This circuit is from Ferranti documentation from 1967. The operational is of the time, but the configuration is valid for modern equivalent components, including higher current capacity.
This 200-mW amplifier uses one of the first commercial power transistors. The circuit is from a...
Decade counters, such as the 4017, can be cascaded as sourcing signals with the frequency divided...
We found this circuit in an American 1980s documentation. The circuit uses a piezoelectric transducer...