Headphone amp power ?

Discussion in 'General Electronics Chat' started by andomando, Jun 3, 2017.

  1. andomando

    Thread Starter New Member

    Jan 23, 2016
    10
    3
    I have a LJM headphone amplifier kit,and i,d like to know what power supply to use with it
    Info;input voltage AC15V-0-AC15.
    Max output voltage +-14V
    Max output cuuent 200ma...load 16-800 ohm.

    Is there a power adaptor i can buy to use with this amp.
    regards
    Andrew
    UK
     
    Philipjamescandole likes this.
  2. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    7,994
    1,351
    You need to search for a 15-0-15v transformer @500mA or 1000mA, for the input voltage of your country, either 120V or 230V AC.
     
  3. coolyyz321

    Member

    Mar 17, 2017
    56
    5
    just look up "center tapped transformer" on google and you should find what you need. Afrotechmods has a great tutorial on transformers, take a look at the video if you want to know about these transformers, helped me my first time,
     
    Philipjamescandole likes this.
  4. AnalogKid

    AAC Fanatic!

    Aug 1, 2013
    7,761
    2,183
    Finding a plug-in power supply with a center-tapped AC output will be difficult. Most likely you will need a transformer and a line cord. The transformer secondary rating should be 30 VCT (30 volts, center-tapped) but anything in the 28 to 33 V range will work. 500 mA (1/2 amp) or more is fine.

    Please post a link to the kit.

    ak
     
    Philipjamescandole likes this.
  5. andomando

    Thread Starter New Member

    Jan 23, 2016
    10
    3
    Thank you all for your answers to my question.I will look into finding item needed.
    The only link i have is; EBAY,STORE=9cn8864
    type in ;NEW LJM P7 SE PREAMP KIT Headphone Amplifier Kit.
    If you type amp kit as above as i have written it, it should come up right away.

    regards to all
     
    Philipjamescandole likes this.
  6. ronv

    AAC Fanatic!

    Nov 12, 2008
    3,719
    2,842
    Philipjamescandole likes this.
  7. andomando

    Thread Starter New Member

    Jan 23, 2016
    10
    3
    Thank you RONV,for this info ,
    regards
     
    ronv likes this.
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