Korg debuted its Nutube tech a couple years back, but so far the tiny vacuum tubes have only surfaced in select products. Nutubes have been used in a distortion pedal and a mini guitar amplifier head, ...

Korg has created a new vacuum tube synthesiser in the form of the Korg Volca Nubass offering a powerful bass synthesiser with the sound source based around a vacuum tube oscillator. “The acid bass ...