Proton PIM-1

Gerben Voort acquired a microprocessor development system PIM-1 developed by Proton, of PC-1 fame.

Here his photos of the system after the cleanup, operational again.

In the future I hope to scan the documentation.

PROTON KB-2 keyboard

Walter van Waard found a keyboard made by PROTON, a Dutch company from the 80ties that produced many 6502 and Z80 based ...

R65 - A late seventies computer built with a KIM-1

R65 - A late seventies computer built with a KIM-1 by Rene Richarz. All information on the R65 and the emulator of th...

6502 analyzer: what CPU is this?

With the Chinese changing the prints on the IC's, one can never be sure with a 6502 which it is. I have for example ...

KEMPAC SYSTEM Microcomputers

Under the name KEMPAC SYSTEM Eurocards and Microcomputers for Industrial Automation a 19 inch rack system was developed ...

PROTON Electronics: PC-1, CB80, PIM-1, KB-2

PROTON Electronics, a small company from Naarden the Netherlands, led by James Post, and A.J. Kool as technical manager, produced and sold a lot of electronic equipment in kit and assembled format. Parts, kist, measurement, computers to computer systems based on the 6502 and later the Z80.
They also developed Ultiboard, a printed circuit board design and layout software, which became very succesfull. The company moved to the USA for the Ultiboard business and the software is still available at NI.

On these pages information on the 6502 systems PC-1, PC-2 and PC-3, the Z80 CB80 Combiboard systems, the PIM-1 boxed 6502 system and the KB-2 Keyboard.

Many articles on PROTON systems in the KIM/6502 Kenner

Many thanks to Dirk Prins for photos, scans, sources.

PROTON KB-2 keyboard

Walter van Waard found a keyboard made by PROTON, a Dutch company from the 80ties that produced many 6502 and Z80 based ...

R65 - A late seventies computer built with a KIM-1

R65 - A late seventies computer built with a KIM-1 by Rene Richarz. All information on the R65 and the emulator of th...

6502 analyzer: what CPU is this?

With the Chinese changing the prints on the IC's, one can never be sure with a 6502 which it is. I have for example ...

KEMPAC SYSTEM Microcomputers

Under the name KEMPAC SYSTEM Eurocards and Microcomputers for Industrial Automation a 19 inch rack system was developed ...

PIM-1 Proton 6502 system

Posted on 04/03/2026 by hanso

Gerben Voort acquired a microprocessor development system PIM-1 developed by Proton, of PC-1 fame.

Here his photos of the system after the cleanup, operational again.

In the future I hope to scan the documentation.

KIM-1 connectors: beware the Chinese cheap variants!

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Magazines: Compute! and Compute II

The pages om Magazines had an update. MICRO has its own page with all Best of MICRO pfds. Compute! and Compute II ar...

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 oppo...

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

KEMPAC system eurocards and microcomputers

Posted on 04/03/2026 by hanso

Under the name KEMPAC SYSTEM Eurocards and Microcomputers for Industrial Automation a 19 inch rack system was developed in the 80ties around the 6502 by the (of TMX fame) Kuipers Electronic Engineering B.V., Zwijndrecht

Gerben Voort has acquired such a system and has shared these photos. In the future I hope to scan the documentation.

Kempas was developed by Kuipers Electronic Engineering bv. te Zwijndrecht

From a linkedin link:

Michiel Cornelissen
Afstudeeropdracht bij Kuipers Electronic Engineering bv. te Zwijndrecht: ”Van KEMPAC tot Applicatie; Opzetten van de workshop voor het ontwikkelen van applicaties met behulp van het KEMPAC systeem. Naast de technische ook de didactische aspecten onderzocht.

Directeur Peter-Paul Kuipers van Kuipers Electronic Engineering (TMX) overleed onverwachts op 24 juni 2022. Nu heeft het bedrijf surseance van betaling aangevraagd. © Kuipers Electronic Engineering (TMX)
Directeur Peter-Paul Kuipers van Kuipers Electronic Engineering (TMX) overleed onverwachts op 24 juni 2022. Nu heeft het bedrijf surseance van betaling aangevraagd.
Dubbel drama voor bedrijf: directeur overleden en nu ook financiële problemen
De dertig medewerkers van Kuipers Electronic Engineering (TMX) in Zwijndrecht maken in korte tijd twee drama’s mee.

André Oerlemans
In juni overleed onverwachts hun directeur Peter-Paul Kuipers. Nu heeft zijn broer Robert surseance van betaling moeten aanvragen. Bewindvoerder Jeroen Schras heeft tot november de tijd om het bedrijf te redden. Ondertussen wordt er doorgewerkt.

Het bedrijf aan de Houtkoperstraat bestaat sinds 1976 en levert tele-monitoring voor installaties, waterlopen, bruggen en tunnels.

KIM-1 connectors: beware the Chinese cheap variants!

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Magazines: Compute! and Compute II

The pages om Magazines had an update. MICRO has its own page with all Best of MICRO pfds. Compute! and Compute II ar...

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 oppo...

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

EMUF 6504 remake

Posted on 24/02/2026 by hanso

A remake by Klaus Loy of the 6504 based EMUF 6504 as published in MC, see for the many original articles about the EMUF SBCs.
Here the announcement.
Here a local copy of the work by Klaus.

See his github archive for the original.

KIM-1 connectors: beware the Chinese cheap variants!

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Magazines: Compute! and Compute II

The pages om Magazines had an update. MICRO has its own page with all Best of MICRO pfds. Compute! and Compute II ar...

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 oppo...

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

EMUF 6504 remake

A remake by Klaus Loy of the 6504 based EMUF 6504 as published in MC, see the many original articles about the EMUF.
Here the announcement.
Here a local copy of the work by Klaus.

See his github archive for the original.

PROTON KB-2 keyboard

Walter van Waard found a keyboard made by PROTON, a Dutch company from the 80ties that produced many 6502 and Z80 based ...

R65 - A late seventies computer built with a KIM-1

R65 - A late seventies computer built with a KIM-1 by Rene Richarz. All information on the R65 and the emulator of th...

6502 analyzer: what CPU is this?

With the Chinese changing the prints on the IC's, one can never be sure with a 6502 which it is. I have for example ...

KEMPAC SYSTEM Microcomputers

Under the name KEMPAC SYSTEM Eurocards and Microcomputers for Industrial Automation a 19 inch rack system was developed ...

KIM-1 Rev D White

Posted on 18/02/2026 by hanso

New project, cleanup and restore this KIM-1 . Poor thing still works but had a rough life. KIM-1 collection complete now, this one was the one I was waiting for.