This PLL circuit was found in the April 1978 issue of Radio Electronics magazine. The circuit is powered with up to 15 V voltages from a symmetrical source.
The circuit shown in the figure uses a programmable unijunction transistor (PUT) of the BRY39 type...
This circuit generates a 5V rectangular signal. The circuit is suitable for calibrating TTL...
This configuration, explored in other applications of this section and website, was found in a 90s...