Tod Rex Salvador (born June 29, 1965), known professionally as Tripp Eisen, is an American musician best known as the former guitarist of industrial metal band Static-X.

Eisen brought in friend Preston Nash to play drums, and the band worked the New York City club circuit.

After the release of the album Felons and Revolutionaries (1999), the band toured extensively throughout the U.S. and Canada with acts such as Sevendust, Kid Rock, Static-X, Slipknot, Disturbed, Chevelle, Fear Factory, Staind, and Alice Cooper.

[1] Eisen appeared in the Dope videos for "Sick" and "Everything Sucks", and gained much notoriety from his wild antics and stage persona.

[3] Eisen left the group in 2002 to be replaced by Dope bandmate Acey Slade, citing conflicts between touring plans and his work recording with Static-X.

[5] He contributed to the recording of the bands sophomore album Machine, as well the subsequent releases Shadow Zone and Start a War.

[8] The group features Ken "Mantis" Hoyt (Crushpile) on vocals, TJ Cooke (Methodical) on drums, Dante on rhythm guitar, and Nick Sledge on bass.

[9] While a member of Static-X, Eisen was arrested on February 10, 2005, on a felony charge of statutory sexual contact with a minor in Orange County, California.

In an interview with Totally Driven Radio, he spoke about his arrest and subsequent release from prison: There were two cases [involving two separate girls].

It featured in Gun metal gray, with two BDSM closed humbuckers, his signature on the back of the headstock and the Static-X symbol inlaid 12th fret.