P220 @ The Valve Museum

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P220

Sensibly equivalent^¶ to:

AR5 CV3620

See also:

H210, HL210, L210 & P220 Advert - Lissen Power Pentode PT225 Advert - The Latest Valves

Extras ▼

Lissen The Communications & Electronics Museum Trust Other P220 exhibits

The P220 is a battery audio output triode. The load impedance is 10 kΩ and the output is 160 mW.

The pinch and electrodes. The filament is oxide coated and a single inverted V.

The dome and etched identification.

The balloon envelope is 42 mm in diameter, and excluding the B4 base pins is 93 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³. Type P220 was first introduced in 1929. See also 1929 adverts.

Pin Connections

B4	1	2	3	4
	a	g1	f	f

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.2	150	-13.5	7.6	4,000	1.75

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated September 14, 2021.

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