Using the 723 integrated circuit, this circuit was found in an article on power supplies in the August 1971 Radio Electronics magazine. The transistor may be the BD136 on a heatsink.
The CA3020 integrated circuit was one of the first commercial types, sold in the 1960s. The...
This circuit generates a linear sawtooth signal with frequency that depends on the capacitor next...
This circuit has a maximum frequency of 10 kHz and a linearity better than 0.01%. The circuit is...