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Ampera

The vacuum tube design companion. From theory to circuit.

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339 tubes · 286 SPICE models · 54 guides
Catalog updated · 2026-05-19
Popular tubes
12AX7EL346L6GCKT88300B12AU7EL846V62A35U4GAll 339 →
Popular guides
LoadlinesBiasingPush-PullSET designOutput transformersSPICE simulationAll 54 →
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