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Elektronika MK-85C

1992-1994

The first commercial portable encryptor in Russia. Manufactured on the basis of the MK-85 microcomputer. Instead of the standard BASIC software, it has the "Azimuth" ("Азимут") encryption system based on the "Angstrem-3" ("Ангстрем-3") algorithm. The code name of the device: "Ancript" ("Анкрипт"). Serial devices began to be produced in November 1992. The date on the cover is often older than on the chips, so it is difficult to establish the exact date of manufacture of the devices. The earliest (of those known) ROM chip (firmware code 061) was manufactured in April 1992.

Processor: T36VM1-2 (KA1013VM1) - PDP-11 compatible 16-bit; 400kHz/2MHz*
RAM: T36RU1-2 (KA1013RU1); 2KB (1x)
ROM: T36RE1-2 (KA1013RE1-2); 32KB (the firmware is duplicated, used only lower or (if lower broken) upper 16KB)
Display: LCD (IZhV1-12/5-7), 12 matrix digits (5x7), indicators EXT, S, F, RUN, WRT, DEG, RAD, GRA, TR, four 7-segment digits; Controller - T36VG1-2 (KA1013VG2)
Power: 6V (4x1.5V) SC 0,18 silver oxide batteries (SR44 silver oxide or AG13/LR44 alkaline analogs); 5.5V power supply Elektronika D2-10K or D2-37V

* - In the "turbo" mode. Isn't used by this firmware.