpg
MA23: my tube
Daniel Rosha

More ...
 
to_1_ttt~~32.gif
MA23: TTT Steidle 1981
Günther Stabe † 19.8.20

 
j_ma23.png
MA23: http://www.kevinchant.com/uploads/7/1/0/8/7108231/rg-1a.pdf
Daniel Rosha


Usage in Models 1= 1958?? ; 5= 1958? ; 2= 1958 ; 3= 1959? ; 15= 1960?? ; 15= 1960? ; 8= 1960 ; 7= 1961? ; 10= 1961 ; 4= 1962?? ; 7= 1962? ; 7= 1962 ; 1= 1963?? ; 1= 1963 ; 1= 1964 ; 1= 1965?? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):89


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