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GuitarSystems VibeTool

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Page last updated Aug 10, 2025

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Description

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The GuitarSystems pedals are old school guitar effects, with some added functions that add flexibility and stability, without losing their specific old school character. They are based on legendary vintage effects, and are made with the same New Old Stock parts as the originals.

About the GuitarSystems VibeTool:

The VibeTool is based on the original Shin Ei Uni-Vibe circuit. It uses NOS parts and gives you the fantastic Uni-Vibe sound, while adding some extra features that make it more compact and more versatile for use with today's wider range of different guitars.

About the original Shin Ei Uni-Vibe

The Uni-Vibe was developed by the company Shin Ei in 1968 by engineer Fumio Mieda. It was meant to be a Leslie simulator but it sounds more like a phaser as it is essentially a 4 stage phase shifter. The major difference with a standard phaser (e.g. MXR Phase 90) is that the four phase shifting stages each have a different frequency setting making the "wobble" sound more musical. The Uni-Vibe had a classic sound of its own, that can be heard, for example, on Robin Trower's "Bridge of Sighs", Jimi Hendrix's "Machine Gun" and on various songs of Pink Floyd's "Dark Side of the Moon".

Features of the GuitarSystems VibeTool

Based on original Shin Ei Univibe circuit - original Uni-Vibe sound Quality matched components - optimal & consistent sound T.M.F. control - Adjusting the amount of low end and thereby making a Les Paul guitar sound right with a Vibe (which was really hard with the original unit) The Paul Switch Jr. - robust true bypass footswitch to switch the effect on/off, adjusted for unity gain,avoiding tone sucking. Dual color led (red/blue) indicating effect on & Vibe speed in both on/off mode 18 Volt power supply input - increased headroom compared to the original. Extended speed range - maximum speed of original is 4.5 Hz, VibeTool is 9 Hz Easy Foot adjustment of the Vibe speed - No need for an expression pedal

Product specs

Bypass	true bypass
Power	18V

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Sam Vilo

Guitarsystems VibeTool

Sam Vilo

Guitarsystems VibeTool

pedalsracks

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Steve Stevens

Guitarist

Michael Jackson (band)

Verified via YouTube

At 18:50 of this "Rig Rundown" with Premier Guitar, Steve points to his Vibe Tool saying "this is like a Uni-vibe- this is my vibe tool. Really cool sounding like Uni-vibe type pedal, sounds great with Humbukers."

Michael Thompson

Guitarist

Michael Jackson (band)

Verified via YouTube

Featured in this February 12, 2010 video and quoted on the official product page.

Michael Thompson: “It’s has the right frequency. I love this sound!”

Tony Spinner

Guitarist, Singer

Verified via Guitarsystems

Quoted on the official product page,

Tony Spinner: „I love the Vibe!!! I cannot tell any difference between it and my real vintage one. Well, one difference.. Yours is quiet compared to mine"