Description: This collector's lot features a vintage Texas Instruments (TI) Converter calculator, originally introduced in 1981. This specialized handheld tool was designed for quick and accurate unit conversions, reflecting the technical needs of the early 1980s. The lot is exceptionally complete, including the original TI Converter unit, a scientific manual, and the "Calculator and Converter Handbook" to provide comprehensive guidance on its technical applications.

Manufacturer: Texas Instruments (TI)

Condition: Used (Items show signs of age and practical use; see pictures for true condition)

Model Number: TI-1890 (Converter)

Extra Notes: The TI-1890 was part of the "Slimline" series, noted for its compact LCD display and specialized conversion functions. Finding these units paired with both the scientific manual and the supplemental handbook makes this a great find for enthusiasts of 20th-century computing history.

Manufactured In: United States