A former manufacturer of stage lighting and control systems based in Salt Lake City, UT, USA; and Calgary, Alberta, Canada (as Control Lighting, Ltd.). Formed in 1964 by a hostile takeover/buyout of Ariel Davis Manufacturing Company (see Note1 below), and purchased by Strand in 1986. The Salt Lake City factory closed in 1991. While never a top-tier manufacturer, they did have a large portion, if not the majority, of the educational market share in the 1970s and early 80s.
Their most memorable product is likely the Parellipsphere, a profile spotlight introduced in the 1970s and somewhat ahead of its time, featuring a computer-designed hybrid parabolic-ellipsoidal-spherical (hence the name) glass reflector and other features that would not appear on other fixtures until many years later.
More information at The Electro Controls Archive. No relation to the similarly-named current company, http://electrocontrols.com/, which makes HVAC control and building management systems.
Note1: From http://mentorseries.blogspot.com/ :
Their most memorable product is likely the Parellipsphere, a profile spotlight introduced in the 1970s and somewhat ahead of its time, featuring a computer-designed hybrid parabolic-ellipsoidal-spherical (hence the name) glass reflector and other features that would not appear on other fixtures until many years later.
More information at The Electro Controls Archive. No relation to the similarly-named current company, http://electrocontrols.com/, which makes HVAC control and building management systems.
Note1: From http://mentorseries.blogspot.com/ :
