Hacked Gadgets Forum

April 25, 2011

Micro FM Transmitter

at 11:46 pm. Filed under DIY Hacks, Electronic Hacks


Sean Michael Ragan from Make built this Micro FM Transmitter. If you are looking to get some audio onto the radio over a short distance this project could be for you. The copper layer of the board looks very cool.

“This circuit is commonly credited to Japanese multimedia artist Tetsuo Kogawa. It takes audio input through a 1/4″ phono jack and, constructed as shown, without the optional antenna connections, will broadcast an FM radio signal about 30 feet.”



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5 Responses to “Micro FM Transmitter”

  1. Sean Michael Ragan Says:

    Sweet! Thanks for posting this, Alan!

    Unfortunately I can’t take credit for the PCB art. The one I have is from a kit made by Jim & Kat over at sonodrome.co.uk, and though they’ve released a PDF version of the mask into the public domain, I can’t find any word on what software they used to lay it out. Will ask them, though. Stay tuned.


  2. Sean Michael Ragan Says:

    This per Jim over at Sonodrome:

    “the transmitter was designed using Adobe Illustrator CS4, that’s
    probably why it looks so strange, it was designed before I’d had a
    chance to learn how to use a proper PCB design program, Adobe was the
    only tool I had available at the time 🙂

    I’ve since discovered Linux and I use totally free and open software
    for everything, so now I’m doing circuit design with GEDA PCB- which
    seems to suit my needs, and is a lot faster than using Illustrator!”

  3. Alan Parekh Says:

    Thanks Sean,

    That explains the cool looking pads that I have never seen before.

  4. rocky Says:

    i found a good website expaining a mini bug http://www.arsenous.blogspot.com

  5. Alan Parekh Says:

    Thanks for the link Rocky.

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