An oscilloscope trigger for vintage video processors

[neusse]

This looks interesting

An Oscilloscope Trigger For Vintage Video Processors

Working on retro computers is rarely straightforward, as [ukmaker] recently found out while designing a new display interface. Their oscilloscope was having trouble triggering on the video signal p…

hackaday.com

Working on retro computers is rarely straightforward, as [ukmaker] recently found out while designing a new display interface.
Their oscilloscope was having trouble triggering on the video signal produced by older video circuitry, so they created the Video Trigger for Retro computers.

 

[skate323k137]

LM1881s are godsend ICs in retro gaming and arcade stuff. It's probably not news to most here that they are often used to extract sync signals from composite video, specifically in SCART cables where the composite video is used as sync for the RGB signal present on the same connector. Many monitors can handle it, many can't. But I have also used them very successfully when upscalers struggle with what is supposed to be clean composite sync, but isn't so clean. So I suppose if you [just] need timing and a device is struggling, I could see how this could help. It seems like a pretty well designed little helper.