- Item type
- Object
- Makers
- Marconiphone
- Provenance
- Not ascertained
- 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".
- Object type
- Radio communication
- Dimensions
- Height: 220mm Width: 200mm Depth: 195mm
- Inventory No
- 50683
Description
Polished mahogany box with lid, for a single valve with at side a sliding resistance filament control. Nickel-plated fittings.
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