Louis Zezeran

In today’s article I will show you how to piece together composite and s-video output from the GBS-Control. I’ll do this by using the “VGA->Composite/S-Video adapter” by Antonio Villena.

Lets start by looking at the adapter by Antonio. It is a small and relatively affordable device to allow s-video and composite from a MiSTer. You plug this into the IO board and you get a small switch for PAL or NTSC output.

The signal coming from the MiSTer is just RGBs, so 1 pin for red, 1 for green, 1 for blue and one for sync. The adapter has some components which do the work of converting RGBs into s-video and composite. To enable this, the adapter also needs 5v on VGA pin 9.… Read the rest

Today, Steve I released this week’s episode of the Cathode Ray Podcast with Aussie Dan Mons, creator of RetroNAS and man who (probably) has more CRTs than you.

Beside being a Linux wizz who has assembled the amazing new RetroNAS project, Dan has a long history within the movie production and VFX industry. He regails us with stories about CRT color calibration.

The RetroNAS project: https://github.com/danmons/retronas
Dan on Twitter: https://twitter.com/_daemons

In my previous blog I showed you how to make a dongle which converts RGBHV to RGBs. We saw that this was very useful for use with a GBS-Control. Due to the system’s off the shelf hardware, it only outputs RGBHV and if you want to use the signal on a regular 15khz CRT, you are going to need RGBs.

There are other uses for this dongle too. Another great use case is paired with a Time Sleuth for testing 480i and 240p on CRTs.

The Time Sleuth was created by Dan “citrus3000psi” and is a monitor lag tester. It generates it’s own test pattern over HDMI. You then plug that into your TV and hold the device up to the screen.… Read the rest