Vintage Electronic Calculators:
CALCUSEUM Home page

Overview of Brands

Colleagues

RFT: 400 (version-2)
(Page 1/1)


AKA: konkret 400, Product number (P/N): 400,
Keywords/Tags: 400 | konkret
Date of intro: 1977, Origin: DDR (List),
Display: Type = Display (LED) (List),
Number of keys: 20, #Key-Black: 8, #Key-Blue: 11, #Key-Red: 1,
Classification: / Pocket,
Featuring: Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Serie-members: RFT: 400 (version-1) (Green/Black); RFT: 400 (version-2) (White keyboard with 11 Blue keys); RFT: 400 (version-3) (Black keyboard with 11 White keys); RFT: 400 (version-4) (Black keyboard with 8 Red keys),
Collector value: 8/10,
Courtesy of: WENZEL Gerhard,

Item

Created: 01-jan-2014, Manual-update: 20-oct-2017, Batch-update: 26-feb-2024             

# Pageloads since 2018: 22             

1 Pic(s),

                     

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