This is an improved circuit from the earlier version also found in the April 1972 Radio Electronics magazine. The power transistors must be provided with heat sinks.
The great advantage of the circuit shown in the figure is that its frequency is controlled by a...
This interesting configuration was found in a 1965s Electronic Design. It makes use of components of...
This configuration is from an old Motorola publication from the 70s. In it we have the way to...