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.
This circuit is from a Harris Semiconductor datasheet from the 80s. However the circuit can be...
This circuit was obtained from an Auguist 1974 Everyday Electronics magazine. The circuit is still...
The JFETs of this old circuit admit modern equivalents and their characteristics determine the maximum...