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.
This configuration can be found at several points in this section. This was obtained in an old...
We find this circuit in American documentation from the 1980s. The accuracy of the circuit depends on the...
We find this circuit in a 1980s documentation. The circuit is for SSB modulation and the...