DU10 Mullard original box directly heated half-wave rectifier

Mullard DU10 boxed £ 125

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Description

The Mullard DU10 is a directly heated half-wave rectifier used in may radio sets and stuff alike.

Balloon shape barium coated with oxide filament.

This valve has 3-pin only being a half-wave rectifier and the base socket is standard one B4.

Tested OK full emission.

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