Bigsby B7 Vibrato for Thin Acoustic & Electric Guitars (Aluminium / Gold Plated)

• Model Name: B-7
• Series: Original Kalamazoo Line
• Manufacturing Method: Cast
• Manufacturing Material: Aluminum
• Approximate weight: 354 grams/12.5 oz.
• Overall Length: 8 3/4”/222.3 mm
• Overall Width: 3 5/8”/92.1 mm
• Arm adjusts with 1/8” Allen wrench and 5/16” socket 

The Bigsby was the first successful design of what is now called a whammy bar or tremolo arm, although vibrato is the technically correct term for the musical effect it produces. In standard usage, tremolo is a rapid fluctuation of the volume of a note, while vibrato is a fluctuation in pitch. The origin of this nonstandard usage of the term by electric guitarists is attributed to Leo Fender, who also used the term “vibrato” to refer to what is really a tremolo effect.