Apparatus Tube Synthesizer Hands-On Demo


Eternal Engine shared this hand-on demo of the Apparatus Tube Synthesizer.

The Apparatus Tube Synthesizer is described as ‘The first duophonic synthesizer based on vacuum and gas-filled radio tubes.”

Features:

  • Kenoton rectifier power supply
  • Audio path based entirely on radio tubes
  • Two independent thyratron oscillators with quartz frequency stabilization, which ensures frequency accuracy throughout the entire operating range
  • Voltage-controlled second order filter with the possibility of self-oscillation and overdrive
  • Voltage-controlled amplifier, based on the traditional schematic of tube opto compressors
  • Triode asymmetric overdrive
  • Analog VU meter
  • CV / Gate inputs to control the oscillators pitch (OSC-1, OSC-2 CVs), filter cutoff frequency (VCF CV) and amplifier amplitude (VCA CV)
  • External Input for signal processing from external audio devices
  • velocity-sensitive ADSR envelope generator with two trigger modes
  • Clock synchronizable low-frequency oscillator with retrigger option and smooth waveform morphing: saw-triangle-reverse saw in triangle mode or pulse width modulation in square wave mode, sample & hold
  • Auto and continuous modes of portamento / legato
  • Monophonic and duophonic mode
  • Responds to Control Changes Pitch Bend, Mod Wheel, Velocity
  • Channel switching with the Learn button
  • Galvanic isolated PC connection port
  • Powerful headphone amplifier, compatible with low impedance load

Apparatus Audio Demos:

The Apparatus Tube Synthesizer is available for $1,999.

 


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