- Published in issue 7/1990 on page 0
Infra-red detector I
Almost all households have at least one infra-red remote contral unit, be it for the viode or audio equipment. Unfortunately, it sometimes happens that the contral does not fucntion praperly and it is then difficult to ascertain whether the receiver or sender ts at fault. The detector described here can help by telling us whether the sender works or not.