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HF-300B/25

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ID = 87168
       
Country:
Japan
Brand: Okaya Electric, (Rodan); Tokyo
Developer: Okaya Electric, (Rodan); Tokyo 
Tube type:  Triode, vacuum   Power/Output 
Identical to HF-300B/25
Similar Tubes
Heater different:
  300B

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 3.2 Ampere / Direct
Description

This tube is a power output triode similar to the 300B but with filament voltage doubled and filament amps halved, as compared with the 300B. Made in 1974.

 
Information source -- Collector info (Sammler)   Dawn of Tube Production in Japan - Ohtsuka.

ux_base_standard~~444.png HF-300B/25: Fin Stewart
Fin Stewart


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