This dimmer for incandescent lamps using triac and an LF7237 IC was found in May 1985 Radio Electronics magazine. The circuit supports extension buttons.
This circuit is from the 70's documentation. We kept the original text of the time. The so-called...
This circuit was found in a Popular Electronics of the 1990s. The sensor is a rotating mechanical...
Found in a 70s documentation, this amplifier employs an uncommon operating system today. The power...