The Teletype Model 33, including the stand, is high, wide and deep, not including the paper holder. The machine weighs on the stand, including paper. It requires less than four amperes at 115 VAC 60 Hz. The recommended operating environment is a temperature of , a relative humidity of 2 to 95 percent and an altitude of . The printing paper is an diameter roll and the paper tape is a roll of wide tape. Nylon fabric ribbons are wide by long with plastic spools and eyelets to trigger change of the ribbon feed direction.