12 thoughts on “ Nixie Tube RPN Calculator Project ” TG says: November 7, 2023 at 1:26 am Really good aesthetic on this one, feels like the real deal. Report comment. Reply.

[Sarah K Marr] dabbles in retrocomputing and has a fascination with the Hewlett Packard HP-45 calculator, the second calculator in HP’s series introduced in 1973. Over a year ago, she wrote a… ...