Total posts : 45366
ministerchatt, it is highly unlikely that any of the transmitters you are recommending would be legal in the U.S. (or Canada, for that matter). Output from a legal FM transmitter is typically in the nanowatt range (to achieve the maximum required field strength), not milliwatts or watts. Theoretically, it would be possible to attenuate signals from a much higher power FM transmitter to meet the strict Part 15 regulations, but why bother? You’d have to go to so much trouble that it would be worth it to buy an actual, legal, transmitter.
Corrosion, it does sound like there might be a tuning problem with your Talking House. I had a similar problem in terms of symptions – very poor range – with one of my ProCasters. It turned out to be a bad tuning coil (you tune the ProCaster manually) and Chez Radio fixed it for what I felt was a reasonable fee (as well as upgrading several other components at the same time).