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for audio, Korg has a gallery of examples: https://korgnutube.com/en/gallery/ https://korgnutube.com/en/gallery/ the tech uses the same manufacturing line as a
by tubetime 8y ago
for audio, Korg has a gallery of examples: https://korgnutube.com/en/gallery/ https://korgnutube.com/en/gallery/
the tech uses the same manufacturing line as a traditional vacuum fluorescent display. VFDs are technically vacuum triodes where the plate has been painted with a phosphor.
the device is probably not fast enough to be used as a video amplifier.