AKA: CHRONOMATH, AKA (Label): CAT. NO. 65.614, EC-223, CHRONOMATH CALCULATOR ALARM, Product number (P/N): 65614 (65-614),
Keywords/Tags: 65614 (65-614) | EC223 (EC-223) | CHRONOMATH
Date of intro: 1977, Origin: Japan (List), Dimensions: 142x63x30mm, Weight: 120g,
Power: 1.5V: (AA x1) + Button: (x2), Adaptor: RADIO SHACK_adaptors: 65-732,
Display: Type = Display (VFD) (List), Digits = 8,
Number of keys: 23,
Miscellaneous switch: [ST-OFF-TIME-COMP-SET],
Classification: / Pocket / Time,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Original Equipment Manufacturer : CASIO: CQ1 (version-1), Resemblance with: MBO: Compu Quartz, Made by: CASIO (List of all Import-OEM-models for RADIO SHACK),
Known Serial-numbers: 1191810 | 1239113 (List of all S/Ns from RADIO SHACK)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),