Comparing the two sites visually, this one looks neat and well laid out; it would be easy to find what you are looking for, and there is a nice balance between text and image. Also the text is in different sizes to denote levels of importance. The welcome page to silicon tronics doesn't look so well laid out.
The page is full of a lot of text, all very similar in size ~ visually uninteresting, and not the place where I feel I could find what I was looking for. Yes, you have the one image, but again, tons of text, and not legible. Make the first page more visually interesting, and you should get more joiners.