The figure shows how to couple two TTL circuits using an optical coupler to obtain isolation. The circuit is shown in the August 1992 issue of Radio Electronics magazine.
This is a typical amplifier circuit for a commercial tape recorder from 1968. The circuit has an...
This circuit functions as a variable capacitor controlled by a potentiometer, multiplying the...
This differentiator for the positive front of the input signal can be elaborated based on any...