The FBT Phaser PF III is a phaser pedal made by Jen in Pescara, Italy, in the mid 1970s. Like all phasers, it works on frequency: the circuit clones the guitar signal one or more times, passes the clones through all-pass filters called stages that alter the length of each phase, and re-feeds the signals back together, producing the sweeping, swirly character players associate with a phaser pedal.12
One circuit, several brand names
The pedal was available during the mid and late 1970s under different brand names. TONEHOME lists the versions as the JEN PR III, the JHS PZ III Phaser, the Ricken's PR III Phaser, the Zenta PZ III Phaser and the FBT Phaser PF III.1
Build and sound
TONEHOME describes a contrast between the pedal's construction and its output. The circuit board is loosely soldered and, in the unit they examined, was only prevented from flying around and short circuiting by a piece of foam. That sits against a heavy duty pressed steel enclosure.1
As for what it does to a signal, TONEHOME's verdict is that "it delivers a lively and swirly phasing effect to die for (though a bit noisy)."1
"it delivers a lively and swirly phasing effect to die for (though a bit noisy)"
Videos
experience
Sources (2)
- TONEHOME, TONEHOME
- The Great Modulator: A Guide to EarthQuaker Devices Modulation Pedals, EarthQuaker Devices, 2022-05-16

