Learn how microphones and amplifiers work together to convert sound to electrical signals for clear audio output.

It will also operate small transistor radios, and Elgin researchers believe that it will eventually be used in hearing aids. When worn in close contact with the human body, the battery must be ...

Sony launched the world's first non-projection, fully transistorized television, the TV8-301, in May 1960, about six years ...

[2000MAH POWER BANK WILL KEEP DEVICES POWERED] FosPower's emergency radio incorporates a 2000mAh power bank capable of providing emergency power to any small tablet or phone. [3 POWER SOURCES ...

US Marine Corps (USMC) programme officials are soliciting industry options on development of a new modular, ...

SIMPLE, EASY-TO-USE FM/AM RADIO WITH HIGH QUALITY SOUND: Portable handheld radio with digital tuner has a simple, easy-to-use interface, with antennas that pick up both AM and FM signals EASY-TO ...

In his new book, Source Code, Gates recalls a unique childhood that led him to build a technology empire. We talk BASIC, old ...

Here in the future, though, there are many more satellites in orbit and a few are specifically meant for ham radio operators. And, like the ’50s, it doesn’t take too much specialized equipment ...

Spotted in the latest Windows 11 preview build, Microsoft is adding an option to show your PCs battery percentage next to the battery icon in the System Tray on the Taskbar. Pretty much all ...

For the time being, I'll continue to store my go-to transistor radio, the Sony ICF-P26, within my personal emergency kit.

Nokia Bell Labs celebrates its 100th anniversary in 2025, marking a century of groundbreaking innovations such as the transistor, solar cell, and ...