Vacuum Tube Curve Tracer

⚡ Vacuum Tube Curve Tracer

Looking for the Circuit CAD… ?

In the circuit

Tube library

Socket

Load line Bias curve Pa max 70% Pa

Tube model & curve fitter

LTspice subcircuit of the displayed tube (Koren equations, same as the simulator). To model your own tube, upload measured points as CSV rows Va, Vg, Ia_mA[, Vg2]; the fitted curves are drawn dashed on the chart.