DATAMATH  CALCULATOR  MUSEUM

WG&L incotax calculator (1983,84) by Texas Instruments

Date of introduction:  1981 Display technology:  LED-stick
New price:   Display size:  10 (8 + 2)
Size:  6.4" x 3.2" x 1.5"
 162 x 81 x 37 mm3
   
Weight:  8.5 ounces, 240 grams Serial No:  4249533
Batteries:  BP1A Date of manufacture:  wk 05 year 1981
AC-Adapter:  AC9131 Origin of manufacture:  USA (ATA)
Precision:  13 Integrated circuits:  TMC0501E, TMC0591, CD2400, CD2401 TMC0573, TC5047
Memories:  0-60    
Program steps:  480-0 Courtesy of:  Joerg Woerner

TI-58C_Incotax_2_BACK.jpg (546357 Byte)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.

The incotax application was developed by the Bureau of National Affairs, Inc., Washington D.C. to calculate Federal Income Taxes and distributed by Warren, Gorham & Lamont, Valhalla NY (WG&L).

Dismantling the tax planner calculator reveals a standard TI-58C calculator manufactured in February 1981.

Don't miss the 82' edition of the WG&L incotax calculator and the WG&L incotax 1985 calculator sporting an external program module.

WG&L

Warren, 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 of Warren, Gorham & Lamont, Valhalla NY.

horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, February 8, 2010. No reprints without written permission.