A true legend, born in the 60s – in my humble opinion, one of the most interesting guitar effects ever constructed. This legendary phase shifter was originally created to emulate the Lesslie rotary speaker, but the final result was this totally rad modulation, which is a tremolo, a vibrato and a chorus – all of them. It sounds truly unique and there is nothing like it. The distinctiveness of this pedal can be seen from the construction alone – it’s main module consist of four phase shifters, which are controlled with photoresistors coupled with a lightbulb. The non-linear light coming from the bulb makes shifting very natural and vibrant. A skillful use of this pedal is great for creating dark and psychedelic sounds. It was used by Jimi Hendrix and David Gilmour – the effect can be heard on Pink Floyd’s The Dark Side of the Moon on tracks like „Us And Them” or „Breathe”. One of the guitar players most associated with the Univibe* sound is Robin Trower who made it his signature tone.
After many months of trial and error, I’ve managed to create a 100% replica of a vintage Univibe* unit. I’m especially proud of the way SPEED and DEPTH pots are configured – they are very responsive and the deep phasing structure appears even when you set the SPEED at the 9 o’clock position (in other pedals of this type it usually starts at about the 11 o’clock position). Every unit is built with hand-selected photoresistors and its electronics are carefully calibrated. No fan of the Univibe* will be disappointed. The way that DEPTH and SPEED knobs respond and create different setups makes the effect cover a huge variety of tones. You can use the footswitch of this pedal to choose between two modes – chorus and vibrato. A two-color LED diode signals which mode is currently in use. The unit is decorated with an interesting design which hints at the psychedelic feel it is able to create.
I have added a personal customization with an input buffer which prevents the cutting of the highs. The original version of the pedal had relatively low input impendence, which made the sound darker and duller. An equivalent of the modern/vintage switch, frequently used in replicas, which turns the buffer on and of is located inside the unit (as a DIP switch).
- Requires stabilized 18V power supply (2.1/5.5 plug with “plus on the outside”)
- Precise voltage is necessary for this pedal to work correctly. Each unit is calibrated to the reference 18V.
- The pedal uses a bulb which should last for more than ten years of regular usage. A backup bulb with replacement instruction is provided as part of the set.
?The level of guitarist’s experience on a five-point scale. The higher the level, the more skill the pedal requires.