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How do you communicate directly to video signal on a CRT television like this? Answered

Here is this great artist who is sending 1-bit video signals to televisions to create patterns
http://www.tristanperich.com/#Artwork/1_Bit_Video

How is this accomplished? I've used a library for Arduino that allows for this but I think the artist is doing it in a much more fundamental way. Can you simply send an oscillation to the video in on a TV?

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user
Josehf Murchison (author)2014-03-13

Yes you can send it buy bypassing the vertical input search CTR oscilloscope.

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iceng (author)Josehf Murchison2014-03-14

OP did not understand a clear reference to

Google "CRT oscilloscope" for his self edification.

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prismspecs (author)iceng2014-03-14

I understand how to turn it into an oscilloscope but how does one avoid making it look like a wave pattern and just draw to the screen?

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user

Google Oscilloscope clock there are hundreds on the net.

It is the same principle to make it do any pattern.

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iceng (author)steveastrouk2014-03-14
user

I don't want to sound rude so I will just say prove it, because I am within ten feet of more than twelve.

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user

I mean, its a technology which was wonderfully hackable and flexible, and its now passing. TVs don't use 'em, scopes don't use 'em anymore.

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user

I use them I have 3 Tektronix Oscilloscopes 531, 545, 547 then I have Heathkit's, Eico's, and Sencore's as well as spare parts.

I know newer equipment do not use CRTs however prismspecs asked about a specific project by an artiest that used a CRT TV.

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user

Darn I just realized I got that backwards CRT.

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user

These are not my Instructable but the basic principle is the same as one I am working on for a real time oscilloscope. The last one is mine it is a real oscilloscope made by me.

https://www.instructables.com/id/TV-OSCILLOSCOPE/

https://www.instructables.com/id/DIY-Oscilloscopes/

https://www.instructables.com/id/Building-a-Digital-Oscilloscope-from-a-DIY-Kit/

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