Schematic Sketch
Draw or paste an analog schematic. Get a textbook SVG and its SPICE netlist.
Draw with a mouse, a pen or a finger; hold the pen still at the end of a stroke to straighten it into a line, corners or a circle (keep moving to adjust it), or hold Shift for a straight line. A straightened line joins the lines it ends on. Keys: P pen, T text (an underscore starts a subscript, a caret a superscript: V_DD, V_{out}, x^2), E eraser, H hand, Space and drag to pan, plus and minus to zoom, 0 to fit the drawing, Ctrl+Z to undo, Ctrl+Shift+Z to redo, Ctrl+Enter to convert. You can also drop or paste an image onto the board.
Draw your schematic here
or drop / paste an image
or upload an image
The textbook schematic appears here
Draw and press Convert, or type a netlist
The figure redraws when you stop typing; Ctrl+Enter redraws now.