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The EZ35 is a standard HT rectifier for low power AC mains driven equipment in the immediate post WWII period. The output of a centre tapped transformer would be applied to the anodes, the rating given is 325-0-325, the common cathode would be the output for the rectified voltage. A effective series resistance of 350Ω was required to limit surges and the reservoir capacitor had to be restricted to 16 µF. Nothing special and soon replaced by miniature valves of higher specification.

The picture shows the two anodes stacked vertically on the common cathode tube.

The wide glass tube envelope is 28 mm in diameter and, excluding the IO base pins, is 77 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³. Type EZ35 was first introduced in 1946. See also 1946 adverts.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.