X-RAY TUBE, ROENTGEN (0635) For use with electronic machine or induction coil, with vacuum regulating device. Comprises a glass sphere with a concave disc electrode generating cathode rays and focusing it on a tungsten target, placed at an angle of 450 at the inner end of arm exactly opposite. These tubes produced soft X-Rays and care must be taken from over exposure. Available in tube sizes (diameter) Qty :