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.
I found this circuit in an English magazine from July 1982. The circuit is still viable as all...
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...
This filter rejects the hum of 60 Hz from power grid, being placed between the signal source and...