Home built Spectrum 128
The Sinclair spectrum is a relatively simple computer and only really uses one custom part, the ULA. As i had one of these lying around, i decided to try to use it to build one.
The process of building in order
At this stage, we now have a working and usable 16K spectrum. Of course, being a 16K spectrum, its not useful for very much, but you cant have everything :-)
Still to do
- The CPU is too loaded and is unstable when all the cards are plugged in. Must put in some buffers.
- Shadow video ram.
- Multiface hardware
- Spectrum +2a/+3 ROM system
- Hard disk hardware
- Kempston mouse
- Kempston joystick