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Sci.Electronics.Basics
Sci.Electronics.Basics is a worldwide Usenet news group for discussion of electronics where there is no such thing as a stupid question. Beginners questions. Discussion of electronics education. Requests for other sources of information.

There are 4636 threads in our archives.
You are currently looking at page 42 of 310.
The threads with the newest additions are listed first.




landscape lighting [25 articles]
16:05 23-06-08
We got a 12V outdoor landscape light kit from Big Lots (was about $30). 20 lights, 4W ea bulb, 100W 12VAC switching power supply. After a few hours, the power supply burned ou... Read More
Soldering onto NiMH batteries? [10 articles]
DeanB - 14:01 23-06-08
Hello all, I've only done a little soldering before, but I want to rebuild a battery pack for my TI-59 calculator (which is basically 3 AA-sized batteries soldered together in... Read More
suggest LED + transistor for PC? [2 articles]
Impmon - 13:43 23-06-08
I wanted to change the indicator LED a bit. First off, the HD indicator LED is uselessly dim because of a cheap optic guide so I'm going to discontinue that LED and I wanted to u... Read More
Is Rigol Good ? [8 articles]
Talal Itani - 09:51 23-06-08
Hello, Somebody recommended a Rigol mixed signal oscilloscope. I checked the Rigol website. Do you know anything about this company, these scopes? Thanks. http://www.rigo... Read More
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sri - 07:37 23-06-08
****HOT INCOME EVERY MONTH!!**** EARN $3000 -$5000 FROM HOME!!**** NO Hello Mates, I want to show you all a great way on how to earn money . It is completely safe and legal.... Read More
speaker interference creation [4 articles]
luke@talesa.net - 06:02 23-06-08
Hi there, I've noticed that my GSM phone creates a noise through my speakers sometimes (ie when the phone is communicating with the mothership). No, I don't want to know how to s... Read More
which PC Based Logic Analyzer ? [5 articles]
Talal Itani - 04:16 23-06-08
Hello, At work we have an Intronix Logicport PC based logic analyzer. It is good, I like using it, but it has very little memory (2048 samples). Can you recommend somethin... Read More
Questions about battery leak [4 articles]
void.no.spam.com@gmail.com - 02:49 23-06-08
I have a handheld video game that takes 4 alkaline size C batteries, and I had left it in a corner 5 years ago and forgotten about it. I finally looked at it today and there mus... Read More
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How to optimize parameters for making a coil with high-Q? [23 articles]
Arthur C. - 18:39 22-06-08
I want to make a simple coil (inductor) with a Q value as high as possible. Now, I would like to know if there are simple guidelines on how to choose the parameters to obtain thi... Read More
please help me [7 articles]
17:24 22-06-08
please sene me solution manual of principles of communication engg by staub and schiling nad solution manual of digital & analoge electronics by millman halkies ... Read More
How can I vary an Ultrasonic Mist Maker vibration using a sound card tia sal2 [6 articles]
sal2 - 16:53 22-06-08
Greetings All I would like to vary an ultrasonic mist maker like this one http://www.physlink.com//estore/cart/UltrasonicMistMaker.cfm using my audio sound card. Example: ... Read More
Making an EMF Detector [2 articles]
21:15 21-06-08
Hey everyone. I am in the final stages of making my EMF Detector but the schematic shows a 1mH inductor/probe for the device and it has been YEARS since I made one and cant reme... Read More
learning about transistor equivalent to R_ds_on [12 articles]
15:34 21-06-08
In this data sheet for the TIP31A: http://www.fairchildsemi.com/ds/TI/TIP31A.pdf The spec is given: VCE(sat) * Collector-Emitter Saturation Voltage IC = 3A, IB = 375mA: 1.2... Read More
voltage question [11 articles]
Starman - 12:04 21-06-08
Hi, I'm a newbie and wanting some advaice. I just purchased a multi-meter and was wondering when I check the charge or voltage of a 1.5 battery, do I place the switch selector... Read More
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