anybody help, telephone amplifier

Discussion in 'The Projects Forum' started by newtoallthis, Dec 6, 2008.

  1. newtoallthis

    Thread Starter New Member

    Nov 20, 2008
    6
    0
    Hi Guys,

    Back again after more help sorry...

    One of the students I'm working with wants to make an amplifier for his landline at home because his dad's hearing impaired.

    Anyone got any ideas how I can make a 'normal' landline telephone into one that has a bit louder volume in the earpiece?

    Any ideas/pointers/circuit diagrams gratefully received.

    Thanks
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    A long time ago there where pieces for sale that could be mounted on the earpiece of the phonehorn.
    In the piece there was a microphone a little amplifier and a speaker in a seperate chamber.
    The Mic picked up the sound the amplifier made it stronger the speaker let you hear it louder.
    There was a knob on the side of the piece to regulate the volume and switch the piece off, to save batteries.

    Greetings,
    Bertus
     
  3. newtoallthis

    Thread Starter New Member

    Nov 20, 2008
    6
    0
    Thanks Bertus, Sounds like a reasonable idea I'll pass your thoughts on.

    Thanks once again...that was a speedy reply ;)
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
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    I always like the suction cup magnetic pickups myself.
     
  5. Audioguru

    New Member

    Dec 20, 2007
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    Most modern phones have a volume control for the earpiece. Buy one.
     
  6. newtoallthis

    Thread Starter New Member

    Nov 20, 2008
    6
    0
    Thanks guys, but I'm working with some students at a local school who need to build circuits and one of them wanted to build an amplifier for his dad's phone...if he buys one he won't pass his course as he has to be seen to make the circuitry (sorry don't know if that's a word :confused:)
     
  7. Wendy

    Moderator

    Mar 24, 2008
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  8. thingmaker3

    Retired Moderator

    May 16, 2005
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  9. newtoallthis

    Thread Starter New Member

    Nov 20, 2008
    6
    0
    Thanks guys! that's a great help
     
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