Found in 969 documentation, this circuit generates sweep signals from 1 Hz to 100 kHz. The components used are from the period, and equivalents can be used.
The presented circuit makes use of operational ones that are not common in the market. More modern...
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...
This circuit, from a 1976 documentation, uses a low power MOSFET that is difficult to obtain, but...