The CV782 and its commercial twin, the 1R5, are miniature heptode frequency changers. The valve design was for dry battery operation.

The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 46 mm tall.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	f-	a	g2,g4	g1	f-	g3	f+

 
Absolute Maximum Operating Conditions

Heptode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	1.4	0.05	90	45	-0	0.8	1.9	0.8M	0.25

This exhibit was last updated on 12 February 2008