Polyphase Switch for 'Weameter' Test Set, Mid 20th Century

Subject: Electronic instruments
Item type: Object
Provenance: Presented by the Marconi Corporation in 2003.
Primary inscriptions: AMPS / M / A / L / M / C / L / M / INST / L' 'TEST A / TEST C' 'VOLTS / A / B / C / B / V+ / INST / V'. Brown label attached with 'Polyphase switch / for use with / Weameter test set / 1930' handwritten.
Physical material: Wood; Cable; Rubber; Bakelite?
Object type: Electronic instrument
Dimensions: Height: 159mm Width: 115mm Depth: 134mm Weight: 0.95kg
Inventory No: 12978
Accession Number: 2003-11

Description

This Polyphase Switch is linked to inv. 12797, Weameter Electrical Test Set. It has dovetail joints, with a Bakelite inner surface and turning knobs.