Theodolite TB-1 1970 USSR Rarity Vintage geodesic tool New with Box

Description

Theodolite Tacheometer who is 50 years old and he has never been in operation now. This is a unique exhibit in any collection. The box contains all additional parts and a set of tools. I am sure it will decorate any collection of Geodetic instruments.
Box dimensions -Height 35 centimeters, 20/30 centimeters wide and length.
Theodolite Height 36 Centimeters
DESCRIPTION
Optical theodolite TB-1 is designed to measure horizontal and vertical angles in the development of triangulation of 3-4 classes and geodetic networks for special purposes. It makes it possible to perform polygonometric work on a three-tripod system both during the day and at night. This device is a close copy of the German Th40 theodolite by Carl Zeiss Jena.
SPECIFICATIONS
Standard deviation of measurement in one step, horizontal angle - 2-3 ", zenith distance - 3-4".
- increase - 25.6x;
- field of view - 1 ° 30 ′;
- light lens diameter 40 mm;
- exit pupil diameter 1.5 mm;
- the smallest sighting distance - 1.2 m;
- horizontal limb diameter -85 mm;
- vertical limb diameter - 75 mm;
- rangefinder coefficient - 100;
- eyepiece magnification - 25.5x;
- lens focal length - 250 mm;
- focal length of the eyepiece - 9.8 mm.
Optical plummet:
- magnification - 1.4x;
- field of view - 8 ° 17 ′;
- exit pupil diameter - 3.6 mm;
- removal of the exit pupil - 11 mm;
- the smallest sighting distance - 0.7 mm.
Value of division:
- vertical limb - 20 ′, horizontal - 20 ′;
- micrometer scale - 1 ″;
- the cylindrical level of the horizontal circle alidade - 20 ″;
- the cylindrical level of the vertical circle - 25 ″;
Weight:;
- theodolite - 5.3 kg;
With a box of 9.3 kilograms.
Payments:
PAYPAL:
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Payment must be made within 5 days after the auction is closed
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