Search found 125 matches

by Tommy volts
Thu Jan 12, 2006 3:38 pm
Forum: General Discussion
Topic: multiple conductors?
Replies: 7
Views: 1882

Re: multiple conductors?

Beginner, If your wires are all insulated, then the current through each wire will vary directly with the wire diameter (inversely with resistance). The potential difference across the branch from supply to load will be the same across each of the individual conductors. In short the current will be ...
by Tommy volts
Thu Jan 12, 2006 10:11 am
Forum: General Discussion
Topic: ground chassis to neutral?
Replies: 10
Views: 2350

Re: ground chassis to neutral?

Gentlemen: Thank you for your answers. Here is what I understood: 1. Neutral to ground could get disconnected or opened somewhere along the circuit,therefore a redundant grounding conductor is necessary. 2. Neutral and hot could be wired incorrectly at locations (e.g., a light switch cut in on the n...
by Tommy volts
Wed Jan 11, 2006 1:20 pm
Forum: General Discussion
Topic: ground chassis to neutral?
Replies: 10
Views: 2350

ground chassis to neutral?

Like many power tools, my 120V electric drill has a 3 wire connection: black is hot, white is neutral, bare copper is the "ground wire" for the chassis ground. My question is: Why not connect the chassis to the white neutral wire and eliminate the redundant "ground wire"?. The safety ground function...
by Tommy volts
Thu Dec 08, 2005 2:57 pm
Forum: General Discussion
Topic: robotics information
Replies: 3
Views: 1375

Re: robotics information

Emad, I am not even close to being a genius but you can't go wrong with building Boebot by Parallax as your start. It comes with a Basic Stamp II and all the stuff you need to build a robot. You can either use the chasis and drive that comes with it or build your own. It is very easy to program. Bes...
by Tommy volts
Thu Dec 08, 2005 2:26 pm
Forum: General Discussion
Topic: Data Logger
Replies: 13
Views: 2873

Re: Data Logger

My 13 year old son has an MP3 player/recorder. Its about the size of a Bic lighter but has has a built-in microphone for voice recording. Can an MP3 player/recorder like that be used?
by Tommy volts
Thu Dec 08, 2005 8:44 am
Forum: General Discussion
Topic: Data Logger
Replies: 13
Views: 2873

Re: Data Logger

Chris,

Is there a non-Apple near equivalent to the Ipod? Does the Ipaq do the same stuff or am I way off? I still use my old m125 Palm Pilot so I am way behind the times on all that stuff.
by Tommy volts
Wed Dec 07, 2005 11:03 am
Forum: General Discussion
Topic: Circuit loading
Replies: 3
Views: 989

Re: Circuit loading

Robert: Indeed. I mixed up the A's and B's on that one.
by Tommy volts
Wed Dec 07, 2005 9:44 am
Forum: General Discussion
Topic: Circuit loading
Replies: 3
Views: 989

Circuit loading

Dear forum members: I built a square wave generator which over heated when I ran it through an amplifier and speaker. I solved the problem I think, but am now trying to get a better understanding of loads, overloads, impedance etc. Please read the two quizes I prepared below. I have answered my own ...
by Tommy volts
Fri Oct 21, 2005 10:26 am
Forum: General Discussion
Topic: DIY Punk Ethic and Culture
Replies: 15
Views: 3589

Re: DIY Punk Ethic and Culture

Philba,<p>Thank you for clearing that up! I like using wikipedia, it is free, but as you have pointed out so well, some of the entries could be B*llSh*t. I agree with your assessment.
by Tommy volts
Fri Oct 21, 2005 8:54 am
Forum: General Discussion
Topic: DIY Punk Ethic and Culture
Replies: 15
Views: 3589

DIY Punk Ethic and Culture

Hi,<p>I've noticed that the expression "DIY" is starting to appear more and more on recent posts. <p>I looked it up on wikipedia where I learned that the expression is about the DIY (do it yourself) movement in the UK. Here are some excerpts from wikipedia:<p>"The DIY ethic is loosely tied to punk a...
by Tommy volts
Tue Oct 18, 2005 1:39 pm
Forum: General Discussion
Topic: Radio Shack getting out of parts supply
Replies: 27
Views: 5775

Re: Radio Shack getting out of parts supply

Matt,<p>The books your talking about were written by Forrest Mimms and are still readily available. It would actually be a real loss if they weren't. The Radio Shack near my house still carries some of the books, reprints of the rest of them can be found at Fry's Electronics and at on-line bookstores.
by Tommy volts
Tue Oct 18, 2005 10:42 am
Forum: General Discussion
Topic: Radio Shack getting out of parts supply
Replies: 27
Views: 5775

Re: Radio Shack getting out of parts supply

I have been buying small electronic components from Radio Shack since I was a boy. I have many fond memories of going to Radio Shack with my dad to get electronics parts for robot projects and other neat stuff back in the early 1970's. <p>There are several very convenient Radio Shacks in my neighbor...
by Tommy volts
Tue Oct 11, 2005 4:33 pm
Forum: General Discussion
Topic: a simple project (hopefully)
Replies: 13
Views: 2587

Re: a simple project (hopefully)

thielenm,<p>If you like Jolly Roger's idea about using IR,
here is a neat project that you can use
IR Remote<p>It is cheap and relatively small and you build it yourself. I bought this kit several months ago.
by Tommy volts
Fri Sep 30, 2005 2:09 pm
Forum: General Discussion
Topic: electric motor question
Replies: 12
Views: 2756

Re: electric motor question

krautschmidt <p>Check out the site below for an explanation of the split phase distribution system you probably have in your house. It is very simple but also dangerous for you and your family if you haven't experience at that sort of thing.<p>You may want to consider having a professional electrici...
by Tommy volts
Thu Sep 22, 2005 10:33 am
Forum: General Discussion
Topic: Green Laser pen
Replies: 71
Views: 13794

Re: Green Laser pen

Chris,<p>I admire your tenacity, and you have on many occasions kindly helped answer questions I have posted regarding electronics projects. <p>If you don't mind I would like to ask you a few questions not related to electronics:<p>Do you believe that the murder of JFK was a conspiracy? Do you belie...