Product number (P/N): 51,
Keywords/Tags: 51
Date of intro: ~1976, Dimensions: 235x170x60mm,
Power: AC,
Number of keys: 23, #Key-Black: 21, #Key-Yellow: 2,
Round switch: [5/4-(ArrowDown)], Miscellaneous switch: [0-(Sigma)],
Classification: / Desktop with Display,
Featuring: Procent,
Related with: ELKA_docu: (Article): 51: Elektronischer Tischrechner ELKA 51,
Serie-members: ELKA: 51 (version-1) (Green); ELKA: 51 (version-2) (Grey display type-1); ELKA: 51 (version-3) (Grey display type-2); ELKA: 51 (version-4) (Orange); ELKA: 51 (version-5) (Yellow),
Known Serial-numbers: 144283 (List of all S/Ns from ELKA)
Collector value: 8/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),