This filter is intended for 60 Hz noise suppression in amplifiers. We found it in American documentation from the 60s.
This 80s signal follower makes use of an audio amplifier of the era. The circuit can be adapted to...
This circuit makes use of a PLL 567 to invert the phase of a signal, ie to change it from 0 to 180...
We find this circuit in a 2005 Linear Technology manual. The circuit applies to small DC motors...