DATAMATH CALCULATOR MUSEUM |
Goulds Pumpulator by Texas Instruments
Date of introduction: | 1980 | Display technology: | LED-stick |
New price: | Display size: | 8 (5 + 2) | |
Size: | 5.8" x 3.1" x
1.4" 148 x 78 x 36 mm3 |
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Weight: | 4.0 ounces, 114 grams | Serial No: | 2378392 |
Batteries: | 9V | Date of manufacture: | wk 51 year 1980 |
AC-Adapter: | Origin of manufacture: | USA | |
Precision: | 11 | Integrated circuits: | TMC0980 (CD9801) |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner | |
Download manual: | (US: 5.0M Bytes) |
The
Goulds Pumpulator was one of the early customized calculators produced by Texas
Instruments. Basically this calculator represents a Business
Analyst-I but was changed with a custom designed program memory to do be used as a pump calculator for use with
the English system of measurement. A similar
approach was later realized by Jeppesen Sanderson with their Flight Computers,
e.g. the Avstar.
Dennis Belillo gave us some hints about the functions and keys
of this mystery calculator.
psi = pounds/inch squared 1 psi = 70.3089 grams/cm. squared atmospheric pressure is +/- 15 psi at sea level hp (I understand that there is a measure of work called the metric horse power) 1 horse power (as God intended them to be) = 1.0143 horse power metric and 1 hp = 632,800 calorie, grams/hour gpm = gallons / min therefore 1 gpm = 3.7853 liters per minute |
Simply by comparing the designation of the integrated circuits of the entry line "Majestic" calculators, you'll get the all members of this family:
TMC0980 Goulds Pumpulator uses a custom
design ROM (CD9801) Digging deeper into the TMC098x calculator chips you'll locate an OEM-chip used on a TI-30 "clone" manufactured in Hong Kong: TMC0985 Amelia Scientific 2001 |
With the introduction of the TI-58 Texas Instruments created the Solid State Software Modules to customize calculators. Have a look onto the insurance fee calculators from Agrippina, Allianz, Lloyd, LVM, Nordstern or Victoria.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.