The CV4009 is a special quality version of the CV454. It is a variable μ pentode for use at HF. Most probably as RF amplifiers in radio receivers.

The thin glass tube envelope is 17 mm in diameter and excluding the B7G base pins, is 45 mm long.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	g1	g3-s	h	h	a	g2	k

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	gm
	6.3	0.3	250	100	-1	11	4.4

This exhibit was last updated on 23 December 2006