Híradástechnika PTK-1060
| Manufacturer: | Híradástechnika Szövetkezet (Hungary) |
| OEM: | Калькулятор (Kalkulátor) (USSR) |
| OEM model: | Электроника Б3-23 |
| Mfg. date: | 1977 |
| Size: | 10×18,5×4 cm |
| Weight (ready for operate): | 377 g |
| Type: | programmable scientific |
| Capacity: | 8/8+2 digits (input/display) 8+2 digits (internal precision) |
| Operating logic: | custom |
| CPU: | Kvazar K145IK502P |
| Registers: | 2 standard 7 memory (without arithmetic) |
| Features: | +/-change sign (direct entry of negative numbers) RVexchange registers (X-Y) Ffloating-point notation Sciscientific (exponential) notation Sqrsquare root x2square pivalue of pi (3.1415..) can be recalled 1/xreciprocal trigtrigonometrical functions (sin, cos, tan and inverses: arcsin, arccos, arctan) logexponential and logarithmical functions (10- and e-base) yxraising to power |
| Display: | 15 digit LED (HP) |
| Power: | 4×D0,55S rechargeable battery |
| Programming method: | merged keystroke-programmable |
| Program capacity: | 60 steps |
| Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. - exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 2.731791E-70 |
A production waste of the PTK-1060 series with faulty ICs
The main PCB of the PTK-1060
The lower PCB of the PTK-1060 with keyboard assembly and the LED display
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