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ID = 17875
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to VT-281 = HY115
Similar Tubes
Multiple differences or of other kind:
  2E28 ; HY145ZT

Base Hivac 5 pin 2 of them thick
Filament Vf 1.4 Volts / If 0.07 Ampere / Direct

VT code for Hytron HY115 audio pentode. Cancelled, no known use.

Information source Taschenbuch zum Röhren-Codex 1948/49   
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