6CW7 @ The Valve Museum

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6CW7

Sensibly equivalent^¶ to:

6L16 ECC84

See also:

Valves and their Habits

Extras ▼

Mullard Valves Donated by Chris Huggett

The ECC84 is a VHF double triode. On this British Made example from Mullard is also the second Type designation of 6CW7.

Apart from the heater it is electrically equivalent to the PCC84. The ECC84 was designed as a cascode low noise RF amplifier.

The small triode sections within the envelope.

One triode showing the grid with the dark screen in the foreground.

Another view.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.

References: data-sheet & ¹⁰⁴⁰

Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	k(2)	g1(2),s(2)	a(2)	h	h	g(1)	k(1)in	k(1)out	a(1)

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.335	90	-1.5	12	4000	6

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated July 16, 2020.

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