eSketch is a new and very powerful schematic capture and simulation program specifically designed for the ultra fast rendition and simulation of frequency-shaping analog circuits such as preamplifiers, amplifiers, active filters, passive filters, crossovers, equalizers and tone controls.

It has been priced so low as to be an essential part of the analog designer's toolkit, even when more complex simulators are also available.

The programs simplicity of use and speed of execution provide an "electronic sketching" environment in which the effects of changes in layout, component values, component tolerances and op amp Gain Bandwidth can quickly be determined.

Students and teachers find it to be a superb learning tool; all RLC circuits, and real and ideal op amp behaviours can be readily observed.

eSketch is available in a PRO version ($69US) and an LE version ($29US). The PRO version cost is discounted when purchased with Filter Wiz PRO or LE, or with OpFil. The eSketch file download includes 18 example circuits to demonstrate the program's considerable capabilities.

All version 1.X upgrades are available free of charge.