Description
The Sharp EL-509D is a scientific calculator with 10 digits precision and algebraic logic. It has 58 functions, 44 keys and an LCD (liquid crystal) display. The power source is 2x1.5V cell.
Sharp EL-509D
Contact Us
- Contact: Aaron C. Sylvan,
Board Chair - Address: IT History Society
534 Third Avenue
Suite 1248
Brooklyn, NY 11215 - Email: info@ithistory.org
