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I have added an initial attempt at a lobo max 80 emulator to EmulatorKit (https://github.com/EtchedPixels/EmulatorKit) It's fairly basic and I still need to knock some bugs out of the WD17xx (and clone) emulation code. It is however good enough to run CP/M 2 and CP/M 3 off floppies. Next steps...

Does anyone know how the XLR8R dealt with clock signals. I've been designing a similar concept Z180 board for an unrelated system and on that the whole thing looks like it'll be 3 chips (512K SRAM, Z180, 74AHC139). In that case however I'm generating the system clock so it's all synchronous. The...

I've got a pair of Alpha DS20 boxes (Compaq branded), and an actual round hole rack plus a pair of HP PA-RISC rp series systems and various miscellanous SCSI bays for CD etc (but not scsi cables) and the rails/sliding shelf (even a nice HP top and some plastic HP filler pieces). I powered one...

Was pointed to this by a French friend https://www.leboncoin.fr/informatique/1557519042.htm/ No further info but I figure its probably not a site most of us scan...

I'm looking for something I can move easily between a gate array model 4 and a 4P in part to finish off getting the OS I am writing running nicely on real hardware not just the emulator. The FreHD seems better documented at the low level and it's clear how to move disk images around and poke...

I found a 2015 thread on this but it's not clear how having dismembered the keyboard anyone got it back together. It looks like something flexed the keyboard a lot, broke a load of the little pins and let a few springs out. I can get it apart easily enough by taking the tops off the remaining...

I've acquired a TRS80 Model 4 (26-1069A) and I'm trying to solve one mystery before I dare power it on. The system has US power data written on the label but has a UK plug. I suspect that at some point it has been retrofitted with a UK power supply, and to judge from the cable material and type...