SweCRTTester
2026-09-24
SweCRTTester streams test images for aligning old CRT monitors. Horizontal rate, vertical rate, and pixel clock are programmable.
- VGA: RGB 333 plus horizontal and vertical sync
- Composite and S-video through an AD724, on those same video pins
- CGA: RGB, intensity, and sync on their own pins
Hardware on the site is KiCad revision 0.99 (renders, not a photo of a built board yet). Repository: sweproj.com/swecrttester.