Strange Bus / Backplane System, Late 1970’s (As-Is)

Appearance: Used, DirtyFunctionality: UnknownDescription:============As pictured, somesort of backplane system. Includes just the cards shown, no other cables oraccessories are available. Unknown manufacturer or model name. Date codesindicates a June/1980 assembly. Unable to test, sold as-is.- Assy No.917-40025, Mother BD – 800, MD259F- Assy No. 917-40020,Dwell / Tach Brd- Assy No. 917-40006,Sweep Board, MC-668D- Assy No. 917-40021,Misc. Test Bd., MC-688E- Assy No. 917-40007,Pre-Amp/Secondary Trigger Board, MC-660D MC-657C- Assy No. 917-40008,Counter BD, MC-664D- Assy No. 917-40019,AMP/CRT Model 40-800, MC-680FAbout Us:=========The ComputerPreservation Group is dedicated to the preservation of historical computers. Tohelp fund ongoing operations, select items are made available. Thank you foryour support!Warranty andReturns:=====================This product isbeing sold AS-IS without any warranty. Returns are not accepted. To ensure thatthis is the right product for your needs, we’re happy to answer any questions. Shipping:=========- Local pickup isalso available at no cost.- Most orders placedbefore 9am will ship the same day.Stock#:10040