# Vacuum tube

Pyanodons item · internal name `vacuum-tube` · stack size 100 · first craftable in tier 0 (Automation science pack, [tier 0](https://factorio.kalzumeus.com/tier/0.md))
HTML page: https://factorio.kalzumeus.com/item/vacuum-tube/

## Produced by (1 recipes)

### Vacuum tube (`vacuum-tube`)

- 7 s · tier 0 · productivity modules allowed
- Ingredients: 5 × [Iron plate](https://factorio.kalzumeus.com/item/iron-plate.md), 2 × [Copper plate](https://factorio.kalzumeus.com/item/copper-plate.md), 2 × [Graphite](https://factorio.kalzumeus.com/item/graphite.md), 50 × [Vacuum](https://factorio.kalzumeus.com/fluid/vacuum.md), 2 × [Glass](https://factorio.kalzumeus.com/item/glass.md)
- Results: 2 × [Vacuum tube](https://factorio.kalzumeus.com/item/vacuum-tube.md)
- Made in: Electronics factory MK 01, Electronics factory MK 02, Electronics factory MK 03, Electronics factory MK 04
- Unlocked by: [Electronics - Stage 1](https://factorio.kalzumeus.com/tech/electronics.md)

## Used in (3 recipes)

- Simple circuit board (`electronic-circuit`, tier 0) → [Simple circuit board](https://factorio.kalzumeus.com/item/electronic-circuit.md)
- Electronics MK01 (`electronics-mk01`, tier 1) → [Electronics MK01](https://factorio.kalzumeus.com/item/electronics-mk01.md)
- Simple circuit board (`electronic-circuit-2`, tier 1) → [Simple circuit board](https://factorio.kalzumeus.com/item/electronic-circuit.md)