The CLEO II charged particle tracking system consists of three nested cylindrical drift chambers in a 1.5 Tesla solenoidal magnetic field, all centered on the colliding beam axis. The wires are 15 m gold plated tungsten.
All wires are axial, parallel to the magnetic field and the nominal beam axis.
The radii of the wire layers start at 4.73 cm and run to 7.23 cm. The azimuths of the wires are stepped by half a wire spacing from each layer to the next. The length of the wires is 25 cm. The maximum drift distance for the average tube is 0.29 cm. All wires are axial.