This dual flasher for high brightness LEDs was found in an American documentation from the 90's. The circuit can be powered by lower voltages with the reduction of R1 and R4.
The integrated circuit used in this project is not common today, but the circuit can be adapted to use a...
This circuit allows frequencies between 1.8 and 30 MHz to pass. Data for the coils is provided next to...
This circuit of starting lights for auto-race was found in an English documentation from the 80's....