Sensibly equivalent¶ to:
The E80CC is a special quality double triode introduced in 1957. It is ruggedised and designed for long service life. The design purpose was for computing, switching and scaling. The advert states that each triode is of frame grid construction and with a noise factor of 4.6 dB is suitable for RF or IF use. Audio use is also indicated.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 68 mm tall.
Reference: Datasheet. Type E80CC was first introduced in 1957.
Absolute Maximum Operating Conditions¶
Updated October 15, 2016. shape:thin.glass.tube construction:all.glass type:double.triode age:1950.1960 base:b9a heater:6.3v pins:9 pin:1.a(1) pin:2.g1(1) pin:3.k(1) pin:4.h pin:5.h pin:6.a(2) pin:7.g1(2) pin:8.k(2) pin:9.hct