The diodes are for general use and the transistors also in this Exclusive-OR circuit. The circuit may have the values of the resistors changed to 5 V logic.
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...