Title
HP-55 calculator battery pack
Catalog Number
X198.83B
Type
Physical object
Description
This item comprises two pieces: A: Calculator B: Battery pack (corroded cells) A Scientific Calculator, the HP-55 was the very first keystroke programmable calculator/timer offered by HP. The calculator used a crystal oscillator, instead of the LC oscillator used in other HP calculators, thus making the stopwatch feature very accurate. Original price: $395.. Dimensions are of the calculator
Date
1975
Manufacturer
Hewlett-Packard Company (HP)
Place Manufactured
U.S.
Identifying Numbers
| Model number |
HP-55 |
| Serial number |
1509A03916 |
Category
Power source/battery
