In the figure we have a good rectangular signals generator with several frequency bands. The circuit is based on old logic but can be implemented with modern equivalents.
We found this circuit in a 1977 Timers Cookbook. The circuit uses common components to divide a 1...
The components of this circuit are not common today, as it was obtained in the Linear Applications...
We found this circuit in 1969 American documentation. FETs admit equivalents, as do transistors. The...