The heart of EE: click a target item into the top-left slot (you keep it).
Everything else in the 
Energy Condenser burns to EMC and becomes the target — exactly by value.
MK1: 20 items/s. 
Energy Condenser MK2: whole stacks, separate output.
Crafting Table3 × 3
1 × Energy Condenser
Crafting Table3 × 3
1 × Energy Condenser MK2
Crafting Table3 × 3
1 × Alchemical ChestRequired materials
Stone2 ×Diamond1 ×Iron Ingot2 ×Chest1 ×Hoppers/pipes: anything goes in, only finished target items come out.
Breaking it drops the contents, stored EMC is lost.