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FP-400

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ID = 36222
       
Country:
United States of America (USA)
Brand: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  SPECIAL TUBE, other or unknown   Indication 
Identical to FP-400

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Technology / Measurement
Filament Vf 4 Volts / If 2.25 Ampere / Direct
Description

Pure tungsten filament in a coaxial cylindrical, zirconium coated nickel anode. The diode was intended as classroom demo, for laboratory studies on high-vacuum electric conduction phenomena, as:
- Limitation of current by space charge.
- Relation between temperature and electron emission.
- The effect of magnetic fields on electronic current.

 
Information source - - Manufacturers Literature   
Tube Lore (II)   p. 213
Tube Lore (I)

fp400_pin.png FP-400: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
fp400_1.png
FP-400: Manufacturer's Literature
Emilio Ciardiello

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Collection of

 
20200430_204605.jpg

FP-400
 

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