AKA: SLIDE RULE MEMORY, AKA (Label): Calculator Model 31 R, Product number (P/N): 31R,
Keywords/Tags: 31R | SLIDE RULE MEMORY
Date of intro: 1975, Origin: Mexico (List), Dimensions: 155x75x22mm, Weight: 176g,
Power: Rechargeable,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 20, #Key-Brown: 20,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Related with: ROCKWELL_docu: 3031RIG0018 (Instr.) Die Antwort (30R,31R); ROCKWELL_docu: 2520D83226R03016 (Instr.) 31R,
Components: 16 ... 2 Capacitor(s), 12 Resistor(s), 1 IC(s),
Main Components: ROCKWELL: 20167D58,
Resemblance with: (Resemblance 057),
Serie-members: ROCKWELL: 31R (version-1) (No Type-notification on Keyboard); ROCKWELL: 31R (version-2) (Type-notification on Keyboard),
Known Serial-numbers: 143284 (List of all S/Ns from ROCKWELL)
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY