BVWS Bulletin Volume 6, Number 2 (September 1981)
Front cover: A 1926 Ducretet five valve superhet.
| Page | Title | Summary/Notes |
|---|---|---|
| 18 | A 1920's Superhet – French Style. Ian E. Higginbottom |
The Ducretet 5 valve 'supermodula' receiver, an early example of a self-oscillating mixer circuit.Includes schematic. |
| 21 | Sullivan Wavemeter No.54. A. R. Constable |
Schematic and description of a circa World War 1 wavemeter. |
| 24 | The Ekco SW86 Receiver. Arthur R.Williams |
An export model for the New Zealand market. |
| 28 | Walters Valve/Crystal Receiver, 1923. D. P. Leggatt |
The “Wemco” No.1 set manufactured by Walters Electrical Manufacturing Co. Ltd. In 1923. |