M8100 @ The Valve Museum

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M8100

Sensibly equivalent^¶ to:

5654 6096 CV4010

See also:

Mullard Special Quality Valves - General Data - Vibration Resistant Valves Advert

Extras ▼

Mullard The Communications & Electronics Museum Trust Other M8100 exhibits

The M8100 is Mullard's special quality version of the EF95 it is also labelled 5654 demonstrating their direct equivalence.

It is an RF pentode for VHF and above. The build is rugged to allow the valve to operate in conditions where shocks and vibration are present.

The outer grids g3 and g2 are easily seen through the hole in the side of the anode. g1 is just visible close to the cathode.

We have another example with complete dual labelling.

The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 37 mm tall.

References: Data-sheet & ¹⁰⁴⁰. Type M8100 was first introduced in 1960. See also 1960 adverts.

Pin Connections

B7G	1	2	3	4	5	6	7
	g1	k	h	h	a	g2	k

Absolute Maximum Operating Conditions^¶

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.175	180	120	-2	7.7	2.4	0.69M	5.1

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated March 29, 2017.

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