This amplifier with gains between 5 and 100 was found in the May 1988 issue of Radio Electronics magazine. The circuit requires a symmetrical power supply.
This converter or inverter uses components that are still common. The transformer is the type...
Found in a 90s Popular Electronics, this sensor operates by infrared reflection. The components are...
Found in a 2005 Linear Technology application manual, this circuit provides outputs from a current...