PM2HL @ The Valve Museum

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PM2HL

Sensibly equivalent^¶ to:

210HL CV1050 HL2K K30C K30D K30K VT50

See also:

The Philips-Mullard (PM) Series

Extras ▼

Mullard G8LSD Valve Collection Other PM2HL exhibits

The PM2HL is an amplifier triode. The electrode Voltages mark it out as a battery valve. The original PM (Philips Mullard) series of valves were oxide cathodes produced by the Azide process.

The top of the metalised envelope carries the Mullard identification. In other versions of this popular valve the lettering appears on the side and the envelope takes on balloon form.

The classic envelope is 34 mm in diameter and, excluding the B4 base pins, is 80 mm tall.

References: Data-sheet & ¹⁰⁴³. Type PM2HL was first introduced in 1938. See also 1938 adverts.

Pin Connections

B4	1	2	3	4
	a	g1	f	f

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.1	135	-1.5	2.2	21,500	1.4

Thanks to Andy Cowley for supplying the above PDF datasheet.

Updated January 08, 2013.

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