BVWS Bulletin Volume 1, Number 2 (September 1976)
Front cover: Three well-known wireless sets from the early 1930's. (Philips 634A, Magnet 33 and Pye Twintriple AC4).
|2||The Milnes High Tension Unit.||A HT supply based on a string of low voltage batteries.|
|3||Philips Superinductance 634A.
John A. Gilles
|Tips for restoring a Philips 634A “Ovaltini” set.|
|6||Concerning the B.B.C. Trademark.
|Two types of trademark on early wireless sets.|
|8||Crystals and Crystal Detectors.
|Biasing crystals and diodes in crystal sets to improve sensitivity.|
|10||Townsent Wavemeter Part 1.||A wavemeter produced by Messres Muirhead & Co designed by Prof. J. S. Townsend.|