Search found 63 matches

by Gary
Wed Mar 12, 2003 2:28 pm
Forum: General Discussion
Topic: Are most people here Electrical/Electronics engineers?
Replies: 36
Views: 10714

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...
by Gary
Sun Feb 16, 2003 6:58 pm
Forum: General Discussion
Topic: National Electric Code
Replies: 8
Views: 2997

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 ...
by Gary
Sun Feb 16, 2003 6:48 pm
Forum: General Discussion
Topic: Electric Vehicles
Replies: 36
Views: 12454

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...
by Gary
Wed Jan 22, 2003 7:58 pm
Forum: General Discussion
Topic: Auto starter motor
Replies: 6
Views: 2617

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.
by Gary
Mon Dec 30, 2002 10:40 pm
Forum: General Discussion
Topic: Christmas lights
Replies: 10
Views: 3604

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 of the facts, but it...
by Gary
Fri Dec 27, 2002 11:47 pm
Forum: General Discussion
Topic: Christmas lights
Replies: 10
Views: 3604

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...
by Gary
Sat Dec 14, 2002 4:24 pm
Forum: Robotics
Topic: stepper motor controller for pc cnc
Replies: 2
Views: 2767

Re: stepper motor controller for pc cnc

I built mine from plans by kleinbauer.com
by Gary
Tue Oct 08, 2002 10:08 pm
Forum: General Discussion
Topic: X10 question
Replies: 8
Views: 3668

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.
by Gary
Sat Oct 05, 2002 9:01 pm
Forum: General Discussion
Topic: Funny radio shack story & question
Replies: 5
Views: 2453

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 graze, offer...
by Gary
Sat Oct 05, 2002 8:51 pm
Forum: General Discussion
Topic: Funny radio shack story & question
Replies: 5
Views: 2453

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.
by Gary
Mon Jul 22, 2002 1:06 am
Forum: General Discussion
Topic: Requesting deletion of eccentric flywheel garbage
Replies: 27
Views: 13016

Re: Requesting deletion of eccentric flywheel garbage

Keymaker: please let me know your email address.
by Gary
Sat Jul 20, 2002 10:30 pm
Forum: General Discussion
Topic: Requesting deletion of eccentric flywheel garbage
Replies: 27
Views: 13016

Re: Requesting deletion of eccentric flywheel garbage

Spoken like a gentleman.<p>Yes, there may be better places for such discussions.
by Gary
Sun Jul 14, 2002 12:55 am
Forum: General Discussion
Topic: Keeping It Cool: Fans, Insulation, Peltier Cooling Modul
Replies: 9
Views: 3608

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.
by Gary
Sun Jul 14, 2002 12:40 am
Forum: General Discussion
Topic: Keeping It Cool: Fans, Insulation, Peltier Cooling Modul
Replies: 9
Views: 3608

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...