The kit was sold by a company called Ramsay Electronics. It was 1 watt and with the right antenna (which was quite visible on the roof of my friend's house. They lived right at the top of a hill) it did a good job of covering our small town. There was a brief time when we would get word of several house parties all tuning in when we started to play more dance music late at night. There would be requests from people all through the week at school to play this or that, or call a certain number because someone wanted to say something. This time also coincided with the very first MP3s and I was a "Vice President" of an irc "courier" group, so we could get all the latest stuff!
It only lasted one school year and my friends loved the notoriety, but I used to just sit there and day dream about the audio passing through the low and high pass filters that I had been constantly tweaking, and then being modulated and then re amplified before being pushed out. I still get an excited sensation just thinking about it.