The Furthrrrr Generator by Spanish manufacturer Endorphin.es is a complex completely analog oscillator inspired by the buchla 259. the furthrrrr generator has a main oscillator (carrier) with an extensive and fully voltage controllable wave mulitplier and a modulation oscillator (modulator) that can crossmodulate the carrier. each oscillator has hard and soft sync and also featrues an integrated tuner: if both leds are lit the vco is at note a. left led is lit at note ab and right led at a#. frequency potentiometers are ten-turn models and thus allow for eeazy tuning. frequency range of the vcos is 10hz-10khz (and much lower in modulator's lfo mode).