AKA (Label): electronic calculator, elka 135, Product number (P/N): 135,
Keywords/Tags: 135
Date of intro: 1977, Origin: Bulgaria (List), Dimensions: 140x68x30mm, Weight: 125g,
Power: 6V: (AA x4) + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 20, #Key-Black: 11, #Key-White: 7, #Key-Yellow: 2,
Keyboard Array (Rows x Columns): 05x04,
Miscellaneous switch: [ON-OFF DEG-RAD],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Main Components: GENERAL INSTRUMENT: C596,
Other components: BOWMAR: BD5025,
Serie-members: ELKA: 135 (version-0) Prototype (Prototype); ELKA: 135 (version-1) (),
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VIRTUAL MUSEUM OF CALCULATORS, Link-2: A-MUSEUM