This high-powered battery powered flasher was found in General Electric documentation from the 1980s. The circuit can control loads up to 3 A and has a sensor that triggers it in the absence of light.
The power supply shown in the figure provides voltages between 0 and approximately 15 volts, with...
Another triggered oscillator that we found in the November 1984 Radio Electronics magazine. The...
Found in a 1980s German publication, this circuit tests batteries by type. The circuit is based on a...