I've said it before and I'll say it again.....back in the 70s and early 80s people got really creative with their machines! In those days if you needed a new peripheral or circuit board and one wasn't available you designed and built it yourself. Take this one - a humble singleboard Microtan65 that's been lovingly enhanced by its owner, first by adding the TANEX ROM/RAM/serial expansion on a twin-slot backplane and then an external and apparently rare TUGBOARD that had been produced by the Tangerine User Group to add a load of extra ROMs. Of course, it HAD to be external since there wasn't space inside that solid wooden box for a 3 slot backplane :)

There's also a blinkenlights panel connected to a serial port and 2 more ports taking up the EPROM burner you can see in the pix - 3 9V batteries required! Finally there's a choice of either the original Tangerine hex keypad or a nicely cased 'real' keyboard that's been nicked from an original Apple ][....

(For my ultimate in homebrew machines have a look at the Ohio Superboard at the bottom of this page)