Lemmink wrote:
That bridge board must be quite rare. I have never seen this one and neither BBoAH nor AHD have it listed.
Does it say somwhere on the PCB who made it ?
A closeup of the board would be interesting too.
Hi lemmink
It's a Commodore A2386SX. I just searched and found it at BBOAH:-

""Emulates: PC
Processor: Intel 386sx@16Mhz, Intel 386sx@20Mhz or Intel 386sx@25Mhz, optional 387 FPU (PLCC)
RAM: 1MB (Expandable to 8MB with ZIPs, 16MB with a ZIP to SIMM converter)
Graphics Emulation: MDA
CGA
(can use real ISA graphics cards)
Sound Emulation: Real PC speaker
(can use real ISA sound cards)
A full length Zorro II card which emulates a PC at the full speed of a 386. It was available with three different speeds of 386, from 16Mhz to 25Mhz. The card plugs into both a Zorro II slot and an ISA slot and was capable of using real ISA cards. This bridgeboard could use your existing Amiga's floppy drives or dedicated floppy drives. Although the bridgeboard does not allow you to use ISA cards from the Amiga side, there is a special driver available from Aminet that does let you use NE2000 network cards from the Amiga.""
The one I've got doesn't have a battery fitted at the moment as in the pic from BBOAH (thank goodness :-)), but it does have a chip 'Cyrix FastMath CX83S87 -25 -JP' fitted in the empty socket above and to the left of the blue battery.