Boss PH-1 Phaser s/n 054200 (april 1981)
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The Boss PH-1 was the original phase shifter made in Japan by Boss, with a simple two-knob control. It was succeeded by the PH-1R with added resonance control. 

Years of Production: 1977 - 1981

Product Specs

  • PH-1 Phaser (Black Label)
  • Green
  • 1977 - 1981
Made In
  • Japan

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