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Vintage Vault: 1967 Rickenbacker 366/12 Convertible

Discover how this 1967 Rickenbacker 366/12 can morph from a 12-string to a 6-string with the flick of a handle.

Thanks to its mechanical ā€œconverter comb,ā€ this 1967 Rickenbacker 366/12 can be played as a 12-string or a 6-stringā€”or something in between.

The flattop 12-string guitar was a foundation of the folk music movement of the early ā€™60s, and this inspired Rickenbacker to design and manufacture an electric 12-string in 1963. Although other companies (notably Gibson and Danelectro) had made earlier attempts, the Rickenbacker 12-string electric became the most sought-after because of its association with George Harrison of the Beatles.

Musician and inventor James E. Gross was intrigued by the electric 12-string and decided to put his imagination to work on improving it. Born in 1931 in Lafayette, Indiana, Gross began playing music professionally at a very young age. He was distinguished as a performer and bandleader in the Chicago area for many years, and was known for playing unique double-neck banjos and combining comedy with exploding light shows and robots.

In 1966 Gross approached Rickenbackerā€™s owner F.C. Hall with his practical, easy-to-install converter device. This ā€œconverter combā€ could turn a 12-string into a 6-string (or any number in between). When the converter was engaged, it pulled strings down away from the playerā€™s right hand, leaving only the desired number of strings to be picked. Gross demonstrated the converter at the July 1966 NAMM show. A licensing agreement was signed in August, and the guitars went into production by winter.

The models produced were the 336/12, 366/12, and 456/12. The original Rickenbacker advertisement copy read: ā€œNow, one instrumentā€”the most versatile guitar ever madeā€”ends the need for carrying extra guitars. By means of an exclusive, patented converter on the brilliant Rickenbacker 12-string guitar, any combination of strings can be played.ā€

The 1967 366/12 pictured here was James Grossā€™ personal guitar. It has most of the features associated with classic Deluxe Rickenbacker models of the ā€™60s. These include a bound maple neck, a gloss-finished rosewood fretboard with large triangle-shaped inlays, two ā€œtoasterā€ single-coil pickups, a maple body with checkerboard binding on the back, a slash soundhole, and an ā€œRā€ tailpiece.

This example is finished in Rickenbackerā€™s most popular color, Fireglo. The main differences between it and a regular 360/12 are the chrome converter comb and the extra pickguard under it, which extends below all 12 strings. The 1966 list price was $579.50. The current value for one in excellent all-original condition is $4,500.

The 366/12 rests against a late-ā€™60s Rickenbacker Transonic TS100 amp. The Transonicā€™s current value is $1,000.

Sources for this article include Tony Baconā€™s Rickenbacker Electric 12-String and The History of Rickenbacker Guitars by Richard R. Smith.

A very special thanks to Cody Appel for acquiring the guitar and original paperwork from James Grossā€™ wife Peggy.

Rafiq Bhatiaā€™s guitar is a Flip Scipio Flippercaster with vintage Teisco and DeArmond pickups and has a strikingly original voice, even without effects or processing.

Photo by shamrockraver

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