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DC 9v replacement

Discussion in 'Power Electronics' started by Cheeks, Jun 19, 2019.

  1. Cheeks

    Cheeks

    6
    0
    Jun 19, 2019
    I started doing this a few years back as well. Very smart... unfortunately, this speaker is very old (before I got smart about cords) but works well and is worth $10 to have some direct power.
     
  2. Cheeks

    Cheeks

    6
    0
    Jun 19, 2019
    It has a large speaker near the bottom and a small (tweeter?) near the top. Both are round.
     
  3. Cheeks

    Cheeks

    6
    0
    Jun 19, 2019
  4. Audioguru

    Audioguru

    2,515
    562
    Sep 24, 2016
    We are guessing about the type of circuit the speaker's amplifier uses. The type of circuit plus the unknown speaker impedance determines how much current the power supply must produce.

    Buy then try the cheap Chinese power supply set for 9V. If it smokes and burns then buy another one that produces more current.
     
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