I'm having trouble setting up a project for your circuit bench. In addition to the component values, it uses integrated circuits of types that no longer exist.
The Circuit Bench section has much more purpose to give ideas, guidance on configurations and in some cases simple circuits that are still current. For the ancients, we always give the approximate date of obtaining it, warning that the components used may no longer be common. In this case, the way the circuit is designed can serve as a basis for an equivalent design with modern components. In many cases, the supply of the older ones with higher voltages can be reduced with more modern components.
