The F-sharp power chord (abbreviated "F#5 chord") is a two-note chord consisting of the notes F♯ and C♯. The chord is formed by removing the major third from a F-sharp major chord.
F-sharp power chord
F-sharp fifth chord
F♯omit3 F♯(omit3) F♯no3 F♯(no3)
dyad (two-note chord)