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| FM Receiver 4 Transistor by BF184 | | 2008-01-17 09:09:08 | | This is a pocket sized receiver I built in 1994. The idea was to make a simple but useable receiver running off 3V. My previous 6 transistor receiver was more bulky, requiring 12V. This meant 10 x AA cells. I designed and made a PCB, and constructed a small aluminium case to keep the receiver [...]... | | By: Circuit Project Electronic | | |
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| 6 Transistor Super Regen Receiver by BC548 | | 2007-12-18 21:38:26 | | This little super-regenerative receiver is essentially an AM receiver, with “slope detection” used for FM. By tuning to one side of the carrier, the receiver’s tuned circuit converts FM to AM. The bandwidth is about 200KHz so wideband FM stations can be demodulated by tuning the receiver to the most linear point of the response [...]... | | By: Circuit Project Electronic | | |
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| Transistor's 60th Birthday Raises Size-Saturation Concerns | | 2007-12-17 10:25:00 | | Sixty years after transistors were invented and nearly five decades since they were first integrated into silicon chips, the tiny on-off switches dubbed the "nerve cells" of the information age are starting to show their age.The devices — whose miniaturization over time set in motion the race for faster, smaller and cheaper electronics — have been shrunk so much that the day is approaching when it will be physically impossible to make them even tinier.Once chip makers can't squeeze any more into the same-sized slice of silicon, the dramatic performance gains and cost reductions in computing over the years could suddenly slow. And the engine that's driven the digital revolution — and modern economy — could grind to a halt.Even Gordon Moore, the Intel Corp. co-founder who famously predicted in 1965 that the number of transistors on a chip should double every two years, sees that the end is fast approaching — an outcome the chip industry is scrambling to avoid."I can see (it l... | | By: Beta18>>Technology HotSpot | | |
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| Celda solar con transistor | | 2007-05-25 16:59:00 | | Para los amantes de la electrónica, aquí está este proyecto sobre la construcción de una celda solar con un transitor.
Celda Solar: superficie de silicio que convierte la energía proveniente de la luz directamente en electricidad. Las celdas solares también se conocen como celdas fotovoltaicas (foto +
voltaje). Cuando se exponen a la luz, las celdas [...]... | | By: Blog Guatemala | | |
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