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Broadcasting computer audio to FM radio channel. Where to find one?

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HaRuMaN:

Well considering that's like 10 times the cost of an el-cheapo...

knave:

If you do try to hack in a power supply make sure you test the voltage. Many of the wall warts run high without load so a 3V PS could run at 6V or higher.  If you find one that is regulated this should be ok.  I think some cell phone chargers run at 2.8 or 3V those should work.  Hmmm...I wonder if you could take some of the 5V from a USB port? Any way to cut this in half?



BobA:

3 diodes in series with the 5v will cut the voltage down to 3 v.  The diodes have to be able to carry the load of the unit being powered so 1n4001 to 1n4004s work well as they can carry 1 amp.

+5V supply    >|  >|  >|   unit being powered   Gnd or Return

                      0.7 0.7 0.7        2.9V




MinerAl:

Find one of the el-cheapo ones that plug into the car cigarette lighter.  It should be really easy to get 12V (either from your PC or a wall-wart) to run it.

EwJ:

This piqued my interest so i did a quick search.  Found there are some usb-powered fm transmitters out there.  The following are not really 'el-cheapo' though (range from $30 to $90).
Don't know if this helps - just throwin it out there.
As already posted, it would be a cheap hack to a wall adaptor or usb plug or something for what you already have.  New toys are fun though.

LineX

nexxtech
Relatively cheap.  Read the reviews - sounds pretty good.


wholehouse

sww
This SoundWithoutWires one sounds ok for the cash.  See this old info before ordering direct though:
sww_mp3car




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