Found in an Australian documentation from 1991, this circuit was sold in a kit at the time. It is a small FM transmitter with a very common configuration, also found in other projects on this site.
This circuit appears in similar versions elsewhere on this site. The transformer is 110 V or 220 V...
Found in American documentation from the 90s, this circuit makes use of common components. The load must...
We found this circuit in a 1980s Linear Technology documentation. The components are from the...