
| Manufacturer: | ELEKTRONIKA |
| Model: | 111 |
| AKA: | Iskra 111 |
| Year: | 1972 |
| Display: | Nixie (12) |
| Circuits: | See further on this page |
| Dimensions: | 365x295x115 mm |
| Power type: | 220V |
| Origin: | USSR |
| S/N: | 11406 |
| Owner: | DEVIDTS Serge |
| Info: |
Strange calculator from the
USSR
When turning on this calulator, the nixie-tubes are lighting up one by one,
it takes approximately 2 min. before all nixies are active,

The nixie-tubes are rather big and the numbers are strange formed ^


'Normal'- and 'Error'-display ^

Clears display ^

Clears error input ^
12 [+]
3
[CK] 4 [=] 16

Memory ^
12 [A]
25 [+] [A] [=] 37

Addition to memory ^
10 [A]
30 [rounded 1] 40
25 [+]
[A] [=] 65

Back divide ^
2 [-:-|] 3 [=] 1.5

Percentage ^
e.g. How much is 5% of 800:
800 [%] 5 [=]
160

Percentage ^
e.g. 20% of how much is 160:
160 [/%]
20
[=] 800

Minus ^
160 [/-/]
-160

Internals ^

White box (under the keyboard) with a
Delay Line
Memory ^

Keyboard reed-switch ^

Power-department and the rather
'standard' swith to turn on/off this machine ^
The prints-circuits: ^
Detail of print 1 (front & back)
Detail of print 2
Detail of print 3
Detail of print 4
Detail of print 5
Detail of print 6
Detail of print 7
Detail of print 8
Detail of print 9
Detail of print 10
Detail of print 11
Detail of print 12
Detail of print 13

One of the 196 circuits situated on the prints ^

Labels ^
Instruction Manual ^
Image courtesy: BATZ Marco