Qualitron 1437
Brief History
One of Taiwanese Qualitron’s stylish black-and-white colored, curved-shaped calculators was the 1437 basic model, which used General Instrument’s microchip. Qualitron have produced all kinds of pocket calculators with a similar look, from the simplest to the scientific or even programmable variations, which — thanks to their low price and good quality — have become popular all over the world. Later, the product range was expanded with thin, elegant metal-case calculators, and Qualitron made growing quantities of products for their OEM partners.
| Manufacturer: | Qualitron Corporation (Taiwan) |
| Mfg. date: | 1975 |
| Size: | 7,6×14,3×3,4 cm |
| Weight (ready for operate): | n.a. |
| Type: | four-function |
| Capacity: | 8 digits (input/display) 8 digits (internal precision) |
| Operating logic: | algebraic |
| CPU: | General Instrument CF593 |
| Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) |
| Features: | %calculation with percent Ffloating-point notation |
| Display: | 9 digit VFD (Itron FG95A) |
| Power: | 4×AA battery or adaptor |
1437
Inside of the 1437
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