P2 @ The Valve Museum

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P2

Sensibly equivalent^¶ to:

CV1246

See also:

QPP with Triodes

Extras ▼

Marconi Terry Collard Valve Collection Other P2 exhibits

The Marconi P2 is an battery audio output triode with a two Volt filament made by M-OV.

The Marconi brand is proclaimed via the paper label. The M-OV manufacture is clear from the style of the Type designation in the white ellipse.

The filament is a pair of inverted Vs.

A closer view of the electrodes.

The classic envelope is 41 mm in diameter, and excluding the B4 base pins is 84 mm tall.

References: Data-sheet & ¹⁰⁴³. Type P2 was first introduced in 1930. See also 1930 adverts.

Pin Connections

B4	1	2	3	4
	a	g1	f	f

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	rl	Pout
	2.0	0.2	150	-10.5	19.0	2,150	3.5	4,500	0.3W

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated July 05, 2022.

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