DATAMATH CALCULATOR MUSEUM
Texas Instruments SR-56
|Date of introduction:||May 21, 1976||Display technology:||LED-stick|
|New price:||$179.95, DM 598.00||Display size:||10 + 2|
|Size:|| 5.8" x 3.2" x
147 x 81 x 32 mm3
|Weight:||8.5 ounces, 240 grams||Serial No:||051742|
|Batteries:||BP1A||Date of manufacture:||wk 50 year 1976|
|AC-Adapter:||AC9130A||Origin of manufacture:||Brazil|
|Precision:||12/13||Integrated circuits:||TMC0501, TMC0537, TMC0538, TMC0599|
|Program steps:||100||Courtesy of:||Joerg Woerner|
|Download leaflet:||(US: 7.6M Bytes)||Download manuals:||
(US: 15.0M Bytes)
(US: 13.1M Bytes)
(US: 26.8M Bytes)
SR-56 was manufactured in Brazil
and seems to be identical with the US-manufactured models. The
backside of the calculator sports a bold sticker with the serial number
and country of origin and a Date code with
"CIB" for Texas Instrumentos Eletrônicos do Brasil Ltda. -
Campinas. Later Texas Instruments calculators sold in Brazil like the SR-40
LCD were assembled by Indústrias
Gerais da Amazonia S.A..
Dismantling the SR-56 reveals a well known printed circuit board (PCB), we noticed no differences to the US-built models.
Don't miss the later TI-30 and Money Manager manufactured in Brazil, too.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, November 11, 2009. No reprints without written permission.