Product number (P/N): 438,
Keywords/Tags: 438
Date of intro: 1976, Dimensions: 125x72x20mm, Weight: 86g,
Power: 9V + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 24, #Key-Black: 11, #Key-Brown: 11, #Key-Orange: 2,
Keyboard Array (Rows x Columns): 05x05,
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Main Components: TEXAS INSTRUMENTS: ZA0571,
Serie-members: SOVRIN: 438 (version-1) (Black/Silver); SOVRIN: 438 (version-2) (Brown/Silver),
Known Serial-numbers: 655226 (List of all S/Ns from SOVRIN)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY