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Created November 13, 2021
Last modified November 13, 2021
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Description

From a contest (https://www.youtube.com/watch?v=qihOtqwzjxU) where we had to supply a circuit exposing 3 wires and if cutting one of these, nothing happen, but cutting any of the other 2 wires, then the bomb exploses.

This solution requires only 4 components (two resistors and two BJT).

The push-button (normally close) can be used to simulate cutting the wire. You can change the state of the NC push-button to see the effect from the reading on the amperemeter AM1.


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