-40%

Vintage SWTPC 6800 Computer Microcomputer system with Documentation

$ 1056

Availability: 100 in stock
  • All returns accepted: ReturnsNotAccepted
  • Condition: Used - Vintage
  • Country/Region of Manufacture: United States
  • Brand: SWTPC

    Description

    RARE Vintage SWTPC 6800 Computer Microcomputer system with Documentation
    Nice and rare example of a system with all original documentation. SWTPC Cards are all original.
    I am the original owner. I believe I assembled this in the end of 1976 or beginning of 1977. Total memory is 24K (2 SWTPC 4K + 16K Digital Research).
    You will never find another example as nice as this one that also comes with the original documentation.
    Included are the following items:
    MP-S Serial Card
    MP-A Processor Card
    MP-B Mother Board
    MP-P Power Supply
    MP-C Serial Control Interface
    MP-M Memory Board (Qty 2, full 4K capacity each)
    Digital Research 16K SS-50 Static RAM Board (1978 Vintage)
    Chassis, Case and cover
    Note: Photos show a Newtech Sound Card - That is NOT included in the sale. That card was sold in a different
    eBay
    listing.
    Documentation:
    Original SWTPC Yellow 3-Ring Binder - "System Documentation Notebook"
    MP-S Serial Card Interface Assembly Instructions, Wiring, Interfacing to ASR-33, Schematic, Board Layout, Parts List
    MP-A Processor Card - Assembly Instructions, Schematic, Board Layout, Parts List
    MP-B Mother Board Assembly Instructions, Schematic, Board Layout, Parts List
    System Checkout Instructions
    MP-P Power Supply - Wiring, Assembly Instructions, Schematic, Board Layout, Parts List
    MP-C Serial Control Interface - Assembly Instructions, Schematic, Board Layout, Parts List
    MP-M Memory Board - Assembly Instructions, Schematic, Board Layout, Parts List (2 copies, one for each card in this system)
    SWTBUG 6800 Rom Monitor Version 1.0 User Guide - Install, Listing
    Digital Research 16K SS-50 Static RAM Board Instructions, Assembly, Schematic
    Motorola Engineering Note 100: MCM6830L7 MIKBUG/MINIBUG ROM
    MP-MX Memory Expansion Kit - Assembly Instructions, Schematic, Board Layout, Parts List - Brings original card up to 4K (2 copies, one for each memory card)
    Dual Address Memory Test CDAT Listing, and CDAT -2, and MEMCON-1,3, SUMTEST 2, ROBIT-1,2
    Motorola M6800 User's Group invite
    Copy of SWTPC Computer Newsletter, Issue 1a, June 1976
    Not all documentation above is shown in photos. eBay includes 12 photos, so I showed an example of them.
    The system was last used/powered around 1992 and was fully functional connected to an ASR-33.
    I do not have the ability to test the system, so it is offered as-is.
    The included documentation includes instructions on how to bring up the system for the first time, so that can be used as a guide to methodically bring the system up.
    The system will be shipped in two boxes. One box will contain the main chassis, and the other will contain the circuit cards in ESD bags, properly protected, along with the system documentation. The unit cannot be shipped in one piece because the circuit cards will sway with any serious movement and will knock together. Shipping price is for UPS Store Pack and Ship Guarantee service (UPS Store professionally wraps and boxes system sent UPS Ground) within the US 48 States.  I can ship to other locations outside of the US 48 and would need to get an estimate for you.