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Description
Cutaway of Eimac 4X150A external-anode tetrode, encased in resin/plastic. "4X150A - D-F Glass Version" etched on outside. According to a 1954 product sheet, this is "a compact power tetrode intended for use as an amplifier, oscillator or frequency multiplier over a wide range of frequencies extending into the UHF region. It is cooled by forced air." Must be used with the Eimac 4X150A Air-System Socket, or a socket providing equivalent air-cooling facilities.
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