Special thanks to C. Allen for creating this masterpiece
Source: https://www.youtube.com/watch?v=_6a_nz4uRd0
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https://www.youtube.com/watch?v=7kvy_7ZIgBw
Project page: https://oshwlab.com/radiohonza/icntsccolrtelv1
Composite video to field sequential video converter allows monochrome (black and white) CRTs and other displays to display color video when a synchronized colorwheel or a color shutter is placed in front of them.
0:00 - Doom in field sequential color
1:42 - Setup overview
2:40 - Making the colorwheels
4:25 - Testing the colorwheel
4:43 - Field sequential color converter details
5:04 - Motor driver details
Music:
Doom OST - At Doom's Gate (Doom gameplay)
3FORCE - Midnight Overdrive
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https://www.youtube.com/watch?v=HRdkIzKK49I
60fps drive footage https://www.youtube.com/watch?v=--_S4zJx-hA
My friend Lukáš Roun (he wanted to be mentioned lol) loaned me his GoPro to get some decent footage.
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https://www.youtube.com/watch?v=PaJb85vQF40
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
Project page: https://oshwlab.com/radiohonza/ezvideo2oscilloscopev1
Using the converter to display video on a lot of oscilloscopes:
https://www.youtube.com/watch?v=njEkLG5BcAE
The goal of this project was to display video on an oscilloscope without the requirement of external Z modulation input.
As for accomplishing the goal, the project is a major success as the resulting video converter allows to display the converted signal on an oscilloscope without the need for a Z mod input, as well as without the need for X input, since the X ramp/sweep is generated by the already present time base which is triggered by video sync pulses.
The principle lies in using a PWM square wave superposed onto a vertical scan ramp which results in two drawn fields stacked on top of each other. The bottom field is the primary output image and the upper field happens to be the inverted image (blacks are white and vice versa) of the bottom field, which is caused by the principle of using PWM to make the trace stay at the lower field when a white is desired, or having the trace jump to the upper field when a black is desired. By changing the duty cycle of these jumps the perceived brightness of the trace can be continually changed, just as modulating the cathode current in the CRT would, only in this case it remains constant.
0:00 - Demonstration
0:55 - Connections
1:22 - Converter details
1:37 - PCB milling
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https://www.youtube.com/watch?v=WA3wVeEenrk