smd08367.jpg (43361 bytes)

Manufacturer: ELEKTRONIKA
Model: MK52
AKA:  
Year: 1983-1991
Display: VCF (8+2)
Circuits:  
Dimensions: 212x78x35 mm
Power type: 6V-4xAA / Adapter
Origin: USSR
S/N: 91 06 078649
Info: 15 memories, 115 program steps
Probably the only calculator that's using an EEPROM (internal) for internal storage of program data.

 

Another (blue) version ^
(thanks to VENGEL Vladimir for the picture)



smd12537.jpg (8142 bytes)

Display ^

smd12533.jpg (54786 bytes)

Internals ^

smd12534.jpg (22876 bytes)

Module-port ^
There are four such ports on the back of the calc.
Two of them can be used as expansion-port for external modules
which can provide additional ROM memory for additional program storage.

smd12529.jpg (22172 bytes)     smd12530.jpg (23078 bytes)

Instructions ^

smd12535.jpg (38364 bytes)

Box ^

smd12536.jpg (15900 bytes)

Adapter ^

smd12541.jpg (8056 bytes)

Label: bottom ^

 

Electronic scheme 1
Electronic scheme 2