The HP210 is a screened amplifier pentode was designed for radio use, probably as an RF or IF amplifier in a broadcast receiver. It is directly heated and was designed for use with battery supplies for both HT and LT. The HP210 was made in two forms one with a B4 base and the other with a B7 base. The B7 base itself was introduced in 1933.

The classic envelope is 43 mm in diameter and, excluding the B7 base pins, is 108 mm tall.

 
Pin Connections

B7	1	2	3	4	5	6	7	tc
	m	g1	g3	f	f	-	g2	a

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	2.0	0.12	150	150	-1.5	1.9	0.7	2.5M	1.9

This exhibit was last updated on 02 December 2007