|The following is based on Fallout: Brotherhood of Steel and has not been confirmed by canon sources.|
“Two parts chainsaw, one part energy weapon, the Plasma Saw is a fusion-powered blade weapon that can be wielded like a sword, but does far more devastating damage. Few pieces of armor can stop this thing.”
A fusion-powered blade uses a power supply inside and thus doesn't require small energy cells.
- Secret Vault Laboratories Level 1, found on table.
- Secret Vault Laboratories Level 2, found on shelf.