This linear oscillator was found in a 1968 publication. The operational amplifier is from that time. Both the FET and the integrated support current equivalents.
In this oscillator a phase shift network formed by C1, C2, C3 and R1, R3, R4 determine the fase...
For inductive loads we have the configuration shown in the figure. Note that the optical coupler...
This circuit was found in the Linear Applications Handbook by National Semiconductor. It uses...