Schiit Lyr 3 tube guard

This is a vacuum tube/valve guard for the Schiit Lyr 3 headphone amplifier. I included a 50mm guard that can fit any 6SN7 tube and a 72mm guard that can fit 7n7 tubes with adapter. There's also a 50mm variant that doesn't have horizontal column supports; this model doesn't require bridging to print.

Installation requires no tools - you just place it over your tube socket hole and insert the pegs into the ventilation holes to keep it centered.

The guard is light-duty only and held in place