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Virtual Oscilloscope
SE Amp CAD not only displays the results numerically, it also displays the resulting wave forms. Its virtual oscilloscope quickly shows if the output stage is functioning close to its design objectives. The deviation from linearity (i.e. distortion) that the output stage undergoes with increasing input signal is displayed on the fly: as the active circuit variables are altered, the scope trace reflects the change in wave form.
Cursor Data Display
Where the cursor rests on the trace is translated into the instantaneous plate voltage and phase angle values that are displayed in the hint line portion of the bottom of the program.
AC and DC Viewpoints
An AC viewpoint ignores the negative bias voltage and the positive plate voltage and shows only the AC component of the output and input signal reference to the 0 voltage line. A DC viewpoint includes the negative bias voltage and the positive plate voltage with the DC component of the output and input signal reference to the 0 voltage line.
Wave Forms
The type of input signal to the grid of the output tube can be selected in the virtual oscilloscope. SE Amp CAD displays the usual three oscilloscope wave forms: sine, square, and triangle. Each has its advantage when evaluating an amplifier's output. Sine waves are useful in showing the amplifier's ability to handle music-like signals. The square wave is useful for quickly displaying the gain and asymmetrical voltage swing of the amplifier. The triangle wave is useful for revealing the nonlinear transfer function ( i.e. the distorted output) of the amplifier.
Bitmap Copy Creation
SE Amp CAD features easy screen captures of the oscilloscope traces by creating bitmap files (*.BMP), which can be stored on your hard drive and used in other programs and easily printed.
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