Found in an Electronic Design from the 90's, this circuit simulates a 100 W resistor. The power transistor must match the desired current in the load under test.
This circuit was found in a 80s American documentation. The zener diodes determine the points of...
This circuit is from an old manual, but can be easily assembled as the integrated one is still...
In fact, the 556 consists of a double 555, which can be replaced by these integrated ones. The...