I've got a wireless headset for listening to my tv through the headphones, it has an fm transmitter that plugs into my tv/cable-box audio out.
The system works great on batteries, but I would love to be able to plug the transmitter into the outlet so I can just leave it on all the time.
Trouble is, with the transmitter plugged in instead of on batteries, there is a loud AC hum in the sound.
Looking around online, I found a comment from someone who experienced the same thing and fixed it like this:
"I cut into the leads from the power supply and installed an R-C filter consisting of a 2200 microFarad cap and a series 25 Ohm resistor"
Now, I know how to splice wires together - and I'm assuming I can get what I need at radio shack....
But what exactly do I need - is this a single piece, or do I need to get a 2200 microFarad cap and 25 Ohm resistor and put them together somehow?
A brief tutorial on what I need and how to do this would be very helpful!