This sophisticated circuit for the 90s car was found in the 1993 edition of Radio Electronics Special Projects. It uses components that are still common today.
September 2016 - It can be purchased from Mouser Electronics the new antenna tuning circuit from...
This circuit uses a selector switch to select resistors for timings given in seconds. Capacitor C1 can be...
This circuit trips when the input voltage exceeds 13.8 V, which is an important value in the case...