Suggested by National Semiconductor in documentation from the 90s, this circuit uses a switched regulator of the time. The circuit is suitable for NiCad battery charges.
This circuit is from 1983 documentation. The author shows us an experimental circuit of a siren...
We found this circuit in a 1976 technical documentation, but it can be assembled with modern...
Operating in the FM range, this is one of the many versions of FM transmitter that the reader can...