The EABC80 is a triple diode triode. The triode and two diodes share a common cathode but one diode has a separate cathode.
The EABC80 was specifically designed (1954) for use in the detector stage of early FM and FM/AM radios. The triode section providing the first audio amplification, the single diode and one of the diode pair were used as an FM detector in a ratio detector circuit. The other diode in the pair being used as the AM detector when that part of the circuit was required.
PRICE IS FOR ONE TUBE
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