In this 6J5GT/G triode the electrode assembly is formed on a small glass pinch. The envelope is a glass tube the width of the octal base. The anode plates are formed to leave an oval cavity for the grid and cathode.

The museum has examples of this valve in the classic G version (6J5G)and the WW2 metal envelopes (6J5).

See our article on the dissection ofthe metal version.

The electrical characteristics of each half of the 6SN7 match those of the 6J5.

The wide glass tube envelope is 29 mm diameter and excluding the IO base pins measures 67 mm long.

 
Pin Connections

IO	1	2	3	4	5	6	7	8
	m	h	a	nc	g	nc	h	k

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.3	250	-8	9	7.7K	2.6

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 04 July 2007 {find valves by name}