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, from an old publication from the 1970s, can be made with silicon transistors like...
We find this circuit in documentation from the 1980s. The triac and diac are of conventional types...
The purpose of this circuit is to convert a short-lived pulse into a negative rectangular pulse. The...