On Thu, 14 Jul 2005 18:17:36 -0400, Peter Clark
wrote in


Didn't you love it when you spent 30min loading a 16k "flight
simulator", but sneezed at 29min and had to do it all over again?

I wired a red and green LED to the audio interface so I could tell
when I had the level within the correct range. It was pretty
reliable.

I interfaced the ZX80 to a Speak and Spell for voice output:
http://members.tripod.com/werdav/speakell.html

And constructed an ultrasonic link to an X-10 controller for home
control. It was a great hands-on digital education platform.