My gosh, this is going to be a short project log. Who would of thought it?
So with the realisation that the majority of the work had been done, the project was slightly condensed down to:
Designs from Alex:
- IO Board (with COP adapter)
- Profile Emulator
Designs from Warmech:
- CPU Board (with Custom Oscillator)
- ATX Power Supply
Parts I already had available:
- BMOW Floppy Emu
- Macintosh M0110A Keyboard
- Macintosh M0100 Mouse
- Matsushita multi sync monitor (the fact that it was multi sync is annoyingly important later)
Other Purchased parts:
- Macintosh Keyboard to Lisa Adapter
- Apple Lisa 512k RAM Card (SunRem 2mb cards were unavailable)
- RCA to BNC video cable
What I needed to build from Scratch:
- Lisa Power Supply to Motherboard Cable Harness
- Keyboard/Floppy Drive/Power Button Interface to Motherboard Adapter
- Composite to RGB Cable (design from Compu85)
Really, the entire project just boiled down to build a Motherboard, Power Supply, IO board and CPU board and some cable harnesses - then plug it all together.
From that, the following five boards were ordered from JLCPCB:
- IO Board
- CPU Board
- COPS Adapter Board
- ATX Power Supply Board
At a grand total of £190 in total for 25 boards shipped (minimum quantity of 5 each), it could be suggested that the boards came to a total of £8 per bare board. Extrapolating that out, a full Lisa would only cost about £48 for the core six blank boards!
Unfortunately, the RAM card wasn't as cheap at a cost of £75 (including shipping).
With all the boards on order, the Lisa project was fully underway.