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  1. nolram

    pbx/pabx project sites

    hello everyone! i need to search for any pbx/pabx projects in the web, but i could hardly find any...i need ur help, pls help me find web links to projects that i can try...thanks.  :D
  2. nolram

    automatic audio gain control sites???

    good day 2 everyone out there...i need help. I couldn't find very good articles about audio gain control. pls give sites that are helpful. thanks a lot.
  3. nolram

    -48Vdc on telephones

    hello everyone! I want to ask somebody out there to shed light on my questions: Why is it that landline telephone accepts -48Vdc? Why is it
  4. nolram

    phase inversion

    hi there! I just want to ask every1 in this community if do you have any idea why is there a phase inversion of signals in common emitter amplifier configuration? I would be very much glad if u could give links to some tutorials regarding this. Thanks. God bless.
  5. nolram

    help me with this computation

    Good day! I am having a hard time computing the gain of the resistor-switch network of a digital volume control published in electronics-lab.com. The author is unknown. Can anyone shed light on this?
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