Dave tears down a vintage 1984 Sinclair FTV1 / TV80 pocket TV and explains how the innovative 3 deflection system flat screen CRT works.
Service Manual with schematics and theory of operation:
http://eevblog.com/files/Sinclair_FTV1.zip
Original scan of service manual:
http://www.nightfallcrew.com/wp-content/uploads/downloads/2013/10/Service-Manual-Sinclair-FTV1-FTV2.pdf
Flickr Photos: http://www.flickr.com/photos/eevblog/sets/72157638306245666/
Info page: http://www.thevalvepage.com/tv/sinclair/ftv1/ftv1.htm
Guy who worked on the CRT: http://www.youtube.com/watch?v=VB7RgVqTgXI
Forum: http://www.eevblog.com/forum/blog/eevblog-554-sinclair-ftv1-tv80-flat-screen-pocket-tv-teardown/'>http://www.eevblog.com/forum/blog/eevblog-554-sinclair-ftv1-tv80-flat-screen-pocket-tv-teardown/
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Electronics Info Wiki:
http://www.eevblog.com/wiki/
Service Manual with schematics and theory of operation:
http://eevblog.com/files/Sinclair_FTV1.zip
Original scan of service manual:
http://www.nightfallcrew.com/wp-content/uploads/downloads/2013/10/Service-Manual-Sinclair-FTV1-FTV2.pdf
Flickr Photos: http://www.flickr.com/photos/eevblog/sets/72157638306245666/
Info page: http://www.thevalvepage.com/tv/sinclair/ftv1/ftv1.htm
Guy who worked on the CRT: http://www.youtube.com/watch?v=VB7RgVqTgXI
Forum: http://www.eevblog.com/forum/blog/eevblog-554-sinclair-ftv1-tv80-flat-screen-pocket-tv-teardown/'>http://www.eevblog.com/forum/blog/eevblog-554-sinclair-ftv1-tv80-flat-screen-pocket-tv-teardown/
EEVblog Main Web Site:
http://www.eevblog.com
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http://astore.amazon.com/eevblogstore-20
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Done.
Ch 21 – 69 is standard UHF channel numbering
Amazing !!! I have to think this as something like an 3d electron hologram, they though in the 3rd dimension. What material is that transparent tin oxide electrode?
The line output transformer was responsible for EHT via the large overwind, and the yoke drive for the horizontal coil. It even ran some secondary supplies. They worked it hard. It also had a tiny loop of wire around the core which fed back to the power supply to sync the p/s transformer switching so that the two didn't run out of phase and do your head in with a dual 15khz swimming effect
Definitely high on the Bobby Dazzler-scale
Great video thanks for the teardown. Is that a serial number printed with silver metallic paint on the CRT tube? Interesting…..😁
indium tin oxide?
Made to a surprisingly high standard of quality for a Sinclair product. I remember them as usually being really cheap and nasty (which was oddly almost part of their charm!)
the 80s were great for british innervation , what happened ….
I have one of these and the output on it is kind of funky. It almost looks like it's got a "underwater" effect. I've yet to take it apart and screw around with it, but if you happen to have any insight would be much appreciated.
Dave you could get a battery out of a used Polaroid camera film pack
what are the white and black things next to the multiplier?
are you fix it to work again??📺📺
I have a intercom system with a similar flat CRT screen. The screen panel is slightly curved and there is no lens over the panel.
Geez that's just so cool it's only there was only a slightly bigger one then I might be able to use it whenever I build some kind of pit boy to put on my arm as a prop I can use to display to actually display stuff that would be awesome
Super cool but Fresnel is pronounced "Frenel". I worked in a luminaire shop for a few years. I caught shit when I first said it wrong. Cheers.
No video here just a black screen
I just bought one. I'm going to put a LCD & Raspberry Pi in.
This unit would work in any country that used PAL broadcast transmission on the UHF band. At the time of release, the UK had almost exclusively switched to UHF TV broadcast and some countries dipped their toe in the water. In Australia (Melbourne, at least), SBS was eventually transmitting on UHF Channel 28 and community TV on UHF channel 31. This Sinclair unit should have been able to receive and display both of these broadcast channels.
Hehe. "Sucked out the vacuum…"
Sucked out the air and left a vacuum?
Great video. Very enjoyable to see these offshoots of the crt technology.