All are photocopies except as noted: User manual for Carousel 310 and Carousel 350 printer Perkin-Elmer, 1978 (photocopy) Operation and Service Manual for VA3415C/D/V 1200bps Modem Vadic, 1977 Installation Instructions, VA3400 Series Modem includes theory of operation and calibration Vadic, 1975 Shintron Model 520 Ecricon(R) Graphic Data Tablet Instruction Manual Shintron Company, Inc., 1972 (original document) Technical Manual, Model 306 Printer Centronics Data Computer Corp., 1981 (original document) Model 6080 Printer Operators Manual, Rev. A Centronics Data Computer Corp., 1982 (original document) Operators Manual, Series 100 Printers Centronics Data Computer Corp., 1973 Revision Identification Guide for the Model 101 and 101A Printer Centronics Data Computer Corp., 1973 Maintenance and Field Change Bulletin for Centronics Model 101/101A Printers DEC-FS-HPTRA-A-D Digital Equipment Corporation (Centronics reprint) Partial copy of GE Terminet 300 maintenance manual Many Terminet Service Advice notices (mid 70's) Micro-Ferrups Uninterruptible Power Systems User Manual Best Power, 1993 (original document)