Video Asylum

Posted by Tech on January 10, 2001 at 23:09:50:

In Reply to: make your own projections posted by Beltway 8 on January 09, 2001 at 23:12:12:

Yes, you can. You need a special reflective display to project to. You need big lens to focus the picture. All of this is found on regular slide projectors and can be used for this purpose.
The modification required on TV set are very simple. You need to reverse wires for vertical and horizontal deflection. Not to switch them among themself but to reverse vires independantly for vertical and horizontal. Four wires in total is here. This will flip picture upside down and also from left to right.
If you do not do this and just flip over a TV, picture will look like in mirror and you can not read from it.
Now, you place this big lens infront the tube and move it of the tube untill you get the picture on the screen. Make some fixture to hold all this in place and you are done.
Sounds simple, but actually very dificult to achieve.
This entire set (with circuitry to flip the picture, so you do not open you TV) can be bought. And works good. But I don't know where to buy it.