Description:
Electronic circuit design.
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Nanjing Job Fair
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Nanjing Job Fair College students crowded a job fair in Nanjing, in eastern China's Jiangsu Province. Chinese officials warned Thursday that the country faces a "grim" employment outlook as the economy begins to slow. [link] Regards,... more »
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Barack does Arizona a favor
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Barack has chosen Arizona Governor Janet Napolitano to head Homeland Security... [link] "...is tough on illegal immigration, child abuse and Republicans". Sure she is... she tries to thwart Sheriff Joe at every turn. Her... more »
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Op-Amp Help Please
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OK, gang, I got my breast in the blender for not reading the data sheet closely enough. And the board is already done for twenty of my students and reordering boards is not an option this late in the semester. Here is the problem: I have a raw +17 volt power supply (transformer, bridge rectifier, large filter capacitor) feeding an LM317 regulator to... more »
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Stereo and bass signal into bass speaker cabinets
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Hi, I would like to find a way to play both my stereo and bass guitar through a pair two 4x10" bass guitar speaker cabinets. Since the cabinets have two sets of input jacks (1/4" and Speakon) I was wondering if I am able to feed the bass signal coming from a mono bass amp (700W @ 8 ohms) to each of the two cabs and use the remaining 1/4"... more »
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High voltage buck and forward converter .... - or one stage direct
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Hi I need to design a wide input range converter (16VDC to 600VDC) with two 5V outputs with a total power of 25W. The supply needs to be double isolated and my first thought was to use a HV buck converter to step the voltage to 16V and then a forward converter (half-bridge) to step down to 5V and provide safety... more »
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Electronic shutter?
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I am looking for a relatively inexpensive device that can switch between transparent and opaque at up to about 100Hz. Where do I find such a device? I have tried googling for "LCD shutter", but all I can find, are incredibly expensive stuff. I need only good enough contrast to be visually transparent and... more »
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Rukycon capacitors
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Against a spec for low impedance electrolytics the contractors (in ROC) have included for Rukycon SXE low impedance devices and have forwarded the datasheets thereof. I can find no (english) website for Rukycon - and have virtually no info about this company or its products. Being a little suspicious of a company that copies the Rubycon logo... more »
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Chinese antique
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Chinese antique world first, the antique chinaware series please watch! Entire fidelity 100% Antique (1912-1949) Republic of China porcelain teapot 888 chinawares 400 please watching! Website [link] E-mail xjx_...@tom.com City Shengzhou Zhejiang China 全球唯一、古董瓷器系列民国瓷茶壶888把请观赏！... more »
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best digital cameras online
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buy digital cameras - buy low prices best n cheap digital cameras, homeshop18 offers olympus, sony cyber shot digital camera from online shop at very low cost in india. Buy your own now Fujifilm 8.3 Mega Pixel Digital Camera Model No: F40, Sony Cybershot 10 Mega Pixel Digital Camera Model No: T300, Panasonic Lumix 8.1 MP Digital Camera Model No: TZ11,... more »
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