Gene Cafe Dimmer Control Mod - Stage 2

Temperature control plus the ability to roast in low voltages (without needing a Variac)

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This is a simple addition to stage 1 and will allow us to roast in low voltage situations without the use of a Variac and extend the useful voltage range of the Gene from around 227 Volts to 250 volts or higher.1
  • Target Cost = £20
  • Difficulty = easy
  • Time to complete = less than 20 minutes
  • Fully Reversible = yes


  • This would have all the benefits of stage 1
  • Will allow for roasting in low voltage conditions
  • Better roasting in low temperature conditions
  • The ramp up temperature of the gene can be fully controlled, and any desired roast profile achieved.

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