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Low self-discharge nickel–metal hydride battery: 500–1,500 [14] Lithium cobalt oxide: 90 500–1,000 Lithium–titanate: 85–90 6,000–30,000 to 90% capacity
However, it was not until 1963 the Topcon name became famous by introducing the Topcon RE Super, an event that took the entire camera industry by surprise: This camera featured through-the-lens exposure metering, at full lens aperture. The RE Super was fully prepared for professional work, supported by a choice of lenses and accessories to ...
A Battery: Eveready 742: 1.5 V: Metal tabs H: 101.6 L: 63.5 W: 63.5 Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threaded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies.
A zinc-carbon lantern battery, consisting of 4 round "size 25" cells in series. Terminated with spring terminals. 4LR25-2: 4: L: R: 25: 2: An alkaline lantern battery, consisting of 2 parallel strings of 4 round "size 25" cells in series 6F22: 6: F: 22: A zinc-carbon rectangular battery, consisting of 6 flat "size 22" cells. Equivalent to a PP3 ...
TOPCON was established in September 1932 [4] based the merger of the surveying instruments division of K. Hattori & Co., Ltd. (now known as Seiko Holdinge Corporation) in order to manufacture the optical instruments for the Japanese Army.
U.S. Treasury Secretary Janet Yellen met virtually on Monday with Chinese Vice Premier He Lifeng and raised concerns about "malicious cyber activity" carried out by Chinese state-sponsored actors ...
Dust bunnies beware: This whisper-quiet floor cleaner easily glides under sofas and runs for up to two hours. It's just $100 and will arrive by Christmas.
The idea is simple. Once a game, a manager gets to put his best batter at the plate regardless of where the batting order stands. So imagine, as a pitcher facing the Dodgers, you get Shohei Ohtani ...