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    This wireless headphones transmitter assures a quality reception over 2 meters. The oscillator frequency is between 1750KHz and 3500KHz and for antenna we use a ferrite bar. IC1 amplifies the audio signal and TC1 is a buffer. D1 signals that the transmitter is on and is a voltage stabilizer for the oscillator .

    L1 is a toroidal core T50-2 with 80 turns, 0.2mm Ø. L2 requires a 10-20cm ferrite bar, L2a has 3 turns, 0.6mm Ø coiled at ground end of L2b wich has 30 turns, 0.5mm Ø .
    The current consumption of the wireless transmitter is <= 150mA and is to be used with this wireless headphones receiver.

    Wireless headphones transmitter schematic

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    15 Responses to "Wireless Headphones Transmitter Circuit"

    1. indeed a very good website, especially for the electronic hobbyists all around the world. nice work mahn…keep it up.
      Recently I had seen on of your post on one of the blog regarding wireless power transfer.Iam also doing a similar project in college,but could not progress much.
      So it is my humble request to you to send me ur schematic of 3KW 11Ghz transmitter using quilostron.
      Thank you

    2. Recently I had seen on of your post on one of the blog regarding Wireless headphones transmitter & receiver schematic. Iam also doing a similar project in college,but could not progress much.
      So it is my humble request to you to send me working principle of transmitter & receiver.

    3. i m a b.tech ece final year student … i m in need of a circuit diagram RF wireless cellphone charger ….. plz can anyone help me .hnx….plz plz send me on mail navih4@gmail.com…..i shall be very thankful for this …….plz send me as soon as possible ….

    4. i like this site because it is truly giving a free way to search.

    5. can you help me in explaining about this circuit in detail? i want to understand the process of this circuit. please help me

    6. gambar skemanya mana wireles transmiter nya? plis kirim ke e-mail saya =reycom70@yahoo.co.id

    7. Nice post, I prefer wireless headphones myself.

    8. M.P Chetan says: on February 28, 2012 at 7:31 pm

      Sir, can we more than 150mA source.

    9. I have a hearing aid with earphone having specs 16mm, 32 ohm, 5mW. can I remove the earphone speaker and connect the wires to a audio in of headphone with specs 32 ohm, 150 mW. If not, how to make it work. Please excuse me for my poor electronics knowledge.

    10. Tropicaliano says: on February 15, 2014 at 1:18 pm

      Thank you for an outstanding work. Very useful website. Congratulations.

    11. sir please tell me how many watt resistors should be selected.and how to decide the power of restores require.

    12. Naveen Kulkarni says: on March 4, 2014 at 4:56 am

      Great circuit design and explanation. Useful for DIY hobbyists.

      Thanks for sharing this.

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