This flasher circuit consists of an astable multivibrator with the frequencies given by the capacitors. The circuit is from 1965 using light bulbs, but LEDs can be used. Power comes from 4 batteries.
Unlike the previous one, this circuit uses only one resistor in the base polarization. The...
We found this circuit in an English documentation from the 80's. Transistors can be modern...
Found in the August 1970 Radio Electronics magazine, this circuit uses a CA3018 with the trigger...