| Manufacturer: | UNISONIC |
| Model: | 811 |
| AKA: | |
| Year: | ~1974 |
| Display: | VCF |
| Circuits: | |
| Dimensions: | 133x80x22 mm |
| Power type: | 6V-4xAAA/AD |
| Origin: | Taiwan |
| S/N: | 038441 |
| Owner: | DEVIDTS Serge |
Case:
Color case:
Color keyboard:
Weight:
Voltage selection:
Power consumption:
Working conditions:
Printed Circuit Boards (PCB's):
Memories:
Memories indication:
Prog. steps:
Decimal point handling:
Rounding:
Calculation overflow indication:
Input overflow indication:
Divide by Zero indication:
Square root of negative value indication:
Negative value indication:
Auto constant function by pressing twice:
Auto Power-off:
Display details:
Keyboard details:
Printer:
Printer roll:
Printer inkt-ribbon:
Extra features/remarks:
Initial price:
Overall quality rate (1-10):
OEM-copies:
Other sources of info:
Advertisements/Publications:
Black.
Silver.
N/A.
N/A.
N/A.
N/A.
N/A.
7
BENSENE Rick
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Another version with only 19 keys ^