RhPf Electronics is a small two-person operation based in Basel, Switzerland, building handmade guitar effects pedals. Run by Simone and Thomas, the project grew out of a hobbyist endeavor into a boutique brand focused on original circuit designs, careful measurement of pedal behavior, and small-batch assembly. The name plays on "Rheinpferd" (Rhine horse), a nod to their home along the Rhine.

The lineup spans overdrives, distortions, fuzzes, boosts, tremolos, and delays, with MOSFET-based dirt circuits as a recurring theme. Notable models include the Mosferatwo touch-sensitive MOSFET overdrive, the Mo(s)ghoul reactive MOSFET distortion aimed at alt-rock, shoegaze, stoner, and doom players, the Moschops MOSFET tremolo, and the Twin Peaks Eiger-Mönch delay. Other pedals in the catalog include Mostard, Shodhana, Mosphoros, Mosrawr, Basilisk, Tri-Harmonic Phalanx, and Capharnaüm.

Beyond the circuits, RhPf emphasizes a sustainability-minded approach — RoHS-compliant builds, low power draw, and plastic-free packaging — and publishes technical resources such as "Tone Maps," visual frequency-response charts that document the tonal fingerprint of each pedal.

RhPf Electronics has 11 products cataloged on Equipboard, including Overdrive Effects Pedals, Boost Effects Pedals, and Distortion Effects Pedals.