Product number (P/N): 72858821 (728.58821),
Keywords/Tags: 72858821 (728.58821)
Date of intro: 1973, Origin: Mexico (List), Dimensions: 152x76x33mm, Weight: 140g,
Power: 4.5V: (AA x3),
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 17,
Keyboard Array (Rows x Columns): 05x04, Keyboard Layout: [(Division)] [x] - [7] [8] [9] [=] - [4] [5] [6] [+] - [1] [2] [3] [-] - [0] [.] [C/CE],
Miscellaneous switch: [ON-(Blank)],
Classification: / Pocket,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Components: 41 ... 6 Capacitor(s), 8 Diode(s), 16 Resistor(s), 5 Transistor(s), 5 IC(s),
Main Components: BOWMAR: PM905411B,
Made by: BOWMAR (List of all Import-OEM-models for SEARS),
Serie-members: SEARS: 41029 (); SEARS: 728.58820 (); SEARS: 728.58821 (),
Known Serial-numbers: 143038 | 174393 | 183966 | 210555 | 275835 | 277351 | 327992 | 339750 | 388456 (List of all S/Ns from SEARS)
Initial Cost Price: USD58.95, Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY, Link-2: EARLY ELECTRONIC CALCULATOR TECHNOLOGY REFERENCE