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Attached are two pictures taken off a screen showing the standard setup chart for the era of this TK-31. The numbers show the placement of the various geometric sections of the image from the camera. Disregard the various shading errors. They come from a tired IO and in Sections 2 thru 4 represent distinct shifts in gain caused by the distorted sweep which is the subject of this inquiry.
Section 1 is correct geometry.
Section 2 is highly distorted but can be altered but not corrected by adjustment of the horizontal linearity control.
Section 3 is extremely compressed.
Section 4 a mirror image of Section 3.
A large drawing of the camera's schematic is also attached.
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