Spintronic Capacitor (1.2 mF)

The built-in voltmeter gauge is incredibly handy—I can read spin voltage at a glance without extra wiring. Charged up smoothly and holds steady in my spintronics rig.

I swapped this into my bench rig to smooth out voltage ripple and it holds a steady charge way longer than the old cap I was using. The built-in gauge is the real bonus, letting me eyeball the spin voltage anywhere from -9 to +9 without dragging out the multimeter.

Didn't expect the gauge on top to be this handy — I can watch the spin voltage swing from -9 to +9 while it's holding a charge. The 1.2 mF capacity covers my small rigs fine.