DATAMATH CALCULATOR MUSEUM
WG&L tax planner calculator by Texas Instruments
|Date of introduction:||1982||Display technology:||LED-stick|
|New price:||Display size:||10 (8 + 2)|
|Size:|| 6.4" x 3.2" x
162 x 81 x 37 mm3
|Weight:||8.5 ounces, 240 grams||Serial No:||7676237|
|Batteries:||BP1A||Date of manufacture:||wk 36 year 1981|
|AC-Adapter:||AC9131||Origin of manufacture:||USA (ATA)|
|Precision:||13||Integrated circuits:||TMC0501E, TMC0591, CD2400, CD2401 TMC0573, TC5047|
|Program steps:||480-0||Courtesy of:||Joerg Woerner|
The innovative TI-58 was the perfect base for a lot of customized calculators. The idea behind these products was the novelty of the Solid State Software Modules™ with up to 5000 program steps.
tax planner application was developed in 1982 by Warren,
Gorham & Lamont, Valhalla NY (WG&L) and programmed by Texas
Instruments into a Solid State Software Module. Please notice the © 1983, 1984
date of the module. These modules were probably changed every year due to updates in the tax calculation
process and WG&L introduced in 1985 with the incotax
calculator a more flexible approach.
Dismantling the tax planner calculator reveals a standard TI-58C calculator manufactured in Summer 1981. It is one of the earlier models, the printed circuit board (PCB) of the calculator was manufactured in Canada.
Compare the WG&L tax planner with a similar product by the insurance companies Agrippina, Allianz, Lloyd, LVM, Nordstern and Victoria or the Bossard screwing joint calculator. Even the French carmaker Chrysler-Simca used the TI-58, don't miss the Chrysler Credicavia. Don't miss the USMC HARRIER flight computer based on the TI-58 calculator, too.
A colorful calculator appeared with the Pool
Water Analysis module.
Gorham & Lamont, Valhalla NY was founded in the 1950s, but traces its roots
back to 1882, when Willard Warren started a weekly, the Connecticut Real Estate
Record and Building News (later and still today, The Commercial Record). The
Thomson Corporation acquired Warren, Gorham & Lamont (WG&L) in 1980. For
more than three decades, WG&L was a major information source for finance
professionals in companies of all sizes and industries. The WG&L product
line includes some of the most valued newsletters, journals and treatises in the
legal, tax and accounting fields. WG&L remains one of the most respected
brands in the industry. In 1996, the tax publishing activities of Warren, Gorham
& Lamont were merged with RIA.
WG&L ® is a trademark
Gorham & Lamont, Valhalla NY.
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© Joerg Woerner, May 7, 2008. No reprints without written permission.