Mullard DW4/500 rectifier valve. 1525404.15 | National Trust Collections

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Mullard DW4/500 rectifier valve.

Mullard Wireless Service Co Ltd

Lacock Abbey © National Trust / Rod Stowell & Clive James

Category

Photographic technology

Date

Unknown

Materials

Metal, Glass, Plastic

Measurements

125 mm (Height); 50 mm (Diameter)

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Collection

Fox Talbot Museum, Wiltshire

NT 1525404.15

Summary

Mullard DW4/500 rectifier valve. Printed with "BVA" - British Valve Association. Glass and plastic construction.

Provenance

Part of the Fenton Collection. A gift from British Film Institute in 2017. From 1986-1999, part of BFI collection for the Museum of the Moving Image. BFI purchased collection in 1986 from James Fenton's Museum of Photography, Port Erin, Isle of Man 1976-1986.

Makers and roles

Mullard Wireless Service Co Ltd, manufacturer

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Materials

Metal (217462)
Glass (77268)
Plastic (20957)

Category

Photographic technology (4274)

Collection

Fox Talbot Museum, Wiltshire (29836)

Maker

Mullard Wireless Service Co Ltd (4)

Part of a set

See whole item (17)

Object Type

Valve attachment (13)

Record Status

Enhanced