Live Curves
The Live Curves program stands independent from the tube manual and it display LIVE plate curves. A tube's set of plate curves is the equivalent to finger prints. With these curves, we can determine the best operating point and maximum voltage excursions. The tube plate curves displayed in Live Curves are entirely mathematically derived, which means that you can specify the both the current and voltage limits of the graph along with the number of grid lines and the grid voltage step increments. Push button switches toggle the display of the plate resistor load line. And Live Curves knows what both the plate voltage and current along with the grid voltage is at any point on the graph.   (Download a free sample of Live Curves technology)

V & I & W Limits and Plate Resistor and Cathode Resistor Load Lines
Live Curves can superimpose the voltage and current and wattage limits of a tube over the plate or grid curves. These lines set the safe use bounds for a tube's operation.

The plate resistor and cathode resistor load lines intersection reveals the bias point with these valued resistors and B= voltage.

Live Tube Data Readouts
Live Curves reads the mouse's cursor movement across the plate curves and displays the tube's grid voltage, plate voltage, plate current, rp, mu, Gm, and plate dissipation at the cursor position on the graph. As the cursor is moved, the tube data are updated and displayed.

Bitmap Copy Creation
Live Curves features easy screen captures of the tube plate curves by creating bitmap files (*.BMP), which can be stored on your hard drive and used in other programs and are thus easily printed.