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 Interesting Picture Tube
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 Return to top of page · Post #: 1 · Written at 6:09:35 PM on 8 May 2016.
Labrat's avatar
 Labrat
 Location: Penrith, NSW
 Member since 7 April 2012
 Member #: 1128
 Postcount: 373

This Low-profile Direct-View picture tube is from a monochrome intercom.
The phosphor screen is curved, and the top of the screen is closer to the viewer than the bottom.

I wonder what scan/raster correction is needed, or built into the yolk.

The horizontal output transformer is shown together with a 50 cent coin for a size comparison.

Other tube based intercoms use a mirror angled at 45 degrees to project the picture towards the viewer.
The phase of the horizontal yolk winding must be reversed for correct viewing.

Pictures will be posted in a few minutes.

Wayne.

Picture Tube
Picture Tube
 
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