The CV2135 is directly equivalent to type 6BR7. It is a carefully designed low internal hum pick-up from the 6.3V AC heater, thus making it unnecessary to provide a DC source of heater current.

See 6BR7 for full details. See also 6059 for the special quality version and CV4006.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 45 mm tall.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	-	g1	k	h	h	s	a	g2	g3

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.15	250	100	-3	2.1	0.6	2.3M	1.25

This exhibit was last updated on 20 March 2005