References
- Magic 1 Homebrew CPU - Video Ten Years
- Relay Based Computer - nothing there yet
- Megaprocessor - computer built from discrete transistors
- [http://monster6502.com/] - 6502 processor built from transistors with lots of lights.
- [https://gigatron.io/] - Gigatron TTL Color Computer
Project
- Emulator Running
The most amazing vintage computers I recall were the ones that students named Bill V and Kellee C built from scratch. > Those should be in a museum. > Out of curiosity do you still have yours?
I still have the case you built for me along with the 12 bits wide front panel of LED's and switches. I had been using it as a box for a SWTP SS-50 computer. The original slit-n-wrap TTL everything boards have been salvaged and maybe even discarded. I don't remember seeing them in decades.
I do want to rebuild it:
1. Build a software emulator
2. Wirewrap it so it does what it used to do in the silver box
3. Add a "coprocessor" like a rPI so it can do a lot more.
My plan for the Sphere is about the same. I have a 6800 emulator - so it should not be hard to add the 1K ROM and minimal CRT to have a model software Sphere.
Then wirewrap a real Sphere model. Just getting it running the Itty Bitty tiny basic would be a blast.
I have the original Sphere keyboard in the garage here and I believe Mike H. has the original CPU board. The Memory (16K) and interface boards were unfortunately discarded. I remember the day I put the memory board in the garbage can at the trailer park in Bozeman.
TTL Computers
Do it in a cpld: http://www.bigmessowires.com/cpu-in-a-cpld/
Four bit TTL: http://www.bigmessowires.com/nibbler/
68000 booting uClinux https://www.youtube.com/watch?v=GJmPS3jMwD4
- http://www.youtube.com/watch?v=0aERZuW9KhM
- http://www.waitingforfriday.com/index.php/4-Bit_Computer
- http://3.14.by/en/read/homemade-cpus - Including Mark 1 Forth computer
- http://www.homebrewcpu.com/
- http://cpuville.com/
- http://hackaday.com/2012/04/20/building-a-computer-with-discrete-transistors/
- http://www.cpushack.com/2015/06/27/the-16-bit-transistor-level-megaprocessor/ - another Transistor computer
- https://trmm.net/ - Trammel Hudson - Retro computing projects
Other old computers
- http://www.rogtronics.net/blog/?p=28 Transistor PDP-8 clone
- https://www.altairduino.com/
- http://altairclone.com/
- http://obsolescence.wixsite.com/obsolescence/pidp-8-overview
Scelbi Mark 8
- http://8bitaficionado.com/2011/08/17/bringing-back-the-scelbi-8h/
http://8bitaficionado.com/titus/mark8b.html
- http://bytecollector.com/m8_docs.htm
- http://www.old-computers.com/museum/computer.asp?c=741
- http://www.ciphersbyritter.com/MARK8/MARK8.HTM
- http://bytecollector.com/m8_docs.htm
- http://www.jameco.com/Jameco/workshop/MyStory/mark8-designer.html
- http://www.kswichit.com/6802/6802.htm
Microchroma 68 - 68008
Sphere One
- https://en.wikipedia.org/wiki/Sphere_1
- http://bugbookmuseum.blogspot.com.au/2013/03/vintage-sphere-computer-at-bugbook.html
- http://sphere1.yolasite.com/
SS-50
- Midwest Scientific
- Southwest Technical Products Corporation - http://swtpc.com/