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ID = 21278
United States of America (USA)
Brand: Eimac (brand name)
Tube type:  Transmitting Triode, air cooled 
Identical to 327A_Eimac = 3-100G3 = 5C37 = CV2618
Similar Tubes
Different connections:

Base SPECIAL TUBEBASE in general
Filament Vf 10.5 Volts / If 10.7 Ampere / Direct
Description UHF transmitting triode. Four used in ring oscillator circuit of SC-2 pulsed transmitter around 200MHz. Similar to VT-127 but only the grid pins come out from the side. 
Dimensions (WHD)
incl. pins / tip
110 x 170 x mm / 4.33 x 6.69 x inch
Weight 93 g / 3.28 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   

327a_so.png 327A_Eimac: ARRL Handbook 1972
Anonymous 10 Collector

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