Search found 63 matches
- Wed Mar 12, 2003 2:28 pm
- Forum: General Discussion
- Topic: Are most people here Electrical/Electronics engineers?
- Replies: 36
- Views: 14296
Re: Are most people here Electrical/Electronics engineers?
Professional: Traditionally it ment a field that required a four-year college degree or better plus a year or more of practice allowing one to take some kind of comprehensive test leading to certification or licensure of some kind in that field. Doctors, Lawyers, Architects, etc.<p>Now days, the ter...
- Sun Feb 16, 2003 6:58 pm
- Forum: General Discussion
- Topic: National Electric Code
- Replies: 8
- Views: 4116
Re: National Electric Code
Underwriter's Laboratories (UL) may be a source of some of the wattage limitations. 1650 watts seems to be a common maximum if I recall correctly. I used to be a salesperson at electrical and plumbing departments at a hardware store (OSH). They had almost a dozen models of room heaters etc, and all ...
- Sun Feb 16, 2003 6:48 pm
- Forum: General Discussion
- Topic: Electric Vehicles
- Replies: 36
- Views: 17423
Re: Electric Vehicles
A problem with conventional electric vehicles is that people are easily misled. A report may say the car will go up to 60 mph and up to 60 miles. A reasonable person might assume that they could go almost 60mph for almost 60 miles. However, the numbers for range and speed are usually extremes of opo...
- Wed Jan 22, 2003 7:58 pm
- Forum: General Discussion
- Topic: Auto starter motor
- Replies: 6
- Views: 3589
Re: Auto starter motor
Starter motors are ment for short-term use at their rated voltage. A method around this I've seen is a 12v starter motor coupled with a 6v deep-discharge battery.
- Mon Dec 30, 2002 10:40 pm
- Forum: General Discussion
- Topic: Christmas lights
- Replies: 10
- Views: 4997
Re: Christmas lights
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr>I know the lights your talking about that flash every other bulb, that's real close...<hr></blockquote><p>That's not what I ment. I ment that each bulb was fully independently flashing. Am not sure ...
- Fri Dec 27, 2002 11:47 pm
- Forum: General Discussion
- Topic: Christmas lights
- Replies: 10
- Views: 4997
Re: Christmas lights
Seems like I had a set ten years or so ago and they stopped making them fairly quickly. I think the set I had was supposed to be low voltage, and all the bulbs flashed randomly. May have been a mixture of series and parallel circuit.<p>It worked okay for a while, but as the bulbs flashed randomly, t...
- Sat Dec 14, 2002 4:24 pm
- Forum: Robotics
- Topic: stepper motor controller for pc cnc
- Replies: 2
- Views: 3563
Re: stepper motor controller for pc cnc
I built mine from plans by kleinbauer.com
- Tue Oct 08, 2002 10:08 pm
- Forum: General Discussion
- Topic: X10 question
- Replies: 8
- Views: 5048
Re: X10 question
Are you saying you can't get the signal to work out there?<p>My understanding is that it isn't a wireless controll, but uses a signal traveling along the 110v line. Distance shouldn't matter much.<p>Correct me if I'm wrong.
- Sat Oct 05, 2002 9:01 pm
- Forum: General Discussion
- Topic: Funny radio shack story & question
- Replies: 5
- Views: 3335
Re: Funny radio shack story & question
We have a half dozen Rad Shacks in this town. I try to use the "techie" one when I can, even though out of the way. They don't treat you like a nerd (rhymes with t***) when looking at components. Or pondering design ideas. And they don't jump you as you enter the store, but allow you to gr...
- Sat Oct 05, 2002 8:51 pm
- Forum: General Discussion
- Topic: Funny radio shack story & question
- Replies: 5
- Views: 3335
Re: Funny radio shack story & question
The old computer keylocks are all keyed alike apparently, although not everyone knows that. I have such a key on my keyring for a removable hard drive.
- Mon Aug 05, 2002 6:23 pm
- Forum: General Discussion
- Topic: Requesting deletion of eccentric flywheel garbage
- Replies: 27
- Views: 19154
Re: Requesting deletion of eccentric flywheel garbage
My mistake. I thought it was [email protected]
- Mon Jul 22, 2002 1:06 am
- Forum: General Discussion
- Topic: Requesting deletion of eccentric flywheel garbage
- Replies: 27
- Views: 19154
Re: Requesting deletion of eccentric flywheel garbage
Keymaker: please let me know your email address.
- Sat Jul 20, 2002 10:30 pm
- Forum: General Discussion
- Topic: Requesting deletion of eccentric flywheel garbage
- Replies: 27
- Views: 19154
Re: Requesting deletion of eccentric flywheel garbage
Spoken like a gentleman.<p>Yes, there may be better places for such discussions.
- Sun Jul 14, 2002 12:55 am
- Forum: General Discussion
- Topic: Keeping It Cool: Fans, Insulation, Peltier Cooling Modul
- Replies: 9
- Views: 5045
Re: Keeping It Cool: Fans, Insulation, Peltier Cooling Modul
4. make the box as small as possible. the less surface area the better. You might even consider a short cylinder as a box to further limit surface area. You might even be able to use pipe insulation, although the R value is not great.
- Sun Jul 14, 2002 12:40 am
- Forum: General Discussion
- Topic: Keeping It Cool: Fans, Insulation, Peltier Cooling Modul
- Replies: 9
- Views: 5045
Re: Keeping It Cool: Fans, Insulation, Peltier Cooling Modul
I'd like to mention that a COMBINATION of insulation and heat transfer is needed.<p>As an architect, I know a bit about heat transfer and insulation. I've even been thinking of a solid state solar water heater using Peltier junctions, but found that they weren't that efficient, and that they don't w...