Elemental Converter (Yost Universe)

Elemental converters are a series of devices that uses to convert a planet into energy for him to feed on.

History
Galactus has four machines that are built by his four, , , and. The heralds travel to a planet, set up the devices, and activate them for feeding.

However, when they came to, the various heroes of that planet defeated the heralds and destroyed the machines. Galactus reformed the machines but they were all pulled into the.

Background
The machines were not named.