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The 22V/310A F is a mercury vapour rectifier. It can be used for full wave rectification or the two sections can be used in parallel.

The anodes are the normal rounded rectangles.

The filaments are oxide coated ribbon and tension is maintained by a spring arm.

The classic envelope is 54 mm in diameter, and excluding the UX4 base pins is 126 mm tall.

Reference: Data-sheet. Type 22V/310A/F was first introduced in 1939. See also 1939 adverts.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.