The circuit presented requires a simple 12 V supply and was suggested by Motorola in its 1990 Linear Databook.
This circuit is from the time when cars used contact breakers. This 80's version measures the dwell...
September 2016 - It can be obtained from Mouser Electronics a kit for developing wireless remote...
This simple solar powered MW receiver was obtained from a 1974 Popular Electronics. The transistor can...