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JAM Pedals RetroVibe MKIII

RetroVibe MKIII


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  • Majestic vintage Uni Vibe tones
  • Vibrato and Chorus capabilities
  • Leslie speaker type effects
  • Original NOS 2SC828 transistors
  • Carbon comp resistors
  • Internal trimmer for effect intensity
  • Hand built, wired and painted
  • Depth, Speed, Chorus, Vibrato, Internal Trimmer
  • Hand painted artwork
  • LED power indicator on and off
  • True bypass
  • Side mounted jack sockets
  • Limited lifetime warranty


Comprised of photocells, a bulb, original NOS 2SC828 transistors and carbon comp resistors, the JAM Pedals RetroVibe MKIII delivers the majestic sounds of the best Uni Vibe effects pedals from back in the day, but housed in a modern pedalboard friendly enclosure and featuring standard 9V DC operation internally lifted to 15V DC.

Choose between the Vibrato and Chorus settings and navigate from slow rate wavy sounds all the way to fast Leslie speaker effects.

Use it with any common passive 10k Expression pedal in conjunction with a standard TRS cable for real time Speed control.

JAM Pedals have incorporated an internal trimmer that affects the maximum intensity of the effect, but also dramatically manipulates the sound of the JAM Pedals RetroVibe MKIII, all the while maintaining the RetroVibe’s true vintage character.

Roses are red violets are blue the RetroVibe’s purple and you’ll looove it too.

Artist Quotes

“I have been using a univibe Clone since the early 90’s live.  The JAM Pedals RetroVibe is right on track with the perfect sound we’ve all heard and love.  It’s way more faithful and musical than other vibe pedals out there.”  J Mascis 

“I literally was looking everywhere for the right kind of vibe.  As you know I’m a tone freak and we’re always searching for the best...I just knew immediately that that’s the sound that I was looking for...whenever I need that tone, the JAM Pedals RetroVibe is by far my favourite one!”  Andy Timmons

“I love the RetroVibe! It is a magic piece of equipment! It is almost on every single guitar track on the new record. I hardly turn it off these days!”  Ruban Nielson

“The JAM Pedals Retrovibe is my Vibe of choice. It has all the “Vibe” of the original, particularly that illusive, complex midrange that responds so beautifully to pick attack.  It behaves perfectly with Fuzz Face type pedals and is more transparent than any of the old Univibes I have heard.  That it is so compact is quite a bonus and mine has Laurel and Hardy on it (I got lucky – the rest of you get flowers, Ha!)”  Julien Kasper

RetroVibe Artists

Nels Cline, David Hidalgo, Andy Timmons, J Mascis, Ruban Nielson, Simon McBride, Cesar Rosas, Dweezil Zappa, Greg Koch, Ler LaLonde, Julien Kasper, Adam Levy, Josh Smith


  • Depth: Sets the effect amount in the dry signal
  • Speed: Sets the rate of the modulation
  • Toggle switch: Selects Chorus (C) and Vibrato (V) modes
  • Internal trimmer: Sets the maximum intensity of the effect

Component Listing and Tech Spec

  • High quality components throughout
  • Original NOS 2SC828 transistors
  • Carbon comp resistors
  • Internal trimmer for effect intensity
  • 9V centre negative power
  • 150mA current consumption

Expression Pedal Inputs

  • Expression pedal input for remote Speed control

Enclosure Dimensions

  • Length: 118 mm / 4.6 in
  • Width: 92 mm / 3.6 in
  • Height: 34 mm / 1.3 in


  • 355 g

FX Pedal Planet Limited and FX Pedal Planet Online Store are proud to be UK dealers for JAM Pedals effects pedals.  If we do not have the JAM Pedals effects pedal required, please message us via the contacts page and we will do our best to get the product that you want at the very best price and service.

What planet are you on - FX Pedal Planet

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