Vacuum tube
5 Iron plate + 2 Copper plate + 2 Graphite + 50 Vacuum + 2 Glass → 2 Vacuum tube
Compatible machines Electronics factory MK 01 · Electronics factory MK 02 · Electronics factory MK 03 · Electronics factory MK 04.
Research tier Automation science pack. Electronics - Stage 1
7 base seconds per batch. Fractional outputs are average yields.