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.
This circuit was found in a 1980s telecommunications publication. The circuit uses a diode bridge to...
This circuit is from an English magazine from 1980, but it can be easily assembled with more...
The indicated circuit is an intermittent one in which we use two 555 integrated ones, one as a low...