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Headset boost

Discussion in 'Electronic Design' started by Daniel Inston, Nov 20, 2003.

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  1. I've attacked an old cordless phone and wired in a headset so that I can use
    it hands free. I simply disconnected the phones mic and speaker and wored
    them up to a headset socket.
    While the mic works well; other party can hear me, I find that the earpiece
    of the headset, even with the volume up loud is not quite enough if there is
    any background noise.
    So what I want to do is boost the phones speaker volume (maybe double)
    slightly so that the
    volume control on the headset has some range to it. I thought that a garden
    variety transistor might do it, along with a resistor or two.
    Problem is - I dont know how - I can only follow instructions when it comes
    to this sort of thing - so I am hoping that someone here will provide some
    help. Both the handset speaker and the headset speaker are in the vicinity
    of 33-35 ohms

    Thanks in advance.
    Daniel Inston
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