A television synchronizing-signal generator

A brief description is given of the British and American television synchronizing-signal waveforms. The essential features of these waveforms and the technical requirements of the generating equipment are indicated. An outline is then given of a selection of typical circuit techniques employed in synchronizing generators. This is followed by a description of an experimental 525-line 25-picture synchronizing-signal generator unit employing equalizing pulses and suitable for negative modulation. Apart from a comparison of the two systems, the paper is based on the American system, and the terminology used is American.