I recently found this computer series.
There is a site with emulators
And I also found this Dutch forum with photos of parts in color, nice panel.
https://www.circuitsonline.net/forum/view/135384/1
Typical 70s. Doesn’t even look like a computer. (from cpushack)
That is actually my desk, and my P854…
Hate to say it, but I threw away some 7-8 Philips P856 machines with core memory and blinkenlights, some 15 years ago, as nobody was interested…
The machine was better than a PDP11, but lacked software suppport and marketing. Philips did make a microprocessor variant, the Signetics spc16/10, which must be the most unknown microprocessor ever…Still looking for a datasheet…
You could always port Fuzix to it if you’ve got enough RAM and the MMU option 
The emulator is scary, that’s not what I thought perl was designed for
