KIM-100

EPSON MFP image

EPSON MFP image

EPSON MFP image

EPSON MFP image

EPSON MFP image


Seawell Little Motherboard

I have added some photos from a Seawell Little Mother Board and Seawall SRAM card on the Seawell page. KIM-1 SYM_1 and AIM 65 expansion boards.

Now with the manuals scanned by Clayton Seale, thanks!

TECMUMAS museum


In Bad König, Westenwald, Germany, Matthias Schmitt and his wife have developed a museum dedicated to Technik called TECMUMAS. Mostly retro computers from the early days to the nineteens.

Here some photos of my visit in June 2025, when I was given the opportunity to see and photograph MOS Technology KIM-4 and KIM-5 devices and the Synertek MDT 1000.

Besides those systems TECMUMAS is home to about 1400 computers and what comes with it: manuals, books, monitors and more.

The museum has a large room to display a part of the collection, regularly refreshed with objects of the collection absed upon a theme.

See the page with photos of TECMUMAS. And the following updates to pages:

Synertek MDT 1000
KIM Brochure
KIM-1 Rev F image
KIM-4
KIM-5

Synertek pages update: SYM-1, SYM-2, KTM

New information added to the Synertek pages:

Images of Synertek objects in my collection
SYM-1s, KTM/2-80, expansions, books, manuals, ICs

SYM-1 Manuals
VIM-1 Reference Manual May 1978 scanned
Circuit Diagram SYM-1 high resolution high quality scanned
SYM-1 Technical Notes

Manual of KTM-2 and KTM-2/80February 1981 , high quality

SYM-2 manual, photos, source of monitor and ROM dump

SYM-1 and SYM-2 updates

Paul Schroeter gave me the dump of the SYM-2 ROM and photos of the backside.He also scanned his photocopy of the SYM-2 Reference Manual.


More about the SYM-1 and SYM-2 on the Synertek pages

Sources of SYM-1 and SYM-2 Monitor ROMs

Many years ago Paul R.Santa-Maria (who sadly left us in 2012) gave me the listing of the source of the Monitor ROM in the SYM-1 1.1
Delivered as a listing, with the comments from the listing in the SYM-1 Reference manual and formatted close to the printed listing.

This is the heading of the listing:

SYM-1 SUPERMON AND AUDIO CASSETTE INTERFACE SOURCES
COMBINED AND CONVERTED TO TELEMARK ASSEMBLER (TASM) V3.1

0002 0000 ;
0003 0000 ;*****
0004 0000 ;***** COPYRIGHT 1979 SYNERTEK SYSTEMS CORPORATION
0005 0000 ;***** VERSION 2 4/13/79 “SY1.1”

Since the ROM of the SYM-1 1.0, 1.1 and the ROM of the SYM-2 2.0 are available:

  • Converted the listing back to source format (TASM32, standard MOS format).
  • Created separate source for the SYM-1 1.0 ROM, the SYM-1 1.1 ROM (the original listing) and the SYM-2 ROM.
  • Typed in the audio cassette interface sources from the 1.0 reference manual.
  • Changed the SYM-2 source to the different hardware (a 6532 at AC00 instead of a VIA) and other (minor) changes.
  • Binary output compared to the original ROM dumps as proof the sources match the dumps.

In this archive sources of 1.0, 1.1, 2.0 listings, binary output.

Another KIM-5 located!

I have found a second KIM-5, also in Germany of the KIM-5.

Photos of a KIM-5 board with the Resident Assembler/Editor 6540 ROMs in a KIM-4 motherboard. Photos from the TECMUMAS, dem Technikmuseum (Matthias Schmitt)

More about the KIM-5 here.

Siemens Personal Computer PC 100 Bedienungsanleitung, Ausgabe 1981/1982

A contribution by Michael Steil of the scan of ‘Siemens Personal Computer PC 100 Bedienungsanleitung, Ausgabe 1981/1982’

The Siemens PC 100 was a version of the 6502-based “AIM-65” SBC in a case and with slightly modified ROMs. Siemens offered a set of German-language manuals, which included translated Assembler (MOS Resident Assembler) and BASIC (Microsoft BASIC) manuals, but also a general manual (“Bedienungsanleitung”).

See the PC100 page for more information like manuals and ROM dumps.

Siemens Personal Computer PC 100 Bedienungsanleitung,
Ausgabe 1981/1982

MTU Micro Technology Unlimited pages updated

The MTU pages have been updated.
– New are 8 documents on the MT-130 page, like DISKEX (file exchange with e.g. CP/M), Wordpic, Forth 79, later version of the Full Screen editor.
– The K-1013 Dual density floppy controller has its own page now, with new information
– The MT-130 is emulated on Mame
– MTU K-1000 power unit photos
– the MTU projects by Eduardo Casino

Not yet added are the results of the ongoing discussions on the threads on forum64.de, like multipage K-1008 displays, K-1013 replica builds, CODOS V1 and V2 dissecting.

K-1008, photo by John Lucas

EMUF M50734

Thanks to F.J.Kamerewerd, DL6OE, I have a photo of a EMUF 65XX with a very special CPU, the Mitsubishi M50734.
This CPU is from a family of 65C02 cores with enhancements.
Around this M50734 the EMUF M50734 is published in MC Magazine 11 1911.

See here for the information available.

TKChess Computerschaak Theo Kortekaas for the KIM-1

Theo Kortekaas, a member of the Dutch KIM User Club, published in the club magazine the KIM Kenner, Issue 11 and 20, a chess program for the standard unenhanced KIM-1.
The program files are from audio cassette digitized wave files from 1982. for keypad and LED display.