Tracking Chambers Made of Mylar Drift Tubes for Experiments at the Accelerator Complex of the National Research Center Kurchatov Institute–IHEP

The design, procedure of assembling, and tests of drift tubes with the diameter of 30 and 15 mm made of mylar film 125 μm thick covered with aluminum from both sides are presented. The assembly technology of three-layer chambers of such tubes is described and some results showing the technical performance of the chambers are given.