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dalekmoore2007 21st Mar 2021 2:13 am

My multi system VCR139 CRT monitor
 
3 Attachment(s)
I Started this monitor in 2017 and experimented in higher line rates other than standard NBTV 32 line 12.5 rates
Did a fair bit of work with this little CRT build is here
http://www.taswegian.com/NBTV/forum/viewforum.php?f=31
We have FreeNBTV software can use any thing you want line rates up to 240 line found here
http://www.taswegian.com/NBTV/forum/...=2458&start=45
Well only limited to the bandwidth of your sound card so that limits you to the video quality not the line frame rates ...so what i did to keep the video Quality with the bandwidth possible for the highest line rate was drop the frame rate below is 240 line 2 hz image is still viewable sort of a cross between SSTV and NBTV .
I call it SNBTV ; ) slow NBTV ! short you tube video below and camera results slow enough for the cameras shutter to pick up all the image .
https://www.youtube.com/watch?v=4qoeoWDusQI

Ed_Dinning 21st Mar 2021 9:52 am

Re: My multi system VCR139 CRT monitor
 
Good pictures, will you go up to a supersized VCR97 next ?

Ed

dalekmoore2007 22nd Mar 2021 10:05 am

Re: My multi system VCR139 CRT monitor
 
2 Attachment(s)
Quote:

Originally Posted by Ed_Dinning (Post 1355576)
Good pictures, will you go up to a supersized VCR97 next ?

Ed

Yes i am going bigger i am going to use my 60s dead scopes CRT a GEC 1025 H i have data for the GEC 1000 H which looks the same least pin out is i will have to adjust work it up to working condition trail and error lets hope not to much error !

If it works out and i can power this beast it has 2 electron guns and 2 deflection plates i might be able to do what i am doing here on my binocular monitor
on one crt
https://www.youtube.com/watch?v=NnOemQof-6U
But i want to go 120 180 240 with low band width select as in low 2 hz frame rate since i don't have a system converter and i can make the video on the pc and use its sound card be horizontal scanning


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