Issue No. 06 - November/December (1972 vol. 5)
A dual transport tape cassette unit that features direct reel-to-reel drive which eliminates belts, capstans, pulleys and clutches found in the typical transport was announced for its PDP-8 and PDP-11 minicomputers by Digital Equipment Corporation at WESCON.
"New Products", Computer, vol. 5, no. , pp. 59-63, November/December 1972, doi:10.1109/C-M.1972.216999