Unlike the previous one, this circuit is intended for the reception of frequency modulated signals transmitted by the power grid. The circuit is from a Radio Electronics from February 1989.
We found this relaxation oscillator in a 1967 General Electric documentation. The frequency is given...
This circuit was found in the September 1984 issue of Radio Electronics magazine. The circuit has...
Although the BD135 transistor is not specifically for RF applications, some of them can easily...