Mini-Circuits’ RF power amplifiers have set an ordinary for wideband, high power amplifiers power performance in the RF and microwave business. Our energy amplifier portfolio features fashions with broad bandwidths starting at one hundred kHz and extending past 18 GHz with output power (P1dB) from 1/2 Watt up to 100W. Our broad choice of power amplifiers comes from a long time of in home design expertise, offering business-main combinations of bandwidth, output power and linearity, including designs able to Class-A and Class-AB operation. Rugged and dependable for demanding operating environments, Mini-Circuits energy amplfiers characteristic quite a lot of built-in protections together with over-temperature, over-voltage and immuity to open and quick masses.
Turntables turn, turn, flip by way of two totally different mechanisms: direct drives and belt drives. Direct drive turntables are a comparatively new know-how in the world of file players: They were launched in 1969 by the Technics division of Matsushita Electronics, now known as Panasonic [supply: Henry]. The direct drive derives its identify from a motor positioned straight under the turntable platter. That motor powers the platter above it.
The undershot wheel, another Roman invention, rotated below the pressure of flowing (rather than falling) water, making it potential to construct floating waterwheels to grind grain provides. This got here in useful during the siege of Rome in 537 A.D., when the defending normal, Belisarius, solved the problem of the Gothic siege slicing off meals supplies by constructing several floating mills on the Tiber to keep the populace equipped with bread.