Found in a 1968 American documentation, this circuit generates sawtooth signals whose rise and fall times are determined by C1 and C2. Transistors support modern equivalents.
This car alarm was found in a 1965 General Electric manual. The SCR can be commonly used with the...
This voltage regulator was obtained in the SGS manual of linear integrated circuits of 1982. The...
We found this circuit in a 1974 documentation. The NPN transistor can be the BD135 and the PNP the...