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.
Found in a 1965 Electronic Design, this high voltage circuit uses period transistors. Its purpose...
Found in a manufacturer documentation from the 1980s, this circuit supplies currents that depend on...
This variable filter that lets frequencies from 500 Hz to 1500 Hz pass through was found in a...