This variable voltage regulator circuit has a power stage capable of supplying currents up to 1 A. The power transistor must be equipped with a heat sink.
This circuit was found in a 1980s documentation for amateur radio. The circuit is for 9 MHz...
This circuit allows the coding of several relays from coded keys that must be activated, according to...
Although modern integrated versions exist, this 1995 circuit shows a discreet solution with common...