Trogotronic m679 Gran Fury


Not in our product range anymore.

The Trogotronic m679 GranFury is a compact tube synthesizer voice for the Eurorack system and is the direct descendent of the m676.



  • All Analog Circuit
  • 3 Main oscillators
  • 2 Amplifiers
  • 2 Unique Filter/FX parameters (Drive and Modulation)
  • Input for use with other audio elements
  • 6 Modular compatible CV inputs for patchable parameter control
  • 1 Medium Frequency Control Oscillator: Track
  • 3 Stabilizer Switches (on for stability, off for mayhem)
  • Slovakian Max. Gain, Twin-Triode Vacuum Tube run at high voltage

As the tubes operate at high voltages and comsume lots of power, you can't supply them by your modular system´s power distribution but an external power supply. The module has two sockets for an external power supply, each one on the back and on the front. You can decide which of both you prefer to use.


Only two units in stock (as of 20th Feb 2015), then no more. Sales only as long as stock lasts.


Audio: input and output

  • CV-Eingänge for oscillator frequencies 1, 2 and 3; Track, Drive and Mod
  • input for external 12V AC wall wart

  • dimensions

    3U Eurorack module, 14HP wide, 85mm wide
    Powered only via an external 12V AC power supply

    0,4 kg
    Article Number

    This item is discontinued or sold out and no longer available, please feel free to look for comparable new stuff in the following categories.