We have received several calculators in good physical state that we have thoroughly revised and -when needed- repair.
Let’s list them here:
We’re also preparing a HP 54201A Oscilloscope, for which the data battery died and we’re soldering a new one, good for 30 year more, and a HP 8591E Spectrum Analyzer, for which we’re doing a thorough testing - so far it seems to be working well. It is an amazing machine, that you can interface through HP-IB to your (old) computers. Please drop a line to firstname.lastname@example.org to get more information about our measurement items.