This circuit is from the time when cars used contact breakers. This 80's version measures the dwell angle of the contact breaker for dwell adjustment using an era integrated circuit, the LM3917.
Using the 4046 PLL we found this circuit in the December 1989 Radio Electronics. The circuit...
This unregulated power supply can be used in a variety of applications, such as powering...
Twin-T oscillator are a good solution for the production of low-frequency sinusoidal signals. The...