Ultra RARE! X-Calibur accelerator for Amiga 4000, pre-production unit #5!

[Zac67]

Actually, it's not an accelerator. It's a memory board for the A3640 accelerator.

[Zac67]

Interesting, didn't know that yet. Where does the faster oscillator go?

[Zac67]

Never mind, found the manual - the oscillator is swapped on the 3640. So the X-Calibur seems to fix the messy delay logic through the CPU socket - even more interesting.

I would really like to get my hands on this board but it's probably out of my budget. Plus my 3k would require some hacksaw treatment...

@Kickstart: the X-Calibur plugs into the A3640's CPU socket, the original CPU (or a faster one) then moves to the X-Calibur's socket.