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Darlington Triplet as a high gain amplifier and touch sensor!

Johnson Francis | October 2, 2024 | Amateur Radio (Ham Radio) | No Comments


Three BC547 transistors are being used in a Darlington Triplet configuration to produce a high gain amplifier which can detect the tiny static electric charge on your finger and switch on the LED. Circuit modified from that at: https://www.instructables.com/Ten-Breadboard-Projects-For-Beginners/

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Author: Johnson Francis, VU2JO Amateur Radio Operator

Initial posts are at: https://johnsonfrancis.org/

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