Statophone S50

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, method of detection, and general technical refinement.

Statophone Model S50

• The S50 was a three-valve receiver with a crystal detector acting as the main detector stage, a transitional design retaining crystal practice even as valve detectors were becoming standard.
• Housed in a compact mahogany cabinet intended for table use in a living room or drawing room, the set had a built-in electrostatic loudspeaker at the front, protected by a fine-mesh grille.
• Two interchangeable coil slabs were supplied, one for the medium-wave broadcast band and another for long-wave reception, including Daventry.
• Simplicity of operation was emphasised, but performance was limited by the crystal stage, making the S50 less refined than its valve-based successor.
• Audio was reproduced via an electrostatic loudspeaker with a metallic diaphragm working on electrostatic attraction, producing clear reproduction at low to moderate volume but prone to distortion with stronger signals.

Here you find 11 models, 10 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Elwell, C. F., Ltd.; London