Found in an Electronic Design from 1968 this circuit generates a linear sawtooth signal modulated by an input signal. The transistors are from the era.
The project is from a 1992 publication, but totally current by the components it uses. The LEDs...
The input impedance of the circuit shown in the figure is of the order of 1 M ohms and the output...
This circuit was suggested by General Electric in 1969 documentation. It provides a maximum output of...