| Schmitt triggers are standard circuits in electronics, so you might think there’s nothing special about them. All you need is an opamp and a...
| Schmitt triggers are standard circuits in electronics, so you might think there’s nothing special about them. All you need is an opamp and a...
| If you replace a broken three-wire fan in a PC or other device with a more readily-available two-wire fan, the missing tachometer (‘tacho’),...