Vacuum tube

A vacuum tube is a device that controls electric current using vacuum. In Pikmin 2 and Hey! Pikmin, the following treasures are vacuum tubes:

• Pikmin 2:
  •  Indomitable CPU: found in Subterranean Complex sublevel 7.
  •  Network Mainbrain: found in sublevel 2.
  •  Vacuum Processor: found in sublevel 6.
• Hey! Pikmin:
  •  Life-Form Prototype: found in Pollution Pool.

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