The TTCRT: Thermal-transmission cathode-ray tube for thermal printing

We propose a new kind of cathode-ray tube, namely, the thermal-transmission cathode-ray tube (TTCRT). In the TTCRT the electron beam focused to a small spot is called upon to heat in sequence small elements of a matrix that constitutes the faceplate of the tube. A heat-sensitive or thermal paper passed across the screen and maintained in contact with it, and outside the tube, will record characters and dot patterns generated through suitable two-dimensional deflection of the electron beam. We give a description of the main parameters regulating the performance of the TTCRT.