The R 3 /C 1 combination applies high voltage to Q 1, a 40V-breakdown device. Set the high-voltage “bias-adjust” control at the point where free-running pulses across R 4 just disappear. This setting ...

Justin Jaffe is the Managing Editor for CNET Money. He has more than 20 years of experience publishing books, articles and research on finance and technology for Wired, IDC and others. He is the ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...

Test your broadband connection speed. Our speedtest works on the vast majority of web browsers and devices, including computers, tablets, phones and games consoles. If you are experiencing ...

If you have trouble breathing, your doctor may recommend a few tests to figure out what’s causing it. Some measure how much air you breathe in or out or how much oxygen is going from your lungs to the ...

Carley Millhone is a writer and editor based in the Midwest who covers health, women's wellness, and travel. Her work has appeared in publications like SELF, Greatist, and PureWow. Jay N. Yepuri, MD, ...

OpenAI Realtime API GA was officially released on 2025-08-28, and it is not fully compatible with the Beta version.To address these breaking changes, we need to develop a v2 version of ...