HP 65 scientific calculator-charger, case, manual, & cards. Excellent condition. First hand-held, programmable calculator. Display uses scientific notation, 10 digits mantissa, 2 digits exponent, red LED. Programmable with 100 steps. Takes 3.6 v (3x AA rechargeable cells in a battery back, or runs direct. Launched in 1974. If you have questions call: 617 571 3068
On Apr-20-17 at 15:49:05 PDT, seller added the following information:
