AKA: FINANCIAL, AKA (Label): MODEL-1439, FINANCIAL CALCULATOR, Product number (P/N): 1439,
Keywords/Tags: 1439 | FINANCIAL
Date of intro: ~1975, Origin: Taiwan (List), Dimensions: 146x76mm,
Power: 6V: (AA x4) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 20, #Key-Beige: 6, #Key-Red: 1, #Key-White: 11, #Key-Yellow: 2,
Miscellaneous switch: [(ArrowRight)-ON],
Classification: / Pocket / Financial+Business,
Featuring: Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: QUALITRON_docu: (Instr.) 1439; QUALITRON_docu: (Broch.) *: 1408,1419,1420,1421,1439,1444,1445,1448; QUALITRON_docu: (Broch.) *: 1439,1442; QUALITRON_docu: (Broch.) 1439,
Original Equipment Manufacturer : QUALITRON: 1439 (List of all Export-OEM-models from QUALITRON), Resemblance with: PRINZTRONIC: Financial, (Resemblance 014),
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1