Texas Instruments SR-11 Version 2

Date of introduction:  September 11, 1973 Display technology:  LED modules + lens
New price:  6,300 pts (Oct. 1974) Display size:  8 + 2
Size:  6.3" x 3.1" x 1.5"
 158 x 78 x 38 mm3
Weight:  9.2 ounces, 262 grams Serial No:  166658
Batteries:  3*AA NiCd Date of manufacture:  wk 40 year 1974
AC-Adapter:  AC9200, AC9130 Origin of manufacture:  USA
Precision:  8 Integrated circuits:  TMS0602
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 5.2 MByte)

SR-11-V2_DISP.jpg (27050 Byte)During its manufacturing time the LED-display of the first SR-11 was revised from the original 6-digit modules to 12 discrete modules. We know the same step from the SR-10 Version 1 to the later SR-10 Version 2.

SR-11_PCBB.jpg (79555 Byte)Everything else kept unchanged and therefore the inside view of the SR-10 and its successor SR-11 still look very similar. Please  compare them yourself.

Press the X-RAY button and view the internals of a late SR-11.
 (Pictures provided by Edward Soudentas)

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If you have additions to the above article please email:

Joerg Woerner, September 23, 2003. No reprints without written permission.