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Tube Gainclone for DIY Buffs
The original "Tube Gainclone for DIY Buffs" website by Joe Rasmussen. Inverted GC with Tube Buffer and interesting features, such as LPF to shape bandwidth and tweak sound character (better soundstaging), zero feedback above 200KHz. Extensive spectral harmonic measurements at various power levels, IMD graph, effects caused by small 1000uF caps and more... Circuit diagrams of main circuit and supplies.