Making good progress on a vacuum tube bass synthesizer. Got the four neon diode oscillators done and tuned up together. Plus it glows in the dark. : } #synthesizers #analog #music #neon https://cdn.fosstodon.org/media_attachments/files/113/524/070/353/940/861/original/57204567107e3066.png https://cdn.fosstodon.org/media_attachments/files/113/524/070/785/985/525/original/b2983d542ba9da2a.png