This circuit from the 80's makes use of two transconductance operationals of the time. Modern equivalents can be used. The circuit does not need to be powered by a symmetrical source.
Molex discrete wiring and cabling solutions with applications in consumer electronics, commercial...
This circuit consists in a full-wave bridge rectifier or Graetz Bridge as its is also called. The...
This circuit is used to convert audio signals from na amplifier into infrared modulated signals....