AKA: LIQUID CRYSTAL, alpha 4001, Product number (P/N): alpha,
Keywords/Tags: alpha | 4001
Date of intro: ~1978,
Display: Type = Display (LCD) (List), Digits = 8+1,
Number of keys: 35, #Key-Black: 22, #Key-Blue: 1, #Key-Red: 1, #Key-White: 11,
Miscellaneous switch: [OFF-ON-(Sigma) DEG-RAD-GRAD],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI,
Collector value: 7/10,