Heh yeah I saw that 128K board, bidded but no luck! Regarding the Xcalibur board ... I couldn't find a thing online for that, I assumed it was more a RAM upgrade than accelerator - what made you think it was the latter?

As noted, I do have the one good working 128K but hoping to get both going - as keepers, and as a backup for parts in future. The 128K I found years ago is my favourite Mac - and quite amazing that both work (to an extent!) 26 years later!

JB