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.
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