Here's a photo of my "blue box stack". From the bottom, An RC2014 WBW (Spencer Owen kit), an RC2014 Orton 3-C (also Spencer Owen kit), the Altair-duino 680 kit (Chris Davis kit) and a Terasic de-10 Nano FPGA board with Mister MT-32 running off a Raspberry Pi-3.
No shown many other kits including the experimenter Z80 Altair-duino (was just called the Altair-duino way back when I bought it), all the PiDP kits from Oscar V. and an Imsai 8080 (duino) kit from the High Nibble.
Normally I'm firmly attached to the Z80 world as it was the first system I ever owned (TRS80 Mod1 thru 3, 4 and finally 4P which I also still have). I'm liking the 680 just because it's different.
-R
