Maestro (effects) Phaser zum Verkauf in der Schweiz

At least 3 eBay results for Maestro octave and pitch effects
Vintage Early 70's Maestro MINI-PHASE MPS-2 Pedal  for sale

Vintage Early 70's Maestro MINI-PHASE MPS-2 Pedal

Maestro PS-1A Vintage Phase Shifter for sale

Maestro PS-1A Vintage Phase Shifter