Here's a list of the docs that came with the INFO 2000 disk setup, aka PerSci 277 double drive and 1070 disk controller. I know most of this is already available online, but I can scan any of it on request. PERSCI 1070 INTELLIGENT FLOPPY DISK CONTROLLER 12 pg. glossy by Robert A. Stevens Reprint of an article from Sept 1977 /Interface Magazine/ AN ADVANCED DISC-BASED SYSTEM 4 pg. glossy by Michael Busch and Dan Gaines From same magazine issue INFO 2000 DISK SYSTEM 8 pg. sales brochure for Heathkit H8 Digital Group All S-100 Computers PerSci Mass Storage Systems - Specifications 2 pg. glossy PerSci Model 70 Diskette Drive - Specifications " PerSci Model 277 Dual Diskette Drive - Specifications " USERS MANUAL Intelligent Diskette Controller Model 1070 ~40 pg. April, 1978 PRODUCT SPECIFICATIONS Intelligent Diskette Controller Model 1070 22 pg. June, 1977 WESTERN DIGITAL MOS/LSI FD1771 APPLICATION NOTE FLOPPY DISK FORMATTER/CONTROLLER 20 pg. March, 1978 Installation and Maintenance Manual Duak Diskette Drive Model 277 44 pg. July 1977 Logic & Schematic Diagram Diskette Drive Models 270/272/277 31 pg. January, 1978 Product Specification Diskette Drive Model 277 24 pg. January, 1978 Installation and Maintenance Manual Duak Diskette Drive Model 70 Series 39 pg. October 1976 Product Specification Diskette Drive Model 70 24 pg. January 1977 Product Specification Diskette Drive Model 299B 36 pg. not dated USERS MANUAL Dual Density Controller Model 1170 62 pg. March 1980 Doc PerSci, Inc. Product Price List 1 pg. November 18, 1977