The 6L6G is is a larger more powerful audio beam tetrode than the 6V6 receiver type. This was used for audio amplifiers and modulators for small Amplitude Modulated transmitters.

The construction is of a traditional flat cathode with a zig-zag grid supported on notched rods surrounding the cathode. The beam plates are vertical '[' shaped sections to the edges of the grid assembly. The anode is an open vertical box that encloses the rest of the electrodes.

The classic envelope is 49 mm in diameter and, excluding the IO base pins, is 114 mm tall.

 
Pin Connections

IO	1	2	3	4	5	6	7	8
	m	h	a	g2	g1	nc	h	k

 
Absolute Maximum Operating Conditions

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	6.3	0.9	350	250	-18	54	2.5	33K	5.2	11W	15%

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 08 June 2007 {find valves by name}