Catalogue
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Marconi Note Magifier Type 227B, by Marconi Company, England, c. 1920
Inventory Number: 76594
Date: c. 1920
Maker Details: Signed by the Marconi International Marine Communication Co. Ltd.
Inscription: "MARCONI I. M. COM. CO LTD / NOTE MAGNIFIER / TYPE 227B INST NO 2290" on ebonite panel.
Size: 335 x 160 x 85 mm (height excluding knobs and terminals)
Materials: Teak, chromium, bakelite?, ebonite.
Other Given Number(s): Christie's 119.
Notes:
Marconi Note Magnifier Type 227B, with single valve plug, off/on switch, bakelite? filament dial, and seven terminals on vertical ebonite panel with chromium-plated fittings in teak case. Terminals are marked "T" (pair), "TELEPHONES" (pair), "+L.T.", "COM-", and "H.T.+". Single valve missing. Previously catalogued with Marconi Receiver Type 226B (Inv. Num. 40124), Marconi Long Wave Panel Type 229B (Inv. Num. 41345) and two associated Radio Valves (Inv. Num.s 88794 & 85569).
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