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The AN/URM-25 was part of a series of vacuum tube-based signal generators built for the U.S. military in the early Cold War-era.. Today they are collected and used by vintage amateur radio and antique radio enthusiasts who say they provide reasonably high accuracy and stability for a low cost, with build quality reflecting tough military construction requirements and standards.
2007 Toyota Yaris hatchback owner's manual 1919 Ford Motor Company car and truck operating manual. An owner's manual (also called an instruction manual or a user guide) is an instructional book or booklet that is supplied with almost all technologically advanced consumer products such as vehicles, home appliances and computer peripherals.
The Alexanderson alternator transmitter, developed between 1906 and 1915 by Reginald Fessenden and Ernst Alexanderson, was a huge rotating alternating current generator driven by an electric motor at a high enough speed that it produced radio frequency current in the very low frequency range.
Old Navy's Break a Sweat Sale has activewear from $2 — shop our top picks here. AOL. AOL reviewed: This smart humidifier helps me sleep better in the dry winter months. See all deals.
The United States Food and Drugs Administration is warning pet owners about a common medication given to pets to treat arthritis. The F.D.A. now says that the drug Librela may be associated with ...
Victims identified as artistic student and caring teacher. The tragic deaths of a teen student and substitute teacher at Abundant Life Christian School shook the tightly connected school community.
A homopolar generator is a DC electrical generator comprising an electrically conductive disc or cylinder rotating in a plane perpendicular to a uniform static magnetic field. A potential difference is created between the center of the disc and the rim (or ends of the cylinder) with an electrical polarity that depends on the direction of ...
The iconic Riviera Country Club is being threatened while in the mandatory evacuation zone for the Pacific Palisades fire northwest of Los Angeles.