Early Broadcast Equipment Diamond Power 300 CameraCourtesy of George Lemaster The model 300 is was an industrial televison camera using a image dissector tube. It was made in about 1949 by Diamond Power Co., located in Lancaster, Ohio. The image dissector tube was also made by Diamond. The camera was designed by the Capehart-Farnsworth Corp. of Ft. Wayne, Indiana. Thanks to Richard Hertel for providing pictures and technical papers. The camera itself has only two tubes in it, as video amplifiers, plus the dissector tube. The monitor contains the horizontal and vertical sweep, additional video amplification and the high voltage power supply for the 10FP4 CRT. The power unit contains the horizontal and vertical oscillators, HV supply for the image dissector, and a blanking mixer. Invisible text to format smartphones. xxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx |