| Sure. |
http://denver.craigslist.org/clt/353578110.html -- "I'm never wrong, once i thought i was, but was mistaken" Real Programmers Do things like this. http://webpages.char...
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| Another transistor question |
Hi, I was trying to understand a NOT gate implementation at the following page: http://www.kpsec.freeuk.com/trancirc.htm#inverter AFAIU, if the transistor is open (i.e...
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| Is it the DVD, or the player at fault....? |
I have a 3 year old RCA DVD player which, for the most part works well. Lately, however, there will be certain movies that I have problems viewing. Certain scenes will not be able to be vi...
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| AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency |
Hi: Please don't be annoyed/offended by my question as I decreased the modulation frequency to where it would actually be realistic. I have a very weird question about elect...
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| Op-Amp input offset voltage vs. time |
I have a simple, but curious question about an op-amp specification: input offset voltage vs. time. I see this specified as uV/mo. Is this caused by general aging of the part; i.e., regard...
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| Philips to acquire Color Kinetics |
In order to strengthen strengthen leading position in Led lighting systems, components and technologies Philips acquries Color Kinetics. The details regarding this are available at
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| will this cause a voltage spike? |
I need to interface a relay to an old CNC machine. The machine sends a 24 volt pulse as a signal to operate turrets, indexers, etc. I need to keep a relay on for about 1 second after being a...
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| Laptop AC Adapter with fluctuating DC output |
I have a dell laptop that won't power on or charge the battery but ran fine on battery until the battery lost its charge . I checked the DC output of the AC adapter with a multimeter and it...
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| Designing a powersupply for DVD-player |
I have a DVD-player (standalone player from Philips, called DVD963 SA) where the powersupply has died. This is a great player and I want to fix the powersupply, but they (Philips) won...
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| Split Faraday's Law |
Split Faraday's Law -- the scientific concept of the Declaration gave me the strength to speak, I argue a long-planned cut -- is a potential. Alternator b. DC (commutator) c generators. d DC...
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| Is this practical? |
My neighbor and I were talking the other day about the frozen pipes in his shop. This is because he didn't insulate enough the pipes in the walls and because it's only heated when he is work...
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| Hobby electronics projects-- fire safety? |
I'm a newbie to electronics, but I've come up with a project to cool a closed electronics cabinet. It uses an ac-dc 12V power (wall wart) adapter which would power a 500mA load. The adapte...
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| Newbe needs help MOSFETs and PCB |
Greetings everyone, I am a rank amateur with electronics. I have found a Battery Isolator schematic at Discover Circuits.com and I would like to build one of these. I understand what ...
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| SuperSea = Croatia |
SuperSea = Croatia Wonderful beach, crystal water and beautiful girls and boys. Land of naturism, pleasure and fun. Discover Croatia, discover you! http://www.studiopas...
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| AM electromagnetic waves: astronomically-high modulation frequency on an astronomically-low carrier frequency |
Hi: Please don't be annoyed/offended by my question. I have a very weird question about electromagnetic radiation, carriers, and modulators. Is it mathematically-...
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| Analog Switch question |
Hello I have an analog switch question. For this example, I would like to use Texas Instrument's TS5A3159A SPDT Analog Switch. For the digital input (triggers the switch ON ...
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| Poll: would you rather... |
Live on a deserted island the rest of your life... Not have sex or masturbate the rest of your life... or Not be able to talk for the next 10 years? Just an...
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| 200 vs. 1200 ohms in laptop fan |
Is a small fan for a laptop computer basically in working order if its resistance measures about 1200 ohms +/- 4% when it should be 200 ohms? I don't know the proper design tolerance. ...
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| building an H-bridge |
Could four of these TRIACs be used to build an H-bridge? http://www.mouser.com/search/ProductDetail.aspx?R=Z00607MA_1BA2virtualkey51120000virtualkey511-Z00607MA I'm only planning...
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| Q: Transistor as a switch with pull down ? |
Hi all. I am interfacing an PIC microchip to a relay by using a normal NPN transistor. The relay is connected between +12v and collector. A protection diode in reverse has also ad...
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| electromagnet winding |
hello I am winding an electromagnet with some 29awg magnetic wire. I want to make to electromagnet with the same strength, but one core is about 3 time as big as the first. With ...
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| Why use a transistor to drive a motor? |
Hi, I was looking at the following circuit: http://static.flickr.com/56/145174497_d31b603880.jpg and I was wondering why the transistor is used in the first place. From w...
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| Good Semiconductor IC / Bad semiconductor IC? |
When it comes to memory ICs, made by different manufacturers, can there be a low quality IC and a high quality IC.
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| LED Reverse Voltage |
Is there any problems with applying a reverse V that is <= Vr of an LED? I'll limit it through a 10K resistor also.... Thanks, John
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| who manufactures these flash memories? |
Who manufactures SD, miniSD, and microSD memory? These memories are sold under many names, yet I am trying to find a manufacturer, or a wholesaler. Thank you.
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| Why am I so bad with op amp calculations? |
Hello all.. I have this circuit: http://bayimg.com/aAclCaabB It's just a basic summer circuit in single supply mode. I don't understand why I cannot resolve the equation similar t...
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| 6000$ mp3 player!!! |
... not sure worth a buy but definitely worth a watch!! http://www.nachofoto.com/foto?i=4966a9d78c69
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| Free 802.15.4/ZigBee design |
Free 802.15.4/ZigBee design Free design of temperature sensors network elements has been published on the site: http://www.stp-electronics.com/
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| Current calculation of passive RLC network using DE |
Hi Experts, Not entirely sure if this posting is more appropriate in the symbolic.math group or this group, but since it is a current calculation, I'm thinking its fine to post ...
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| hk |
hi
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