EMI separate luminance experimental camera 80° view   
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A report about the EMI 4 tube separate luminance colour camera demonstrated to the BBC and the EBU delegates was given in the August 1963 journal of the Brit. IRE page 107 &108. It said the 4 ½ inch IO was used for the luminance and three 1 inch Vidicons were used for the chrominance signals.

The BBC research department report No. T-132 deals with the comparisons between different colour cameras.

A discription of the work done by EMI, Marconi and RCA was published in "International TV Review" November 1963, by Charles Taylor FRSA.

Built in six weeks from a standard 4½ inch Image Orthicon camera (EMI203?) and an industrial camera (EMI204?) The Vidicons, type 106767SC, used the light not required by the stopped-down luminance Image Orthicon tube, type 9565.

The lens, a Varotal III was incorperated into the body of the camera in a folded arrangement.

It is said that the experience gained from this camera led to the development of the EMI 2001 camera.

RCA also used this 4 tube arrangement. See TK42