This old two-stage video amplifier uses integrated circuits that are not easily obtainable today. The circuit is for analog video and was found in an American 1980s documentation.
This simple intercom for home use was found in a 1979 publication. It can be easily mounted with...
This circuit was obtained from American documentation from the 1990s. The transformer can be a car...
This wired intercom circuit was found in an English publication from the 80's. The integrated...