BVWS Bulletin Volume 6, Number 3 (December 1981)
Front cover: A selection of valves by Radion and H.J.Round.
|35||Valve Manufacture in Bollington Part 1.
|Radion's and the Pettison Family.|
|37||Some More Early Beginnings in Wireless.
Basil van der Syde
|Experimenting with some crystal receiver circuits.|
|38||Marcus Graham Scroggie: An 80 Birthday Tribute.||Short biography of a prolific technical author whose works include the 'Radio Laboratory Handbook'.|
|42||A Centenary: Henry Joseph Round, 1881-1966.
A. R. Constable
|Biography of a Marconi employee with 117 patents to his name and designer of the 1916 'Q' valve and later 'V24' valve.|
|44||Development of the A.C.Mains Valve Part 1.
|The Marconi / Osram KL1 valve.|
|46||Early Radio – Entertainment At A Price.
|Prices of early radio equipment.|