 The Transicord DeLuxe includes organ percussion effects.Opening and closing the bellows engage an effect similar to the "tone boost" knee lever on Combo Compact model organs.In 1960-1962, Farfisa developed the first-generation Cordovox vacuum tube accordion, the CG-2 and CG-3, which used tubes in a suitcase-sized tone module for the tone generation (the accordion was connected to the tone module with a thick cable).