Statophone S60

The Statophone receivers Models S50 and S60, introduced in 1925–26 by C. F. Elwell Ltd., were compact self-contained table sets with an integrated electrostatic loudspeaker. The two models were closely related in design but differed in the number of valves, detection method, and overall technical refinement.

Statophone Model S60

• The S60 was a more advanced four-valve receiver employing a valve detector instead of a crystal, corresponding to the set reviewed in Modern Wireless (Jan 1926).
• Enclosed in a polished mahogany cabinet, the set was self-contained apart from the aerial and low-tension battery, with two small front doors giving access to the tuning condenser, reaction control, filament switch for three valves, and a separate switch for the fourth valve used for distance reception.
• Larger rear doors permitted inspection of components, while the front electrostatic loudspeaker grille provided unobtrusive integration into the cabinet.
• The set employed interchangeable tuning coil slabs, one covering the British medium-wave broadcasting band and the other long-wave transmissions such as Daventry.
• Tests with Mullard valves (2 HF red ring, DF.A4, DFA1) showed it could receive most B.B.C. stations on a loudspeaker, with sharp resonance and high selectivity, though some overlap of signals (e.g., Bournemouth with 2LO in the background) was observed.
• Reception quality was generally clear, but the electrostatic loudspeaker, while novel, suffered from noticeable rattling when reproducing strong signals..

In questo link sono elencati 11 modelli, di cui 10 con immagini e 1 con schemi.
Elenco delle radio e altri apparecchi della Elwell, C. F., Ltd.; London