The Twelfth Fret ~ Since 1977 ~

Groove Tubes

Groove Tubes  was founded in San Fernando during 1979 by Aspen Pittman,  author of  The Tube Amp Book, one of the basic reference sources on vintage tube amplifier circuitry.       Groove Tubes produced, tested and matched vacuum tubes for amplifiers, but also designed and built amplifiers and microphones.

Purchased by Fender in 2008,  Groove Tubes now offers high quality calibrated tested, and matched tubes.

Groove Tubes at The Twelfth Fret

The Twelfth Fret

Guitarists’ Pro Shop
2132 Danforth Avenue
Toronto, Ontario  M4C 1J9
○ Sales: +416•423•2132
○ Service: +416•423•1554