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  1. enzo1

    schmitt trigger switch..need help

    thank's a lot..
  2. enzo1

    schmitt trigger switch..need help

    hi. i need to ask any guys out there. let's put it this way..i need to construct a circuit with only one BJT, one OPAMP and a single power supply where this schmitt trigger will then detect input signal between range 4V-8V and it will be used to control a relay via a transistor which operate as...
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