Sensibly equivalent¶ to:
The 6J8G is a triode heptode mixer oscillator designed for stable operation on the broadcast bands including Short Wave.The base cap gives the maker's name , made in USA and that it was a special export type.
The National Union box.
Thanks to Han Bex for sending these images.
The thin glass tube envelope is mm in diameter, and excluding the base pins is mm tall.
References: Datasheet. Type 6J8G was first introduced in 1938.
Absolute Maximum Operating Conditions¶
Updated February 23, 2017. shape:classic construction:pinch type:triode.heptode age:1930.1940 base:io heater:6.3v pins:8 pin:1.- pin:2.h pin:3.a pin:4.g2.g4 pin:5.g1(t) pin:6.a(t) pin:7.h pin:8.k pin:tc.g1