BVWS Bulletin Volume 1, Number 3 (December 1976)
Front cover: The magnetic detector used for transatlantic signalling.
| Page | Title | Summary/Notes |
|---|---|---|
| 2 | Marconi Magnetic Detector. A. R. Constable |
Principles and operation of a magnetic detector. |
| 4 | The 'R' Valve. Philip Beckley |
Description of an early hard vacuum valve. |
| 6 | The Horophone. Jon Hill |
A wall mounted time signal crystal receiver. |
| 7 | G.P.O. Registration Numbers. | An initial list of identified GPO registration numbers. |
| 10 | A Braille Crystal Set. Jon Hill |
The British Wireless for the Blind Fund. |
| 13 | The Marconiphone Valve-Crystal Receiver. A.R.Constable |
One of the first sets available to the public when the B.B.C. Began broadcasting in 1922. |