MH41 @ The Valve Museum

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MH41

Sensibly equivalent^¶ to:

41MH AC2/HL CV1505 HLA1

Extras ▼

Marconi The Hampshire Collection Other MH41 exhibits

The MH41 is described as an indirectly heated high slope general purpose triode suitable for detector of AF amplifier service etc.

The Marconi name printed on the zinc screening paint.

The classic envelope is 45 mm in diameter and, excluding the B5 base pins, is 100 mm tall.

References: Data-sheet, Data, ¹⁰⁴⁰ & ¹⁰⁴³. Type MH41 was first introduced in 1933. See also 1933 adverts.

Pin Connections

B5	1	2	3	4	5
	a	g1	h	h	k

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	4.0	1.0	200	-1.5	5.2	13,300	6.0

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated March 07, 2024.

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