Narrow-bandwidth Television Association

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Foreword......by our President

The object of this book is to provide a grounding in the theory and practice of narrow band television of the early Baird era.

A logical path follows through the realms of the transistor, integrated circuits, scanning and synchronising arrangements, and workshop practice. In this way it is expected that the book will be useful to all interested in the subject, particularly as applications have been kept well to the fore.

The problem of synchronism between camera and receiving monitor is explored, firstly by camera and monitor sharing the same scanning disc, then to the advanced method of servo control of the monitor drive motor. For synchronism the Baird cogged wheel is replaced by the opto-fork and the light source of the neon lamp is replaced by LED's.

The section on optics is most useful, as is that of standards parameters for video, 30 or 32 lines, and audio.

The worthy and specialist contributors are sincerely acknowledged; pleasure can be found in study but where practical application is possible, the satisfaction of knowledge becomes a real enjoyment.

Ralph Barrett,
President NBTVA

May 2002

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