Integrated signal generator appeared in Radio Electronics magazine in January 1968. The integrated circuits are from the time and the generator produces signals from 5 Hz to 50 kHz.
This variable frequency circuit was found in a Popular Electronics from the 90s. The circuit...
Sawtooth-type waveforms are typically generated by relaxation oscillators with unijunction...
This circuit for 40 V systems was found in a Linear Technology application manual. The circuit...