The 6C4 triode valve was specified as both an amplifier and an RF power valve. In the latter role it would deliver 5.5 Watts in class C operation. With a very small envelope volume, this would make it ideal for hand portable equipment. In larger apparatus it could deliver enough drive power for much larger PA's.

The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 47 mm tall.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	a	k	h	h	a	g	k

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	mAa	gm	Pdriv	Pout	Pdiss	freq	f.max
	6.3	0.15	250	10.5	2.2	0.35W	5.5W	5W	70	150

Thanks to Frank Philipse for supplying the above datasheet

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