Vintage Electronic Calculators:
CALCUSEUM Home page

Overview of Brands

Colleagues

RICOH: 121 (version-2)
(Page 1/1)


AKA: MAC 121, Product number (P/N): 121,
Keywords/Tags: 121 | MAC
Date of intro: 1971, Origin: Japan (List), Dimensions: 290x260x100mm, Weight: 3100g,
Power: AC,
Display: Type = Display (VFD tube) (List), Brand = NEC: DG10EN, Digits = 12,
Keyboard: Reed-switch, Number of keys: 25, #Key-Blue: 3, #Key-Grey: 18, #Key-Red: 4,
Decimal switch: [0-2-3-4-6],
Classification: / Desktop with Display,
Featuring: Procent, Logic-technology: LSI (Large Scale Integration), calculator-chipset,
Main Components: AMERICAN MICRO SYSTEMS (AMI): 12001; AMERICAN MICRO SYSTEMS (AMI): 12002; AMERICAN MICRO SYSTEMS (AMI): 12003; AMERICAN MICRO SYSTEMS (AMI): 12004; AMERICAN MICRO SYSTEMS (AMI): 12005; AMERICAN MICRO SYSTEMS (AMI): 12006,
Other components: MITSUBISHI: M58215; TOSHIBA: TM4303P {4x}; TOSHIBA: TM4304P {2x}; TOSHIBA: TM4306P {8x},
Original Equipment Manufacturer : UNICOM: 1212 (List of all Export-OEM-models from RICOH), Resemblance with: COMMODORE: 442 (version-1); PRECISA: 1212, Made by: UNICOM (List of all Import-OEM-models for RICOH),
Collector value: 8/10,
Courtesy of: SIGG Markus,
Internet: Link-1: RECHENKASTEN

Item

Created: 09-sep-2003, Manual-update: 16-may-2022, Batch-update: 06-aug-2022             

# Pageloads since 2018: 62             

1 Pic(s),

                     

If you have a (better) personal picture and/or missing info about any model not listed: Please do send a Mail