Early
Electronic
Calculator
Sharp EL-8131 Calculator

Manufacturer: Sharp
Model: EL-8131
Year: 1978
Form: Pocket
Functions: Basic four, memory, percent, square root
Number of Digits: 8
Display Type: VFM
Display:FUTABA 9-ST-20
Logic Technology: LSI
Diodes: 4
Transistors: 1
IC Complement:? SC36442
Batteries: 2 AA
Power Connector:3 VDC, - tip, mini audio
Tech. Data Level: 2
Tech. Data Source: RE
Tech. Data Pages: 1
Tech. Data:Schematic (pdf)


- Unit Log -

Serial Number: 88105287
Year of Manufacture: 1978 (Capacitor stamped with 7806, IC with 8F.)
Accessories: With slip-style carrying case.
Date of Receipt: 02 May 2001
Source: Broadway & Alma SPCA.
State upon Receipt: Good physical condition. Fully functional.
Current State: Fully functional (07 May 2001).


Date: 05 May 2001
Procedure: Cleaned.


Date: 07 May 2001
Procedure: 47F capacitor across battery had been installed with the wrong polarity (manufacturing flaw). Flipped.



  Sharp EL-8131
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