AKA: MK 57A, Product number (P/N): MK57A (MK 57A),
Keywords/Tags: MK57A (MK 57A)
Date of intro: ~1985, Origin: USSR (List), Dimensions: 153x76x25mm, Weight: 130g,
Power: 4.5V: (AA x3) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 25, #Key-Black: 20, #Key-Blue: 4, #Key-Red: 1,
Classification: / Pocket,
Featuring: Procent, Square root,
Serie-members: ELEKTRONIKA: MK57A (version-1) (Black/Black); ELEKTRONIKA: MK57A (version-8) (Black/Beige, printed keys); ELEKTRONIKA: MK57A (version-5) (Black/Beige, non-printed keys); ELEKTRONIKA: MK57A (version-3) (Black/Beige, non-printed keys, Blue switch); ELEKTRONIKA: MK57A (version-7) (Black/Gray); ELEKTRONIKA: MK57A (version-2) (Beige/White); ELEKTRONIKA: MK57A (version-4) (Red/White); ELEKTRONIKA: MK57A (version-6) (White/Blue),
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),