0A2WA @ The Valve Museum

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0A2WA

Sensibly equivalent^¶ to:

1210 6626 CV4020 M8223 QS1210

See also:

English Electric 0A2WA Advert

Extras ▼

Unknown G8LSD Valve Collection

The 0A2WA or OA2WA shows the final design format of the valve voltage stabiliser. The 0A2WA would strike at 165 volts and the regulation would be 5 Volts for changes in current of 5 - 30 mA.

The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 55 mm tall.

References: Data-sheet & ¹⁰⁴⁰. Type 0A2WA was first introduced in 1955. See also 1955 adverts.

Pin Connections

B7G	1	2	3	4	5	6	7
	a	k	ic	k	a	ic	k

Absolute Maximum Operating Conditions^¶

Stabiliser	Va	mAa
	150	30

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated September 16, 2020.

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