Toroidal inductors
5 Melamine resin + 5 Air-core inductors + 10 Ferrite + 20 Tinned cable → 5 Toroidal inductors
Compatible machines Electronics factory MK 01 · Electronics factory MK 02 · Electronics factory MK 03 · Electronics factory MK 04.
Research tier pY science pack 2. Electronics - Stage 2
5 base seconds per batch. Fractional outputs are average yields.