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Transistor connection in the discharge path of the 555 timer

  1. Jul 19, 2013 #1
  2. jcsd
  3. Jul 19, 2013 #2


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    Staff: Mentor

    Pin 7 is the discharge pin. C1 seems to charge via the three diodes, and the purpose of T1 and T2 would be to control the discharge. I agree with you, they are around the wrong way to accomplish this.
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