Jafa E2P (Electron Second Processor) re-visit
It's been 5 years since I made the 512K E2P incorporating two User Ports, since then I have progressivly been building a more capable and smaller Electron clone. The E2P now looks huge against the size of the Electron and with the User Ports now built in to the clone I thought I'd try and build a mini version of the 512K E2P.
To start with I removed the User ports and reduced the component sizes by using surface mount parts where I can. I could also use a smaller GAL once I removed the User Port code. Keeping the parts as close together I have managed to reduce the board down to just 89mm x 76mm approximately the same size as a standard Acorn/Pres cartridge.
To get an idea of scale:
Lets hope it works..