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Texas Instruments SR-50

Texas Instruments SR-50

Country/Region china
Company datamath company
Categories Programmable Integrated Circuit
Update 2016-11-29 14:12:29
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Texas Instruments SR-50

Date of introduction:January 15, 1974Display technology:LED modules + lens
New price:$169.95, DM 520.00Display size:10 + 2
Size:5.8" x 3.2" x 1.3"
147 x 81 x 32 mm3
Weight:8.5 ounces, 240 gramsSerial No:211917
Batteries:BP1Date of manufacture:wk 42 year 1974
AC-Adapter:AC9200Origin of manufacture:USA
Precision:13Integrated circuits:TMC0501, TMC0521
Memories:1
Program steps:Courtesy of:Joerg Woerner
Download leaflets:US: 2.2 MByte)
DE: 1.9 MByte)
Download manual:(US: 5.6 MByte)

The wonderful electronic slide rule SR-50 marked a milestone in the history of calculators manufactured by Texas Instruments. It added trigonometric and hyperbolic functions, the logarithms and their inverses to the scientific functions of the SR-10, SR-11 and SR-16 line of calculators. The calculator was placed with big success against Hewlett-Packard's HP-35 and produced in high quantity. The internal construction was very rigid compared with other models. To reduce manufacturing costs and to give a similar appearance to the SR-52 and SR-56 calculators the SR-50 was replaced within 18 month with the SR-50A. Don't miss the rare SR-51.

On a first view the twins SR-50 and SR-50A look similar, but if you use them you'll feel the differences! If you search for the best SR-50, choose a model produced later than July 1974. Engineers at Texas Instruments changed the calculation algorithms and achieved a higher precision. Please find the comparison in the Calculator forensics.
With the TMC0501 building blocks Texas Instruments created a novel architecture for scalable scientific calculators. The architecture used minimum a 2 chip design with the Arithmetic chip and the SCOM (scanning read only memory) but was expandable to a maximum of 8 SCOM's, additional RAM as program memory for programmable calculators, additional RAM for general purpose registers and even a chip driving a printer. Most scientific and programmable calculators from Texas Instruments between the years 1974 and 1982 like the SR-51, SR-60A and TI-59 use these chips. Please find all known calculators using the TMC0501 architecture here. Don't miss the


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