DATAMATH CALCULATOR MUSEUM
Texas Instruments SR-10 Version 2
|Date of introduction:||1973||Display technology:||LED modules + lens|
|New price:||$89.99||Display size:||8 + 2|
|Size:|| 6.3" x 3.1" x
158 x 78 x 38 mm3
|Weight:||9.2 ounces, 262 grams||Serial No:||1023782|
|Batteries:||3*AA NiCd||Date of manufacture:||1974|
|AC-Adapter:||AC9200, AC9130||Origin of manufacture:||Brazil|
|Program steps:||Courtesy of:||Joerg Woerner|
(US: 4.0 MByte)
(US: 3.2 MByte)
(US: 2.6 MByte)
The SR-10 Version 2 could be quite easy distinguished from the SR-10 Version 1: The logo of the first is situated inside the display frame, here it is on the key plate. More important is the display, the second version used a magnifier lens mounted onto the LED modules for better readability.
printed circuit board (PCB) of the second SR-10 looks very similiar to the
original design and uses still two segment drivers and two digit
drivers for the LED-modules. Recently
some more differences were discovered by Kirk B. Muri, the later SR-10
Version 3 removed one
half of the display drivers.
The SR-10 manufactured in Italy for the European market introduced a slightly different design of the housing.
The SR-10 was sold with different nameplates, don't miss the Radio Shack EC-425
and the Montgomery Ward
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.