Technisphere Corp. Color "Technically." Technisphere's color conversions for 1/2-inch black and white VTR's.. New York, NY: Technisphere Corp., undated.

Technisphere Corp. Rover Modification Package.. New York, NY: Technisphere Corp., undated.

Technisphere Corp. 1/2" Color Video Tape Recorder/ Editor, Model TC-3130. Technisphere announces the most advanced half inch editor available.. New York, NY: Technisphere Corp., 1973.

Technisphere Corp. 1976 Video Rental Guide.. New York, NY: Technisphere Corp., 1976.