[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 ...

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 ...

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 ...

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: Amazon Has a 32-Piece Punch Set on Sale for Just $27 Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. Most modern ...

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 ...

Bothell, Wash.-based Tethers Unlimited says it’s delivered the first flight unit of a K-band radio transmitter that’s designed for use on CubeSat satellites as small as a loaf of bread. The SWIFT-KTX ...

Tired of the preprogramed junk that makes up radio? Don’t curse the DJ; seize the airwaves! An FM transmitter (like this one) is a simple device that connects to your music player and broadcasts your ...

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 ...

JBL brought its third-gen JBL Tour One M3 noise-canceling wireless headphones to CES 2025, and it looks like the cans will ...