Project page: https://oshwlab.com/radiohonza/icntsccolrtelv1
Previous version: https://www.youtube.com/watch?v=CmkWy7G6pMs
Doom in color on worlds smallest CRT: https://www.youtube.com/watch?v=HRdkIzKK49I
0:00 - Setup overview
0:45 - Principle
0:58 - Shrek in sequential color
5:17 - Converter overview
5:36 - Sony Vegas field sequential video smoothing
Music:
Lost Years - Converter
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https://www.youtube.com/watch?v=tuemNKdOgwg
How to https://www.youtube.com/watch?v=UZapLL3Qa-I
Doom in color: https://www.youtube.com/watch?v=HRdkIzKK49I
Using a HDMI to Scart converter and a home built composite video to XYZ converter I managed to play newest Doom Eternal on an Oscilloscope screen.
Special thanks to youtuber w2aew.
Music is At Doom's Gate - A Synthwave DOOM Cover by Powerwalker
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https://www.youtube.com/watch?v=QEV6TknjaHQ
How to: https://www.youtube.com/watch?v=UZapLL3Qa-I
Doom in color: https://www.youtube.com/watch?v=HRdkIzKK49I
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https://www.youtube.com/watch?v=OU16lIx_pC8
Refined version: https://www.youtube.com/watch?v=tuemNKdOgwg
Doom on world's smallest CRT: https://www.youtube.com/watch?v=HRdkIzKK49I
Inspiration: http://www.hawestv.com/mtv_color/colr...
Project schematic: https://oshwlab.com/radiohonza/transistorspalcolrtelv1
In this video I grant a small monochrome CRT from portable TV the ability to display color image using a rotating color wheel and circuitry similar to the Col-R-Tel color adaptor from the 1950s.
The Col-R-Tel module is built using purely transistors, no ICs, and with easy to get components. Its principle lies in demodulating only one color signal at the time, based on the filter color in front of the CRT. This is done through switching different carrier (color burst) phase offsets coresponding to R-Y (90°), B-Y(0°) and G-Y(236°). The selected carrier phase is summed with the chroma contained in the NTSC videosignal resulting in an AM signal amplitude of which is corresponding to the demodulated color difference signal level. This AM signal is then simply detected by a synchronous detector, combined with the luminance in videosignal and sent to the CRT.
The module also contains a vertical sync separator, off delay (for achieving dutycycle around 50%) and a simple phase comparator comparing vertical scan frequency with the wheel speed giving off a PWM signal for motor speed control. By spinning the wheel at speed exactly the same as the vertical refresh of the video signal (in vertical sync) and each time displaying different of the 3 RGB components we achieve full color image.
0:00 - Converter details
0:24 - Shrek in field sequential color
2:37 - Setup overview
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https://www.youtube.com/watch?v=CmkWy7G6pMs
Full video: https://youtu.be/RrQma0Ku8Hk
Playing oscilloscope music on an analog oscilloscope versus on a digital oscilloscope.
Special thanks to C. Allen for creating this musical and visual masterpiece
Source: https://www.youtube.com/watch?v=_6a_nz4uRd0
#shorts
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https://www.youtube.com/watch?v=8VuEpDBNNJM
I got SJ9000 off ebay http://www.ebay.com/itm/4K-Ultra-HD-SJ9000-WiFi-Sport-Action-2-0-Camera-Waterproof-1080P-DV-Cam-/182374438196?var=&hash=item2a765d1534:m:m34ZY61tZ0uNOj2NMOt0Itg
so I decided to test it in terrain with 720p 60fps footage (4K doesn't work because I have a slow memory card)
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https://www.youtube.com/watch?v=v526AneCiOo