This is an overview article which contains background information and cross-game comparisons. For game-specific information and stats, see the articles linked on the right.
pulse pistol is an energy weapon in , Fallout 2 Fallout:New Vegas and Fallout Tactics .
YK32 pulse pistol
The YK32 Pulse Pistol is an electrical pulse weapon that was developed by the
Yuma Flats Energy Consortium. Though powerful, the YK32 was never considered a practical weapon due to its inefficient energy usage and bulky design.
"CIRCUITBREAKER" Pulse gun
Codenamed the "CIRCUITBREAKER"
, the Pulse Gun is a prototype weapon developed for the  United States Armed Forces by an unknown manufacturer. It was transported by Staff Sergeant Daniels to Vault 34 by orders of Colonel Roy Blackwell, for safe keeping until the manufacturer could retrieve the prototype for production.
↑ In-game description of the YK32 pulse pistol in
Fallout 2.   ↑ 2.0 2.1 Inventory transfer order.