Build the circuit shown. By turning the Potentiometer P1 you realize that the circuit behaves like a ordinary NPN Darlington Pair.
![]() Circuit of Sziklai pair. (Enlarge) Also the gain of the Sziklai pair βS is approximately βS = βT1 × βT2. (See Experiment 17 to derive this formula.) However, the Sziklai pair has another advantage that makes it interesting for applications... |
![]() Circuit diagram of a Sziklai pair. |