- Published in issue 3/1991 on page 36
6.0 MHz TV sound demodulator
Although local low-power repeaters make it possible to receive British TV programmes in some areas on the European Continent, the sound channel is missing when a locally purchased TV set is used. The reason is the difference in the sound subcarrier frequency, which is 6.0 MHz in the UK (PAL system I) and 5.5 MHz (PAL system B) in most Continental countries. Aimed at the many expatriates among our readers, the simple circuit proposed here is used to upgrade existing PAL System-B TV sets with a 6.0 MHz sound channel.