The PM24B is a directly heated output pentode capable of some 3.0 Watts output. The PM24B was introduced in 1930.

The type designation and other information is etched into the top of the envelope.

Seen through the dome of the envelope the horizontal electrode assembly can be seen.

The balloon envelope is 57 mm in diameter and, excluding the B5 base pins, is 105 mm tall.

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm
	4.0	01.0	400	300	-40	30.0	-	2.1,

This exhibit was last updated on 02 December 2007