This simple circuit for motors that depends on the MOSFET used was found in the January 1998 Electronics Now magazine. The motor voltage does not need to be the same as the oscillator.
This configuration, which uses a transistorized circuit in the feedback, provides a logarithmic response...
This ultra-simple test circuit is of great use in any electronics bench. The power is supplied by a...
This circuit was found in a 1977 documentation. It limits the voltage from a source using zener...