AKA: RICOMAC 1620R, AKA (Label): MODEL 7468, Product number (P/N): 7468,
Keywords/Tags: 7468 | 1620R (1620 R)
Date of intro: 1971, Origin: Japan (List),
Power: AC,
Display: Type = Display (VFD tube) (List), Digits = 16+1,
Number of keys: 31, #Key-Black: 8, #Key-Red: 2, #Key-White: 21,
Keyboard Array (Rows x Columns): 04x09, Keyboard Layout: [(-)] [(ArrowRight)] [7] [8] [9] [-] [%] [MC] [MC] - [EX] [(SquareRoot)] [4] [5] [6] [+] [(Division)] [MR] [MR] - [C] [1] [2] [3] [x] [M-] [M-] - [CI] [0] [.] [=] [M+] [M+],
Decimal switch: [F-0-1-2-3-4-5-6-7], Round switch: [(ArrowDown)-5/4-(ArrowUp)], Miscellaneous switch: [K-OFF (Sigma)-OFF],
Classification: / Desktop with Display,
Featuring: Procent, Square root, Logic-technology: LSI (Large Scale Integration), calculator-chipset, Memories: 2,
Related with: RICOH_docu: (Broch.) 1620R,
Resemblance with: DIGITRON: DB1620R,
Serie-members: RICOH: 1610 (1 Memory); RICOH: 1620R (2 Memories + Sqrt),
Known Serial-numbers: 13424 (List of all S/Ns from RICOH)
Initial Cost Price: 166000 JPY (€ 1.344,60), Collector value: 8/10,
Internet: Link-1: DENTAKU MUSEUM