so i wanted to build a small fm transmitter in my home to connect to my pc and transmit through out my house to listen on my fm headphones...

well i recently came across one of those FM microphones at a garage sale and was wondering, can i just attach a 3.5mm mono-audio plug to the mic wires and plug that into my pc/mp3 player, or would i need to do something else to it first.

 

Fleabay is full of these things.

 

Check the range first. I think you'll be lucky if it's more than 10' or so. That may not do you much good.

In principle you can use an audio signal instead from a PC or mp3 player to replace the mic input to the transmitter but this will require a schematic or a good photo of the PCB for someone with the know-how to make the substitution.

FWIW, I use a 900MHz headphone transmitter/receiver product that works quite well. The brand is Recoton, I believe.

 

the range is fine reaches everywhere in my home.

ill see about making up a schem for it..