The Wild T4 Universal Instrument is the largest of the Wild range of theodolites and is used for geodetic triangulation, astronomical observations and-geographical position determinations. Its broken telescope (with 65x magnification) allows comfortable sighting to the zenith.

This Wild T4 micrometer theodolite is the largest of the Wild theodolites and is used for angle measurements of the highest accuracy in 1st order triangulation, tunnel set-out, geodetic astronomy and similar precision applications.

These broken-telescope instruments were used from 1914 to 1960 to determine astronomic latitude and longitude, with a standard theodolite used for astronomic azimuths. Around 1960, the Bamberg was replaced by the Wild T-4, shown in the photo.

The Wild Heerbrugg T4 model theodolite was deemed the Universal Instrument given its ability to be used in both first order geodetic triangulation and astronomical observation. It was the largest and most precise micrometer theodolite ever made.

2019年6月12日 · The Wild T4 is used for geodetic triangulation, astronomical observations, and geographical position determinations. Its broken telescope (with 65x magnification) allows comfortable sighting to the zenith. Circle readings are made with an optical micrometer and by coincidence setting of diametrically opposite graduations.

The Wild T4 Universal Instrument is the largest of the Wild range of theodolites and is used for geodetic triangulation, astronomical observations and-geographical position determinations. Its broken telescope (with 65x magnification) allows comfortable sighting to the zenith.

Der Wild T4 ist ein großes Universalinstrument der Schweizer Firma Wild Heerbrugg. Er ist ein Spezialinstrument für astro-geodätische Messungen; seine Produktion wurde aber um 1980 wegen des engen Marktes eingestellt.

Wild T4 Astronomical Theodolite, c. 1961 Wild, Heerbrugg, Switzerland. No. 80931, large special instrument for astro-geodetic measurements, right-angled telescope with deflecting prism, 65x magnificat. A first edition copy of "The Call of the Wild" by Jack London. 1903. Macmillan Company, New York.

For further information, please visit the homepage of this product. This Product was added to our catalogue on 01/11/2013.

No. 80931, large special instrument for astro-geodetic measurements, right-angled telescope with deflecting prism, 65x magnification, eyepiece with micrometer fine adjustment, 2 rod bubble with mirror, additional hanging bubble in wooden case, objective lens Ø 2 ¾ in., focus length 22 ½ in., horizontal circle Ø 9 ½ in., vertical circle Ø ...