a color display device of the type wherein the color of {HEAD ~ light} emitted by {TAIL ~ a phosphor screen} is changed in accordance with an electron accelerating voltage applied thereto 
a color display device of the type wherein the color of { HEAD ~ light } emitted by { TAIL ~ a phosphor screen } is changed in accordance with an electron accelerating voltage applied thereto
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH