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Vfd Amp
From the MAKE: Flickr pool

5Volt turned an old VCR’s vacuum fluorescent display into a headphone amp -

VFDs are common on VCRs. I have a few of them I took from some broken VCRs. Last night I was working on how I could use them as vacuum triodes. I don’t have much experience with real vacuum tubes so I had to invent some, possibly wrong, arrangements, but I finally got something.

Schematic and further details available – A Vacuum Fluorescent Display as a headphone amplifier

Collin Cunningham

Born, drew a lot, made video, made music on 4-track, then computer, more songwriting, met future wife, went to art school for video major, made websites, toured in a band, worked as web media tech, discovered electronics, taught myself electronics, blogged about DIY electronics, made web videos about electronics and made music for them … and I still do!


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