Speakers and general electrical question

Discussion in 'General Off-Topic Chat' started by Harsky, Dec 7, 2007.

Dec 7, 2007
  1. Harsky
    OP

    Member Harsky Madmin

    Joined:
    Aug 2, 2004
    Messages:
    5,262
    Country:
    United Kingdom
    So comes another bored day and I rummaged my attic for various stuff to ebay and I came across a cheap toy where pushing various button makes noises from it's mini speaker. Then it stuck me.

    "I know, I'll wire an MP3 player to it"

    Which I did with a junked MP3 player but the problem was that while it was nice to have music blaring out of it's 1990's speakers it was still too quiet so I thought I might as well include an earphone jack. My only question is, is it possible that while the music is blaring out of the speaker, putting a headphone into the jack disables the speakers and redirect the music to the headphones?
     
  2. spinal_cord

    Member spinal_cord Knows his stuff

    Joined:
    Jul 21, 2007
    Messages:
    2,871
    Location:
    somewhere
    Country:
    United Kingdom
    It is usual that the headphone jack will break the speaker connection then the headphones are plugged in. It does this by pushing the connection apart. I think most headphone jacks you buy should do this.
     
  3. Harsky
    OP

    Member Harsky Madmin

    Joined:
    Aug 2, 2004
    Messages:
    5,262
    Country:
    United Kingdom
    Yeah but the headphone jack came from the MP3 player itself which I desoldered. Not sure if it will do the same.
     
  4. FAST6191

    Reporter FAST6191 Techromancer

    pip
    Joined:
    Nov 21, 2005
    Messages:
    21,697
    Country:
    United Kingdom
    It may be a forest for the trees thing but is there something wrong with an SPDT switch stuck along the (speaker) power lead?
     
  5. Harsky
    OP

    Member Harsky Madmin

    Joined:
    Aug 2, 2004
    Messages:
    5,262
    Country:
    United Kingdom
    Whut?
     
  6. FAST6191

    Reporter FAST6191 Techromancer

    pip
    Joined:
    Nov 21, 2005
    Messages:
    21,697
    Country:
    United Kingdom
    I assume there is the usual three wires for the speaker (power, ground and signal with the first two being vital), if you stick a single pole double throw switch across the ground (you could do power but on second thought ground would be better) you can eliminate one of the options with said switch as well as have a crude mute button:

    [​IMG]
     

Share This Page