It uses a vaccuum fluorescent display, which is actually a little tube (a triode I think?)
Seems to clip on the top of the waveform and fold on the bottom.
Similar to Korg’s NuTube:
Hopefully we can do supersampling in Audulus at some point and have more model-accurate overdrives. It’s tough to do it accurately at 44.1k.
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And it also looks like it inverts the signal. I made a quick model, let me know how you think it sounds.
Ivan Drive Emulation .audulus (18.0 KB)
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Very cool! Definitely beefs up that sine wave. Might make a kick based on this…
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