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Texas Instruments TI-501

Date of introduction:  1982 Display technology:  LCD
New price:   Display size:  8
Size:  4.8" x 2.8" x 0.75"
 122 x 70 x 19 mm3
   
Weight:  2.4 ounces, 68 grams Serial No:  85983509
Batteries:  2*AA Date of manufacture:  1982
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8 Integrated circuits:  Toshiba 
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual: (EU: 3.0M Bytes)

The TI-501 was introduced two years after the TI-1015 and sports a similar calculator chip in a somewhat smaller housing. We can't locate any exciting feature at this calculator.

The TI-50x line introduced some other "economical" calculators like the TI-502, TI-506, TI-507 or the TI-503SV. Another TI-501 appeared 17 years later, view it here.

Dismantling this TI-501 manufactured in 1982 by an unknown OEM in Taiwan reveals a clean design centered around a Toshiba single-chip calculator soldered on a single-sided printed circuit board (PCB) and powered by two AA-sized batteries.

Inspecting the PCB of this TI-501 calculator brought our attention to a small marks reading 807C-2 and we started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.

 



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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, December 5, 2001. No reprints without written permission.