Steve Anderson wrote:I'm astounded by the effort quite a number have put into this thread.
For years I have had mechanical SSTV on a back-burner, though only in my head. Harry (especially), well done. Other contributors also muchly thanked.
I had always intended to attack this from the 'camera' end first, but my thoughts and scribbles on paper have come to nothing more than just that.
With my impending return to the UK about a week away and my workshop effectively mothballed I'm not going to able to add much here.
Thanks again to those that can.
Interested? You bet!
Steve A.
Hi Steve
good to see your back till the next trip !!!!i was thinking you might enjoy the schematics sstv monitors from the 73 magazine i really like the p7 8 sec monitors sort of lost it for me when it was dropped for ic's scan converting ....
I know the qsl magazine has a few monitors but the pdf's are not free for download and they don't seem to use pay pal which is a pain for me .
Thats interesting you had wanted to make one as you saw in my posts it had been done in the 70s via paper .
I had not thought of a camera mainly the lazy factor since i have a signal
via pc .
Was your monitor idea via paper ?
Since doing this and reading viewing stuff i think a good way to do it still using the glow paint ink what ever on paper rotating flat via 2 rollers just going around in a circle like a slow belt sander ...8 sec speed .
For the 16hz horizontal i am thinking of a light screw helix this is just above the the paper with a mask slot between it and the paper so as the horizontal drum rotates ,under the slot the a light dot is just seen moving across the paper painting light lines onit....nice and close just another idea thinking about it .
I now have my 50mw blue laser i tried it on the glow paint it works think it is close to the frequency the paint glows, my laser running at 405nm...i think its close to uv ...
OH and i also have laser gloggles now feel a bit safer playing with them .
BTW they do sell uv luxeons which is interesting .
Since i have this now i will do some testing but i really would like the laser dot smaller its a bit thick for 120 lines about spot on for nbtv but .
I might as well try it in the rotating drum and see how well it does with out the lens and just using the rotating drum dvd lens...we will see.
With the experiments i have done prelaser the light +lens or hole with light behind it needs to be close to the glow paint surface or you loose the effect of a long Persistence Glow....with the laser i hope to over come this distance from the paint problem .and we are talking getting past a mm or so .
I have been side tracked of late putting my laser luxeon pwm circuit in a case and putting a motor control board in another case ,i will get back to the tests soon.
Have you noticed my Avatar picture it will never work the people at secret life of machines got it the wrong way around.