Hello all, This looks like a very useful site, especially for the exchange of ideas and the sharing of obscure information. My name is Dave and I have a 35-year history on the manufacturing, design and field service side of the business, and I'm called upon to light several shows a year, mostly for church and school. I also founded Pathway Connectivity (formerly Gray Interfaces), a manufacturer of DMX and Ethernet products. I enjoy being able to help others with technical information about the many different products they may encounter and have issues with, especially the older stuff from the 60s thru 90s. Feel free to pass along your questions and hopefully I will be able to help.