6A7 @ The Valve Museum

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6A7

Sensibly equivalent^¶ to:

CV1870

See also:

Pentagrid Converters - Some Important British Valves - New Valves - The Miniature Superhet

Extras ▼

Unknown G8LSD Valve Collection Other 6A7 exhibits

The 6A7 is an American Pentagrid converter or heptode mixer. The 6A8 is the same valve electrically but on an IO base. We also have the 6A7E in the museum.

The classic envelope is 36 mm in diameter and, excluding the UX7 base pins, is 98 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³. Type 6A7 was first introduced in 1933. See also 1933 adverts.

Pin Connections

UX7	1	2	3	4	5	6	7	tc
	h	a	g3,g5	g2	g1	k	h	g4

Absolute Maximum Operating Conditions^¶

Heptode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.3	250	100	-3	3.5	2.7	0.36M	0.55

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated May 04, 2023.

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