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ID = 11270
United States of America (USA)
Brand: Hytron; Salem (MA)
Developer: Hytron; Salem (MA) 
Tube type:  Vacuum Pentode   Power/Output 
Identical to HY125 = XY2.0
Similar Tubes
Normally replaceable-slightly different:
Other base:

Base Hivac 5 pin 2 of them thick (Codex=Hy)
Was used by Radio/TV-reception etc.
Filament Vf 1.4 Volts / If 0.07 Ampere / Direct / Battery =

Quasi-subminiature 'bantam junior' series audio pentode, 5-pin miniature base. 45V anode voltage, 11.5mW out power on 50K load. Used in microphone pre amplifiers, hearing aids, miniature compact receivers, remote control apparatus, meteorological instruments and sensitive measuring devices.

Dimensions (WHD)
incl. pins / tip
x 62 x 20 mm / x 2.44 x 0.79 inch
Weight 9 g / 0.32 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   Data sheet dated March 1939
HY125: R.O.
Rudolf Osterkamp

HY125: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


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