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ID = 10111
United States of America (USA)
Brand: Hytron; Salem (MA)
Developer: Hytron; Salem (MA) 
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to HY115 = XW2.0 = VT-281
Similar Tubes
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 plate supply, 58 micromhos transconductance, 300 average ampl. factor. 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 Tube Lore (II)   p. 155
- - Manufacturers Literature   Data sheet dated March 1939
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
HY115: R.O.
Rudolf Osterkamp

HY115: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


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