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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 3850 threads in our archives.
You are currently looking at page 4 of 257.
The threads with the newest additions are listed first.




DSL phone line [12 articles]
Stumpy - 21:59 05-05-08
We just switched over to DSL from modem on home computers. Put DSL filters on the handsets in the house and also on the cord going to the computer modems. When we try to rece... Read More
Need advice [11 articles]
dan - 14:02 05-05-08
Hi, I am interested in pre solid state electronics and would like to learn to design circuits and build my own guitar amplifiers. Every book I've seen so far deals with all ... Read More
Help!!!! [7 articles]
08:59 05-05-08
I want to built a garage for an electric vehicle with a photovoltaic roof and/or a wind generator that will trickle charge the battery. I need a simple, economical DC system wit... Read More
I don't put much mileage on my car
Borked Pseudo Mailed - 08:15 05-05-08
I don't put much mileage on my car http://www.hipcow.com/p/0020/used_car_low_miles/ ... Read More
Phone wiring question [19 articles]
Steven Reynolds - 01:12 05-05-08
I purchased a new home three years ago and I wanted to add an additional phone jack. In my closet, there's the home "Media Center" behind a panel. I see that there is a mainbo... Read More
transistor base input [21 articles]
lerameur - 21:52 04-05-08
Hi all I have an old analog alarm system. I am hooking up the bell output to a microcontroller. Although the output voltage for the bell fluctuates around 6 to 9 volts. I nee... Read More
12v DC power supply read 18v [4 articles]
Ed - 19:53 04-05-08
I bought a cheap 12v DC "wall wart" to operate a simple LED garage door open alert. The circuit has only a microswitch, a 1K ohm resistor, and 12v flashing LED. However, the p... Read More
My ddr dimm's184 pins & slot must be cleaned every week [6 articles]
TE Chea - 14:26 04-05-08
with alcohol & cotton bud, or dimm will jam. Casing's air intake already has filter paper / sponge. Is this dust caused by static electricity ? Any1 here has this dust problem ... Read More
Substituting a digital pot for a mechanical pot in an AC voltage control circuit [9 articles]
eljainc - 16:50 03-05-08
Hello, I have a question. I have been trying using a DS1867 digital potentiometer in a circuit that will replace a mechanical potentiometer of 250KOhm. The circuit/device that... Read More
Magnetic Earphones - Series Or Parallel? [2 articles]
Dave.H - 11:17 03-05-08
I am thinking of building a set of earphones for my regen radio, as an alternative to my extremely uncomfortable antique magnetic earphones. I found some cheap earphones at Antiq... Read More
ultrasonic mister [5 articles]
10:09 03-05-08
I am wondering if it is possible to operate a 24vdc mister on 12vdc? Something simalar to this: Item: MDC01; DC powered mist maker Transformer Input: AC110V; Output: DC24V ... Read More
jessica
anitha - 11:36 02-05-08
Check out our new site! Sexy Hair is cool, hip and edgy with distinguished brand names including Big Sexy Hair, Short Sexy, Straight Sexy Hair, Healthy Sexy ... ^^^^^^^^^^^^... Read More
Garage door alert [19 articles]
Ed - 11:08 02-05-08
I'm in need of a garage door alert so there is a small red light in the house indicating it's open. I bought one made by LiftMaster, but it's not quite right for my situation.... Read More
12 Volt Regulated Supply [9 articles]
Dave.H - 05:54 02-05-08
I was looking at a 12 volt regulated power supply at Dick Smith Electronics cat. number M9935 @ www.dse.com.au for a regen radio I'm planning on building (http://www.schmarder.co... Read More
AC signal across 12V (DC) halogen bulbs? [2 articles]
allanlewis - 19:48 01-05-08
Hi, I have a lighting controller circuit using an H-bridge, which produces a 250Hz signal across a pair of 12V halogen bulbs. (The duty cycle is controller by a microcontrolle... Read More
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