Sensibly equivalent¶ to:
The 6Q7GTY is clearly also marked CV589. As the GT stands for glass tubular the Y suffix denotes better RF performance from the base.
This double diode triode was designed for receiver audio use.
The diodes would be for signal and AGC rectification and the triode would act as AGC amplifier or first audio amplifier.
The wide glass tube envelope is 27 mm in diameter and, excluding the IO base pins, is 72 mm tall.
Absolute Maximum Operating Conditions¶
Updated June 03, 2012. shape:wide.glass.tube construction:pinch type:double.diode.triode age:1930.1940 base:io heater:6.3v pins:8 pin:1.m pin:2.h pin:3.a pin:4.a(d2) pin:5.a(d1) pin:6.nc pin:7.h pin:8.k pin:tc.g1