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Sci.Electronics.Basics


Sci.Electronics.Basics is a worldwide Usenet news group that is used to discuss basic electronics questions.

There are 4775 threads in our archives.

You are looking at page 14 of 478.

The threads with the newest articles are listed first.

Robot Motor [4 articles]

CWorth - 2010-05-13 09:57:00
I found a great robot motor and now am looking for solenoids and servos. Does anyone have a great source for these? Sanyo 75:1 Micro Geared Motor - http://www.bgmicro.com/ultimaterobotmotor.aspx ...Robot Motor

Passive Earthquake Proofing w/ Dry Stone [6 articles]

Bret Cahill - 2010-05-11 04:29:00
http://en.wikipedia.org/wiki/Earthquake_engineering#Friction_pendulum_bearing "People of Inca civilization were masters of the polished dry-stone walls, called ashlar, where blocks of stone were c...Passive Earthquake Proofing w/ Dry Stone

Taking Great Pride In Low Tech Long Overlooked Inventions [13 articles]

Bret Cahill - 2010-05-10 02:49:00
Am I the only one? Bret Cahill ...Taking Great Pride In Low Tech Long Overlooked Inventions

Flickering Light [11 articles]

don - 2010-05-10 01:19:00
I have a Luxo asymmetrical task light which takes an 18 watt bulb, which is starting to give me trouble. Most of the time it will just flicker as if it is trying to come on, but sometimes it will ...Flickering Light

Voltage loss over many circuits [12 articles]

eromlignod - 2010-05-09 10:20:00
Hi guys: I'm an ME and I'm trying to drive a large number of circuit boards in a confined area. The circuits are all identical and pull about 150 mA at 5V each. The problem is that there are al...Voltage loss over many circuits

Thermistor Voltage Supply Question [5 articles]

Terminal Crazy - 2010-05-09 06:13:00
Hi guys, quick question for the experts. I'm playing with a system of thermistors feeding an RS485 Networked ADC to my computor. My supply is 5V with a 47k resistor as a Voltage divider with ...Thermistor Voltage Supply Question

magnetics question [2 articles]

Michael Robinson - 2010-05-08 16:49:00
A lot of people have built the circuit in this Home Power article. http://alton-moore.net/graphics/desulfator.pdf There's also an active discussion forum http://leadacidbatterydesulfation.yuk...magnetics question

World's Largest Wheatstone Bridge [39 articles]

Bret Cahill - 2010-05-05 14:44:00
String a wire back and forth across / along a fault line to measure very small displacements in the earth's surface. If the resistance and/or tensile strength needs to be higher than a common singl...World's Largest Wheatstone Bridge

60mV to 10V voltage amplifier [14 articles]

Allen Bong - 2010-05-05 12:52:00
Hello group, I wish to construct a circuit to amplify an input voltage of 0 to 60mV dc to output 0 to 10V linearly. I have came out with a simple circuit as below: TL084 0-60mV ...60mV to 10V voltage amplifier

What's the gain of this op-amp circuit? [8 articles]

Allen Bong - 2010-05-05 02:35:00
Hi, I have been playing with op-amp for the past few weeks and I came across this circuit http://www.flickr.com/photos/11236051@N08/4577591378/sizes/o/ If I am correct, the gain of op-amp U1...What's the gain of this op-amp circuit?
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