PM24M @ The Valve Museum

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PM24M

Sensibly equivalent^¶ to:

CV1181 PT4 PenA1

See also:

The Philips-Mullard (PM) Series

Extras ▼

Mullard The John Lawrence Collection Other PM24M exhibits

The PM24M is a directly heated output pentode. The valve would have been designed for the audio stages in AC mains broadcast receivers. It has an output of 2.8 Watts and was aimed at single ended use.

The classic envelope is 47 mm in diameter and, excluding the B5 base pins, is 111 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³. Type PM24M was first introduced in 1932. See also 1932 adverts.

Pin Connections

B5	1	2	3	4	5
	a	g1	f-	f+	g2

Absolute Maximum Operating Conditions^¶

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	4.0	1.1	250	250	-17	30	5.6	43k	3.0

Thanks to Andy Cowley for supplying the above PDF datasheet.

Updated October 07, 2020.

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