This circuit generates pulses whose frequency depends on C1. The circuit can be powered by voltages from 5 to 15 V. We find this configuration in a Signetics manual.
Other operational amplifiers of the same the series, such as the MC34072, MC34074, MC35071,...
This circuit is from documentation from 1965. However, it can be created with modern transistors. Power...
This two-transistor delay circuit from the 1960s was found in documentation from the time....