Sensibly equivalent¶ to:
The PABC80 is a triple diode triode specifically designed for the detector stage in AM/FM receivers. This valve is designed to operate in a 300 mA heater chain directly across the mains. The UABC80 differs only in the heater rating, whereas the EABC80 was designed for the higher anode voltage found in designed with transformer derived HT as well as a 6.3 Volt heater.
Normally this valve featured in a ratio detector circuit for FM demodulation and a diode detector for AM as well as the first stage of audio amplification.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 57 mm tall.
References: Datasheet & 1040. Type PABC80 was first introduced in 1952.
Absolute Maximum Operating Conditions¶
Updated February 03, 2013. shape:thin.glass.tube construction:all.glass type:triple.diode.triode age:1950.1960 base:b9a heater:300ma pins:9 pin:1.a(d3) pin:2.a(d2) pin:3.k(d2) pin:4.h pin:5.h pin:6.a(d1) pin:7.k.k(d1).k(d3) pin:8.g1 pin:9.a