Facebook, not now

I am administrator of several Facebook groups. But not at the moment. So if you came here looking why I am absent on Facebook starting August 22, read this: I am well, my Facebook account is not.

I am not a fan of Meta and the way they treat privacy, so I do not post any personal info there anymore and unfriended nearly all.
Meta also started to target personal advertisement in a more aggressive way, even blocking access for a couple of seconds on the phone to force me to accept that.
I stopped therefore a long time ago posting personal information.

But these groups are retro computing related, with a nice atmosphere and many members, of which I am the administrator and a major contributor:
– KIM-1, SYM-1, AIM 65, Elektor Junior and clones (over 1000 members)
– 6502 CPU family (over 4000 members)
– The School of Wirth (a dozen members)

Out of the blue Facebook blocked my access on August 22, I have not obeyed their ‘community rules’. Must be because I link to my websites a lot. Facebook hates people going offsite!

At the moment I am not allowed back in, I have appealed and wait for Facebook. It could mean permanent blocking and the groups will suffer.
There are backup admins, so they may survive.

If I am permanently blocked, my regards and good wishes to all members of the groups I administer!

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All documents in the MTU pages are now clean and higher quality, about 50 new PDFs.

I got hold a about 10 cm of MTU documents. Several I already had in PDF format, some not available yet.
I took the opportunity to scan/rescan/repair what I have online until now.
All documents in the MTU pages are now clean and higher quality, about 50 new PDFs.

Noteworthy are the new revised K-1008 September 1979 document and the now complete and revised K-1013 manuals and 2 versions of the CODOS V1 manual.
All the K-1002 documents, for KIM-1, SYM-1, AIM 65 and Commodore PET are new.

Micro Technology Unlimited – Retro ComputingMTU history: Hal Chamberlin
MTU Catalogs, Product Descriptions and Newsletters
MTU Application notes
MTU K-1000 power unit
MTU K-1002 Audio D/A Converter
MTU K-1005 Card File and Motherboard using KIM/MTU bus
MTU K-1007 PET MTU bus interface
MTU K-1008 Visable Memory
MTU K-1008 documents
Dave Plummer has a K-1008
The K-1008 and the KIM-1 Simulator
Graphics Software Package K-1008
K-1008 Test programs
K-1008-2L Patches to Microsoft BASIC
K-1008 Visable Memory Replica by Eduardo Casino
MTU K-1009-1C AIM 65 Printer Enhancement Package
K-1012 PROM expansion board
K-1013 floppy controller
MTU CODOS
MTU K-1016 16K RAM board
MTU K-1020 Prototyping board
MTU K-1032 Banker RAM ROM I/O

Compumart KIM-1 documents

When I acquired a KIM-1 Rev A it came with some documentation revealing its provenance:

Warranty card
Brochure showing the Rev A
A document with KIM-1 program called KIM-1 Application CT1
KIM-1 Application Note 2 Interval Timer Operation

KIM-1 Revisions update

I have added images of my recently acquired KIM-1s to the KIM-1 Revisions Images page.

First version. I have a more time correct CPU (ceramic, pre June 1976) 6502 for this board. Needs a cleanup/restore also.

My KIM-1 first version

Rev A. Mostly original board, some small repairs.

My Rev A CPU week 15 1976

Rev G. A high quality unaltered KIM-1.

My second Rev F

MCS6500 Instruction Set Summary cards

A collection of MCS6500 Instruction set Summary cards, reference cards that are in my collection, that came with various SBC’s. MOS Technology, Rockwell, Synertek and Micrologic.

Digital Group added information

The Digital Group made computers with Z80, 8080, 6800 and 6502 as choice.I found a article in MICROTREK magazine 1977 with a review of this computer.

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