This circuit of the 80s makes use of an operational one of the time. It can be designed with modern operationals and must use a symmetrical power supply.
This high frequency pulse generator was found in an old American documentation. The circuit makes use...
This small 1 W amplifier uses a Motorola integrated circuit from the 1970s. The integrated circuit...
We found this circuit in a 1966 RCA manual. The integrated circuit is unusual, and the Triac must...