The LM10 is not common today, but the circuit can be adapted to operate with equivalent components. The circuit is from the 1994 Linear Applications Handbook by National Semiconductor.
Found in an Elektor from the 90s, this circuit can be powered directly by the power grid. The...
This counterphase circuit is from a 1973 publication, and can work with mains voltages or 12 V....
This circuit is from an Electronics Now, American magazine from December 1992. The magazine no...