The VR22 triode is an accumulator heated audio output valve. The output power of 0.18 Watts is very low.

The VR prefix denotes an RAF pre WW2 valve.

The balloon envelope is 39 mm in diameter and, excluding the B4 base pins, is 82 mm tall.

 
Pin Connections

B4	1	2	3	4
	a	g	f	f

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	Pout
	2.0	0.2	150	-4.5	10	4,000	4.0	0.18W

More

This exhibit was last updated on 20 January 2003