This flasher or light pulsator can be used in an ordinary flashlight. The circuit can be adapted to use a lamp instead of an LED. Transistors support equivalents. C1 determines the frequency range.
The circuit shown in the figure differs from the previous one (CIR8909) in that it can be...
The LM2904 is not very common today, but common comparators and operationals can be used in the...
We found this circuit in the December 1994 Electronics Now magazine. The worthless components are...