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4W300B

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ID = 51359
       
Country:
United States of America (USA)
Brand: Eimac (brand name)
Tube type:  Transmitter Tetrode, liquid-cooling   UHF 
Identical to 4W300B = 8249
Predecessor Tubes 4X150A  

Filament Vf 6 Volts / If 2.8 Ampere / Indirect
Description Water-and-air-cooled variant of 4X150A. Rated for 300W plate dissipation, delivers 140W RF out at 500MHz.
Required the Eimac 4X150A/4001 socket. 
Information source -- Original-techn. papers.   Electronics, Junly. 1956, pg 253
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4x150_1.png 4W300B
Emilio Ciardiello

8249_4w300b_01.png
4W300B: Manufacturer's Literature
Emilio Ciardiello

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