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 humidity alarm, rain or leakage was found in a 1992 publication. The sensor consists of a printed...
This is a circuit that appears several times in this section and in articles. It is a preamplifier for...
With this circuit it is possible to increase the output voltage of a 7812 regulator. The circuit...