• Schematic v1.1 and board v1.1 layout in EagleCAD format (CC BY-SA, see files) - Click "Download" in the top right to download
• Enclosure in SVG format (CC BY-SA) cut from 3mm acrylic - Click "Download" in the top right to download

This is the prerelease design, none were sold, use only the files above for reference/manufacture!

• Schematic v1.0 and board v1.0 layout in EagleCAD format (CC BY-SA, see files)

• The latest Firmware (MIT license, check the files)- Click "Download" in the top right to download

Dieter (tube-tester.com) has a fantastic 'mini datasheet' of the IV-18