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 simple circuit with bipolar transistors is from a 1970s American documentation. The RF...
This circuit is from a Linear Technology integrated circuit manual from the 1990s. The circuit...
CTS IoT Quartz Crystals Available through Mouser Electronics, CTS quartz crystals are especially suited...