This simple circuit causes an LED to flash at times whose active cycle is determined by C1 and C2. Transistors can be BC548.
The purpose of the practical circuit shown in the figure is to generate a pulse of programmed...
The LM1468L can also be used. The circuit is from Motorola's Linear Interface ICs and the...
We found this circuit in the January 1970 issue of Radio Electronics magazine. The transistors are general...