[Kevin Darrah] wanted to make a simple 3.3V regulator without using an integrated circuit. He wound up using two common NPN transistors and 4 1K resistors. The circuit isn’t going to beat out a ...

[Paulo] just tipped us about an Excel based high frequency transistor amplifier calculator he made. We’re guessing that some of our readers already are familiar with these class A amplifiers ...

Transistor circuits deliver all of these functionalities in electronic computing, but for large scalable logic circuits, no optical element or circuit, either active or passive, can do this and at ...

As with many inventions, two people had the idea for an integrated circuit at almost the same time. Transistors had become commonplace in everything from radios to phones to computers, and now ...

Save guides, add subjects and pick up where you left off with your BBC account. The transistor is on, when the input voltage is greater than or equal to \(0.7 V\). The transistor is off if the ...