We found this circuit in a 1982 documentation. It uses a CA3140 or equivalent operational amplifier and does not require a symmetrical source. The output is 1 Vpp wide.
This well-crafted speed game setup for two competitors was found in a 1998 Poptronics. The circuit...
September 2017 - Microchip is making available through Mouser Electronics the ARM Cortex® M +...
This power source with silicon diodes at a time when valves were still used was found in Radio...