Welcome to Australia's only Vintage Radio and Television discussion forums. You are not logged in. Please log in below, apply for an account or retrieve your password.
Australian Vintage Radio Forums
  Home  ·  About Us  ·  Discussion Forums  ·  Glossary  ·  Outside Links  ·  Policies  ·  Services Directory  ·  Safety Warnings  ·  Tutorials

Tech Talk

Forum home - Go back to Tech talk

 Interesting Picture Tube
« Back · 1 · Next »
 Return to top of page · Post #: 1 · Written at 6:09:35 PM on 8 May 2016.
Labrat's avatar
 Location: Penrith, NSW
 Member since 7 April 2012
 Member #: 1128
 Postcount: 290

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.


Picture Tube
Picture Tube

« Back · 1 · Next »
 You need to be a member to post comments on this forum.

Sign In

 Keep me logged in.
Do not tick box on a computer with public access.