PocketMatrix

Funny, I just bought one at best buy yesterday because I wanted to use my MP3 player in my car. Anywho, just buy one. They're 25 bucks at best buy and they even charge your device.

I've seen them as cheap as $16 online as I was looking at different circuit designs for FM transmitters, but the idea really was to "roll my own" so to speak. It's not that $25 isn't a bad price, I'm really just looking for an excuse to buy a lot of electronic components and play with them. Since I've found so so many different schematics for transmitters, I was hoping that some electrical engineer would be able to comment on what would be best for my purposes, or better yet, had done it before and put up a how-to webpage.


To the guy who thought the "audio signal" was something other than electrical current: think about that for a minute. Ok. Thanks.

You could go to radio shack and buy a kit for a little transmitter. it only costs a couple bucks. The transmitter is about an inch long and half an inch wide. It does not have the headphone jack on it, but you might be able to put one on if you don't put the little microphone on it. You have to know how to solder which means you need a soldering iron. I don't know if radioshack still has them.

Good Luck.