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N.B.1 Radio Valve Amplifier, by Marconiphone, London, c. 1924

preview image for N.B.1 Radio Valve Amplifier, by Marconiphone, London, c. 1924
Inventory Number: 50683
Object Type:
Place Created: London England United Kingdom Europe
Accession Number:
Brief Description: Polished mahogany box with lid, for a single valve with at side a sliding resistance filament control. Nickel-plated fittings.
Primary Inscriptions: Signed: "MARCONIPHONE/ 1 STAGE/ VOICE AMPLIFIER"; BBC stamp; and "G.P.O. REG. No. 3285", and on metal plaque inside box: ""MARCONIPHONE"/ ONE STAGE VOICE AMPLIFIER/ TYPE N.B.1 P.S. No. M 80/ INST No. SK1135 MARCONI'S WIRELESS/ TELEGRAPH Co. Ltd/ LONDON".
Provenance: Not ascertained
Collection Group:
Material(s): Mahogany and nickel plated brass
Dimensions:
Height Width Depth Diameter Unit
220 200 195 mm

Narratives

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