Tristated output to two common Base transistor issue

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  1. - 9th September 2007, 22:46 #31
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    Luciano
    Luciano is offline Senior Member
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    Hi,

    This is the circuit posted by Bruce.

    This version was tested on a breadboard with a microcontroller.
    On the picture you can see the values of the resistors and the
    type of transistors I have used.

    Datasheet of the transistor BC558 (PNP)
    http://www.fairchildsemi.com/ds/BC/BC558.pdf



    Best regards,

    Luciano
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