MTU documents Collected from several sources.
The early ones are for the MTU products aimed at the KIM-1, SYM-1 and AIM 65.
The later ones for the MTU-130/140 system.
– own scans of original MTU documents
– scans by Jack Rubin
– scans by Dave Plummer
– scans by David Williams
As of July 2025 this is a work in progress. The list is complete, not all scans are made or corrected.
List of not yet scanned/double/check already scanned/ originals
K-1002-3 Source PET Music Software May 1979
K-1002-1L 8 bit Digital Music Software Simplified Interpreter, Notran Interpreter Compiler sources Jan 1979
K-1002 8 bit audio DA converter hardware manual July 1979
K-1005 Card file and 5 slot motherboard KIM/MTU bus Nov 1979
K-1008 Visible Memory revised september 1979
K-1008-1L Graphic/Text subroutines Jan 1979
K-1008-2L Patches to Microsoft Basic Feb 1979
K-1008-3 Level 1 Graphic Software for all Commodore PET-2001 July 1979
K-1008-5C Visible Memory Demonstration, AIM 65 Basic, Subroutine package Jan 1980
K-1008-6 Integrated Visible Memory for PET and CBM April 1980
K-1009-1C AIM-65 Printer Enhancement Package April 1980
K-1012 System board PROM I/O Comm Programmer May 1979
K-1012 PROM/IO board Revised Jan 1980
K-1013 Double Density Disk Controller for KIM/MTU Bus May 1980
K-1016 16K Byte Memory Jan 1979
K-1016 16K Byte Memory revised September 1979
K-1020 Prototyping board April 1979
K-1002-6C PET Instrument Synthesis Software Package October 1980
K-1002-7C KIM-1 Instrument Synthesis Software Package October 1980
K-1002-8C AIM 65 Instrument Synthesis Software Package October 1980
Apex065 Operating System User’s manual AIM Preliminary July 1980
MTU CODOS Operating System User’s manual Release 1.0 August 1980
MTU0130 MACASM assembler October 1982
DMXASM 68000 assembler January 1983
License Agreement MTU0130 software
MTU Catalog Spring A2 Spring 1979
MTU Catalog Spring A5 Spring 1980
MTU Catalog Spring A3 Fall 1979
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MTU Product Descriptions |
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MTU-fall-1980 |
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MTU News V1.1 1982-05 |
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MTU News V1.2 Q3 1982 |
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MTU News V1.3 Q1 1983 |
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MTU News V1.4 Q2 1983 |
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MTU-130 The Personal Computer of Professionals |
Some of Hal Chamberlin’s publications
K-1008 Visable Memory
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K-1013 Floppy disk controller Manual |
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MTU-130 Double Density Disk Controller Manual |
CODOS Manuals
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CODOS Manual V1.0 |
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CODOS User Manual V2.0 |
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CODOS User Manual V2.0 OCR’ed |
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QumeTrak 842 Maintenance Manual |
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K-1002-2 8-bit audio Digital to Analog Converter |
 K-1007-1-A |
K-1007 PET interface K-1007 PET interface K-1007 Circuit diagram Supplement K-1007 New PET Circuit diagram |
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K-1008-6 Integrated Visible Memory for PET and CBM Computers K-1008-6 Visible Memory Circuit diagram Additional notes |
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K-1008-8 Keyword Graphics Package For Commodore PET and CBM Computers |
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MTU Mount for Commodore PET |