The F# 7 Guitar Chord is found by locating the 1, 3, 5 and b7 positions (F#, A#, C# and E) of the F# Major Scale: F#, G#, A#, B, C#, D#, and E#. The b7 symbol means that we take the 7th position of the F# Major Scale and flatten it by 1/2 step to arrive at our “E” note.
So the notes of the F#7 chord are: F#, A#, C# and E
Here is a key that will help you read the chart:
Chord Playing Tips
Be sure that you are pressing down on the strings hard enough and play each string one at a time to make sure you have a nice clean sound. If any of the strings buzz or sound muted, then something is not right. Do not become frustrated with this or any other barre chord! It takes a long time for many beginners to finally learn barre chords. Just keep practicing and eventually you will build up enough strength to where barre chords become second nature.
F#7 Guitar Chord Video Tutorial