DATAMATH  CALCULATOR  MUSEUM

Texas Instruments TI-65 Technical Analyst   

Date of introduction:  1987 Display technology:  LCD
New price:  $80.00 (SRP 1988) Display size:  10 + 2
Size:  3.5" x 5.7" x 0.8"    
Weight:  4.0 ounces Serial No:  
Batteries:  2*LR44 Date of manufacture:  wk 13 year 1988
AC-Adapter:   Origin of manufacture:  Italy
Precision:  13 Integrated circuits:  CD4805, CD4806
Memories:  1-16    
Program steps:  100-0 Courtesy of:  Joerg Woerner
Download leaflet:   (US: 1.1 MByte)    

TI-65_P1.jpg (379468 Byte)The TI-65 Technical Analyst is a quite interesting calculator within the Galaxy-line. In addition to the functions of e.g. a TI-37 Galaxy it adds both programmability and a timer function. The resolution of the timer is one second, the maximum time before an overflow occurs about 40 hours. 

From the technology this calculator is a mixture:

Housing similar to the Galaxy
Keys like the later TI-68
Calculator chips from TI, not Toshiba

TI-65_PCB.jpg (100783 Byte)Compare this calculator with the silver TI-62 Galaxy

If you are interested in the calculating accuracy of scientific calculators don't miss the Calculator forensics.


The TI-65 Technical Analyst is featured in the Texas Instruments Incorporated bulletin CL-947A dated 1987 and Texas Instruments France SA leaflet ECD044F dated 1987.

 

horizontal rule

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

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