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Korg's Volca Nubass is a vacuum tube analog synthesizer
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, one of which was made by another company. Now Korg is putting the tiny Nutubes to work in its line of compact analog synthesizers with the $200 Volca Nubass.