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The CV4057 is a rugged high voltage half wave rectifier. The CV371 was the predecessor to this rectifier and the CV4042 is the same valve but with flying leads.

In operation this valve can withstand a PIV of 5,000 Volts. The maximum reservoir capacitor value is 1.1 µF and a minimum effective series resistance of 4500 Ohms is required. The peak anode current is up to 180 mA.

This was also made with flying leads for direct wiring in to a circuit.

The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins, is 28 mm tall.

References: Datasheet & ¹⁰⁴⁰.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.