I think the grey Century Lekos were the 1500 series. Strand Century had a nifty upgrade to these where you purchased the 2200 series rear end and repurposed the lens tube. We did that for over 100 units, gave us a nice modern 1KW rated unit.@SteveB You're conjuring the right image: The three Strand CD80 twelve by 2.4 Kw packs are in the basement in a locked room off the prop room to isolate their fan noise. 1.25" EMT brings the dimmer outputs straight up the wall to the bottom of the slide-patch and the approximately 100 circuits are distributed around the theatre / auditorium as several Socapex's and primarily 2P&G's as tails off of troughs. Fixtures are a totally mixed bag from ancient ellpsoidals still running a very few 500T14bi-posts to Strand 2200 series, Altman 65's and their predecessors, plus Strand grey ellipsoidals that pre-dated the 2200 series to Source Four 36 and 50 degrees. Add a pair of I-Mirrors and stir to suit. The community theatre has been in operation since sometime prior to 1900 with only a minor interruption for the first world. The person largely responsible for keeping everything maintained and operational is retired from his career as a sales support technologist with Reliance Electric specializing in LARGE AC and DC motors and drives globally; think steel mills, pipe lines and ocean port gantry crane control systems and their drives.