BVWS Bulletin Volume 18, Number 1 (February 1993)

BVWS BulletinVolume 18, Number 1 (February 1993)

Front cover:  Lauritz Melchoir broadcasting from the Marconi works at Chelmsford in July 1920.

Page Title Summary/Notes
3Broadcasting in 1914.
Pat Leggatt
Transmissions from a Belgian station at Laeken during 1914, including Moretti spark gap and high power microphones.
5John Brown and his S.O.E. Radios.
Pat Hawker
The career of John Brown and his important role in the wartime development of suitcase transmitter-receivers.
9The Mystery of the “AnoDyne”.
Robert Hawes
A revolutionary but short lived high-power valve of the early 1920s.
11A Cheap A.M./F.M. Converter.
Geoffrey Dixon-Nuttall
Re-purposing a scrap transistor radio as a low power A.M. Transmitter.
11The Melody Maker.Follow-up to a previous article with an earlier model from 1927.
12Receiver Techniques of the 1920's Part 6.
Pat Leggatt
Methods for providing volume control.