This 1968 EC&G circuit generates high voltage pulses for firing a gas LASER of the time. The components are rare nowadays.
This circuit was found in Motorola documentation from the 1980s. PUTs are not common components...
Found in an Electronic Design from the 90s, this circuit does not need sinks for its components. The...
This low-noise circuit was obtained in a 1969 British documentation. The circuit uses components...