This TV remote control receiver uses a ratchet system to activate an old drum-type selector to change channels. A common system at the time. The circuit is from a Radio Electronics from February 1961.
This circuit allows the activation of a remote telephone bell made with a common piezoelectric capsule. The...
August 2017 - Bourns Multifuse AEC-Q200 PTC resettable fuses can be obtained from Mouser...
The Toshiba TLP577x series consists of an infrared photo-emitter (IR) and a sensor integrated circuit...