Suggested by General Electric in 1965 documentation, this flasher has a control circuit with a neon-light optic coupler and LDR. The circuit is for incandescent lamps.
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...