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When you consider the Darlington pair you realize that the circuit can be regarded as one transistor. This "new" transistor has a base, collector and emitter and is characterized by a high current gain. An example of a Darlington transistor is the BC517. Setting up the circuit shown, you quickly realize that the Darlington transistor BC 517 has very similar characteristics to the Darlington pair. |
Circuit Darlington transistor. |
Circuit with Darlington transistor. (Enlarge) In the next experiments, you build on the Darlington pair with PNP transistors. |
Circuit diagram with Darlington transistor. |
