by kd6cji » Tue Dec 03, 2013 1:30 am
Have not been active with NBTV for a while, but finally got some free time at hand and build a monitor with 15" disk from club sales. Had to tweak quite a bit with motor control board components to achieve stable sync, but now everything is working and I am pleased with the quality of video monitor displays. Disk is superb! Using a single 5 watt white LED as light source and a piece of a tracing paper as a diffuser. Here is some pictures. I chose horizontal scanning this time and 15 fps scanning speed. To produce video for monitor, I wrote a program that runs on my MacBook Pro. Program can convert live video, movie files, still image files, slideshows to nbtv video in various formats (24, 30, 32, 45,48 lines - 12.5 and 15 fps, horizontal and vertical scan), can add scrolling text in small, medium or large size to the video, also produces some test signals. Just noticed that the picture of monitor is rotated in the post...
Thanks and best regards,
Sergei KD6CJI
- Attachments
-
- picture taken with iPhone with magnifying lens removed from the viewer
- photo.JPG (36.85 KiB) Viewed 17311 times
-
- Monotor displaying test card. Shot through the magnifying lens, hence distortions
- photo 2.JPG (105.98 KiB) Viewed 17311 times
-
- IMG_0689.MOV
- playing a movie
- (3.05 MiB) Downloaded 697 times