Vintage Clocks & Watches

Soviet Calculator Elektronika MK-52 The functionality of the MK-52 is identical to the MK-61 plus the MK-52 has an internal non-volatile EEPROM memory module, for permanent data storage, diagnostic slot, and slot for ROM modules. Programming language and functionality of MK-52 and MK-61 are extensions of the MK-54, the B3-34 and B3-21 Elektronika calculators. It is the only known soviet calculator to have internal storage in the form of an EEPROM module. All Soviet calculators are renowned for having a very large number of undocumented functions. The calculators have been made on "Kvadr" factory, located in Borzna, Ukraine. Made in 1994. Condition New old stock. Tested and guaranteed to be fully working including EEPROM . All segments of the display are illuminated. Old electrolytic capacitors and display are replaced with new ones. Package Contents Calculator Save on batteries: USB power supply cable for Elektronika Calculators . If you are interested in other components for mk-52 (plastic case, paper manuals, power supply), please see my other lots: Soviet Calculators . Payment PayPal Shipping Shipping of my lots can be combined. To combine shipping, please request for the invoice before payment. The following shipping options are available: Economy shipping - shipping with tracking (registered mail). Delivery usually takes from 10 to15 business days. Express shipping - shipping with tracking (registered mail) by UPS or EMS. Delivery usually takes from 2 to 5 business days. Good Luck! eBay seller ID: veatex