Description:
Electronic circuit design.
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OT: Taxes
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**copy** It's Almost Too Late to Escape Pelosi's New Year's Eve Tax Trap By David Galland, Managing Director, Casey Research The administration knows its massive deficits will be poison come the November 2010 midterm elections. At the same time, it also knows if it cuts stimulus spending, it risks kicking the props out from under the... more »
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Questions about triacs
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I don't understand the details of triac triggering. What kind of voltage is needed at the gate to trigger a triac ? I'm looking at the datasheet for bt137... IGT Gate trigger current. Conditions : VD = 12 V; IT = 0.1 A T2+ G+ typ. 5mA T2+ G- typ. 8mA T2- G- typ. 11mA T2- G+ typ. 30mA Say I want to control mains voltage and trigger the triac at different... more »
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What is awesome in German?
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Just got a text from my kid "What is awesome in German?" Numerous smart-ass answers leaped to mind, including "idiomatic", "Anne- Sophie Mutter", "Katerina Witt", etc. But I thought perhaps he meant "what German idiom means the same as the US idiom 'awesome'?" Anyone know? Jeorg?
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DS1210 NVram Controller Puzzle
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I am looking for some historical information regarding this component. The DS1210 has been around for some time (around '90, I think) and was first made by Dallas Semi before being acquired by Maxim Semi. Tektronix designed one of these parts (around '90 or so) in one of their spectrum analyzers to back up some SRAM parts. I have posted... more »
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Ping Bil Slowman; The global warming hoax reveiled
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The global warming hoax revealed: [link] <Quote from that article> This shows these are people willing to bend rules and go after other people's reputations in very serious ways,' he said. Spencer R. Weart, a physicist and historian who is charting the course of research... more »
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Fantastic new audio amp !
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100Watts, runs from a 1.5V battery . Yes, that's correct ! So that would be a 500AHr. single nicad then, with a 2C charger. Its true ! [link]
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OT: "fair" partnership with the FED
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I'd like to make you a business offer. Seriously. This is a real offer. In fact, you really can't turn me down, as you'll come to understand in a moment... Here's the deal. You're going to start a business or expand the one you've got now. It doesn't really matter what you do or what you're going to do. I'll partner with you no matter what business you're in –... more »
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Theremin...
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My little daughter wants to 'do' some electronics with me during these christmas vacation. :-))) As all young kids she's got totally unrealistic ideas, but when I told her about the theremin, she got enthusiastic and I feel this might be the right project: she's learning piano and music, has an amazing ear... more »
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day shot to hell
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OK, I just got the first board from production this morning, for this spectroscopy controller thing. [link] It gets 12 volts in, which runs an LTM8023 switcher brick to make 3.3 volts. The 3.3 runs most of the logic on the board (including a Spartan 6 and a PLX PCIe bridge, both BGAs) and also drives four... more »
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