A do use those "high tech tools of old" quite a lot myself. I do electronics too. They are handy for whipping together a quick schematic or front panel layout, etc, and they don't "blue screen" when you're 99.9% complete on an important project. But that "newfangled" computer sure makes it easy to go online and buy the parts to put that idea together :-) trucker_lady_curve(point[] pts) - Oren

Long time lurker - first post here. I have an old ca 1966 Canon 161 electronic calculator that I restored to operational condition this last weekend. No "chips" - something like 788 germanium transistors and over 2000 diodes on a stack of 11 9x12 inch boards. The display consists of layers of clear plastic slides that are side-lit by small incandescent lamps. Takes almost one second to do a divide operation. Some of the digits flicker while it is doing this. Fun old machine! There is an example of one here: http://oldcalculatormuseum.com/canon161.html[^] I have also an HP-15C that I bought in 1983 - 4th set of batteries, I think... - Oren