[Mr. Carlson] bought a Globe Scout Model 40A ham radio transmitter at a hamfest. The 40A was a grand old transmitter full of tubes, high voltage, and a giant transformer. It is really interesting to ...

Most often ultrasonic transducers are used for distance measurements, and in the DIY world, usually as a way for robots to detect obstacles. But for a weekend project, [Vinod.S] took the ultrasonic ...

The boot Dive Award has now entered its critical public voting phase. This phase allows the global diving community to weigh ...

Carrier synchronization, Mark Persons writes, can be applied to alleviate co-channel interference between two AM radio ...

When it comes to streaming music or taking calls on the road, Bluetooth FM transmitters make it easy to modernize older vehicles without upgrading the entire stereo system. After all, many of our ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The 47-year-old ...

There was a time when we only had one type of earphone, and it was wired. Now, thanks to the expansion of Bluetooth technology, the days of untangling cords are over. It’s mostly been a pleasant ...

SOUTHWICK, Mass.—Hitachi Kokusai Electric Comark has announced that the WGBH has upgraded it VHF Band 1 Parallax liquid cooled DTV transmitter for up to 47.8kW of power. Comark supplied the Parallax ...

View post: Hyundai Unveils Exciting December Lease Deal for the 2025 Ioniq 5 N Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change.

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Adrienne Maxwell Adrienne ...

The transmitter in Daventry, pictured here in use in 1951, was chosen because of its location in central England The BBC's 100th anniversary has been marked in the town that enabled it to make ...