Suggested by Linear Technology in an old documentation, this circuit produces 60 Hz rectangular pulses from the power grid. The circuit is free of noise.
The operational amplifiers used in this circuit are old. The circuit is from documentation of the 70's, but...
This configuration similar to many of this site was found in 1965 General Electric documentation. Modern...
This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the...