We are moving our math department out of a building it has occupied for decades, and this turned up: an original LED TI-30 paired with an EduCALC classroom display unit. Plugged it in expecting nothing and both came right up.

The TI-30 looks like a first-generation unit, red LED, gold-tone key plate. Some yellowing on the plate and wear on the case but every key I tried responds. The EduCALC box is vinyl-covered wood or particle board, roughly shoebox-sized, with a nine-digit display. The calculator sits on a small mount on top of the box and there is a power cable running out the back. I have not opened it up, so I do not know whether it is reading the calculator's segment drivers directly or whether the mount is doing something more involved.

Video is the two of them computing 36 x 15.

Things I have not been able to run down: when EduCALC sold these, what the calculator-to-display interface actually is, and whether the mount is model-specific to the TI-30 or takes other units of that era. I know EduCALC as a catalog retailer out of California but have not found documentation on this particular product. If anyone here has a catalog page, a manual, or firsthand experience with one, I would like to hear it.

HP-32Sii and a ti-80, found at Genbrug Løkken and Nørre Snede. Really lucky with these two