with its novel use of a pair of Nixie tubes to indicate the volume to which it has been set. The audio side of the preamp comes courtesy of a four-tube kit from tubes 4 hi-fi, in which we notice ...

The new field of Volumetric Additive Manufacturing (VAM) optically prints 3D structures into a sealed, fixed volume of liquid photosensitive resin via tomographically computed projections. Since resin ...