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Description
Product sheet reads, "The Eimac 4-65A is a small radiation-cooled transmitting tetrode having a maximum plate-dissipation rating of 65 watts. The plate operates at a red color at maximum dissipation. Short, heavy leads and low interelectrode capacitances contribute to stable efficient operation at high frequencies. Although it is capable of withstanding high plate voltages, the internal geometry of the 4-65A is such that it will deliver relatively high power output at a low plate voltage. The quick-heating filament allows conservation of power during standby periods in mobile applications." For use as radio-frequency power amplifier and oscillator, plate-modulated radio-frequency amplifier, audio-frequency power amplifier and modulator.
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