Neon glow from vintage gas discharge diodes.
https://cdn.fosstodon.org/media_attachments/files/113/524/070/785/985/525/original/b2983d542ba9da2a.png
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
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