The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. Some of the components are not currently common and should be looked for equivalents.
This circuit was obtained from Linear Technology's own component manual of the 1990s. The circuit...
This circuit drives a load with a delay given by the RC timing components. The circuit is from...
This commercial radio from Iwata Electronics was manufactured in Japan in the 1960s. The circuit uses...