The TK-42 uses a separate
high resolution I.O. tube for luminance, claimed to give compaterable
pictures equal to the best monochrome cameras. The three vidicon's providing
the colour information. It was fully transistorized except for the high
voltage components. The Lens was built-in and had 4 range extenders
that gave a total range of 1.6 to 40 inches. There are a large number
of set up controls behind a panel at the rear of the camera.
It is interesting to note that RCA was successfully
selling this camera as late as 1965 onwards in the face of the competitor
from Philips Plumbicon cameras. BS.