Texas Instruments SR-16 II

Date of introduction:  August 1975 Display technology:  LED-stick
New price:  $49.95 Display size:  8 + 2
Size:  5.8" x 3.2" x 1.3"
 147 x 81 x 32 mm3
Weight:  5.7 ounces, 163 grams Serial No:  187318
Batteries:  3*AA Date of manufacture:  wk 48 year 1975
AC-Adapter:  AC9180 Origin of manufacture:  USA
Precision:  8 Integrated circuits:  TMS1016
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

The SR-16 II followed soon in the steps of the rare and wonderful SR-16. It uses a very similar housing to the SR-50A but gave a cheap appearance with the few black keys and the printed keyplate. The rare SR-40 prototype was sandwiched between the SR-50A and SR-16 II. 

This calculator gave a first view into the future of Texas Instruments - the TI-30.

A rare sibbling of the SR-16 II was sold with the CONCEPT III. All three known CONCEPT models based on Texas Instruments calculators seem to be very rare, don't miss the CONCEPT I and CONCEPT II.

You'll find similar calculators in the Basic-Album, view for example the TI-2550 II. Very unusual is the poor calculating precision, the internal resolution is only 8 digits. If you are interested in the calculating accuracy of scientific calculators don't miss the Calculator forensics.

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If you have additions to the above article please email:

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