This circuit was found in the September 1997 issue of Electronics Now magazine. The circuit uses two op-amps and includes the symmetrical power supply.
This circuit receives, through a coil, audio signals emitted by another coil connected to the...
This basic circuit for a common phototransistor was found in an Electronics Now from the 90s. The...
Found in a 90s Popular Electronics, this circuit uses components from that time, for a...