A-One, another Apple 1 clone

There are several Apple 1 clones made! The Replica-1 by Vince Briel is the first to apply modern components to replace the hard to get and therefore expensive components, like the Signetics 2513 and such, with modern microprocessors  emulating the terminal part. I found another one, with a dutch background, manufactured and sold by Achatz Electronics, the A-One. The design of this clone is similar: the terminal part is replaced by (this time two) microcontrollers, for video and serial interface. Some differences between the two designs: The A-one is even more compact, less IC’s Has a real Apple 1 slot instead of … Continue reading A-One, another Apple 1 clone

Apple 1 Replica

All of us older computer geeks know that before selling Macs, Apple founders Steve Wozniak (the genius) and Steve Jobs (the  greedy business man) had a lot of success with the Apple ][ or Apple 2 or whatever marketing tricks were done with the name of that remarkable personal  computer. The 2 in the name suggest there was a Apple 1 and yes, there were a very limited numbers of boards sold (200 or so, 50 or o survived time, so its a valuable collectible)  branded Apple 1 in the 1976-77 time-frame. It has video on board and accepts input … Continue reading Apple 1 Replica

Micro-KIM has arrived!

To be honest, the Micro-KIM arrived the day after I went east for my China visit. Together with a 32K RAM expansion, as you can see on the picture. I have been playing with it the last days and it sure is fun to have a KIM-1 experience again. It feels like 1977 again.   I have run some simple terminal based games  Microsoft KB9 Basic and Focal. The serial interface was irritating in 1977 and it still is 😉  More about this retro pionier computer at my Micro-KIM page. Continue reading Micro-KIM has arrived!

My website in Elektuur

For the second time the dutch magazine Elektuur (Elektor as it is called in other countries) has mentioned my website in an article devoted to retro electronics. In the July/August issue, mostly about robotics, an article is devoted to Philips EE-Bouwdozen. In the Links my webpage on the ME1200, the first Philips Mechanical Engineer, is mentioned. The previous time was in this article, about the Elektuur Junior Computer, in the january 2005 issue. Continue reading My website in Elektuur

MSX SCC Mega Flash ROM

The Mega Flash SCC is a cartridge for the MSX with a flash RAM memory inside. So it can be used as a normal cartridge once a suitable program has been stored inside, also known as ‘flashing’. This kind of memory has become quite cheap lately and is a lot easier to work with than the now old-fashioned EPROM’s with UV light erasers and special hardware for programming. The SCC in this Flash module gives this cartridge something extra: the SCC is the music IC that is found in so many MSX Konami games. And the SCC IC also provides … Continue reading MSX SCC Mega Flash ROM

Programming again: KIMPAPER

The micro-KIM made me start programming again! http://www.brielcomputers.com/ asked me  if I had a utility to convert from binary, like the KIM-1 programs on my website, to the MOS Technology paper-tape format that is understood by the KIM-1 monitor for loading programs. And yes, such a utility once existed, written by me as part of a teminal emulation and loading/saving package on VAX/VMS. Long time ago (1985), VAX/VMS Pascal and I only have a not  source on paper. So I started writing a program to be called KIMPAPER to convert between the MOS Technology paper-tape format and the not so intelligent BIN, … Continue reading Programming again: KIMPAPER

Micro-KIM will go into production!

Some weeks ago I told you about the micro-KIM, a KIM-1 clone designed and to be produced by Vince Briel. Update on june 2, 2007: the micro-KIM is available for pre-ordering! As a kit or as assembled and tested unit! The KIM-1 pages on my website have been expanded a lot to prepare for the launch of the Micro-KIM. I have ordered and received a micro-KIM< together with a 32K RAM expansion. The first batch had some PCB errors, easy to repair. This KIM runs all programs now, except for cassette audio  in/output.   Continue reading Micro-KIM will go into production!

Nostalgia: where it all started

When I was 12 year I have built a crystal radio, a simple to construct kit made by Philips, called Pionier Junior 1. And that started really my fascination for technical things. The device itself was very simple, the booklet described in terms understandable for a 12 year how it worked. It not only made me listen to the radio, in bed, late at night, to music and plays, I wanted to know more! See my website how the Philips kits gave me more. Of course the original kit was not preserved, some components here and there. I have collected … Continue reading Nostalgia: where it all started


If you visit my webpage, it will become clear nostalgia plays a big role nowadays in my interests. Old electronic kits like the Philips Pionier and EE8 and also my first computer, the KIM-1. I still have that old dinosour, and it still is in working condition, with all its expansions. KIM-1 single board computers are now hard to find and real collector value, I have several revisions in my collection. Now everybody can own a KIM-1 at a very reasonable price! Vince Briel is developing the micro-KIM, with nearly identical specifications and also a SBC. Cant wait to have … Continue reading micro-KIM