John Frusciante’s Electro-Harmonix Electric Mistress Flanger

According to John, this pedal can be heard on the bridge section of the song Hard to Concentrate, from RHCP’s 2006 album Stadium Arcadium.

The EHX Electric Mistress Flanger was also allegedly used on the By the Way album – but further research is needed on this.

Please note that John most likely used an older version of the pedal, which now you can only buy from second-hand stores since EHX replaced it with a newer version.


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Alejandro Antunez
Alejandro Antunez
4 years ago

John used the 2000’s 24VDC DEM reissue, it was indeed used during BTW, the song ‘This is the place’ being the best example