Fifty components. That felt like a generous cage. For most of her circuits—op-amps, BJT amplifiers, basic filters—it was plenty. But last semester, Jake tried to simulate a 16-bit DAC with output smoothing. The student version refused to run. Not because of bugs, but because the node count exceeded some invisible digital fence. Jake had to spend three hours in the lab at 11 p.m., using the university’s full license.

Still, for a sophomore sleeping on a futon, living on ramen and coffee, the student license was a lifeline. It turned her laptop into a virtual bench. She could tweak component values at 2 a.m. in her dorm. She could see how a transistor’s beta shift affected gain before ever touching a breadboard.

But for Sarah, tonight, it was just the tool she needed. No guilt. No limitations that mattered. Just a clean schematic and a waveform that told her she was right.