The airflow is rather low. I found that for more substantial work a hot air gun with temperature control is better suited. But for small stuff you can...
62568
John Popelish
jpopelish
Jul 2, 2010 3:24 pm
... Okay, I'm stumped. Next time you have it open, take a picture and I'll see if I can figure it out. It would be pretty cheesy if they used winding...
62569
orvillefpike
Jul 2, 2010 4:49 pm
That's what I think also. It seems to me that there is a risk that a small wire might melt. The wires go from #14 all the way to #3. If it was a taped...
62570
Howard Hansen
hrh1818
Jul 2, 2010 5:30 pm
One suggestion The book "Extreme NXT Extending the Lego Mindstorms NXT to the Next Level" on pages 184 to 190 shows a Bipolar MOSFET Amplifier circuit for ...
62571
kishan raithatha
letsvbfriend...
Jul 2, 2010 7:05 pm
hello, when does an opamp get saturated or what is saturation in an amplifier? I have built an instrumentation amplifier circuit and a right leg drive ...
62572
John Popelish
jpopelish
Jul 2, 2010 7:16 pm
... Sorry, but Yahoo Groups strips all attachments. You will have to store them on the group web page under the files section or elsewhere and point us...
62573
jongkung01
Jul 2, 2010 9:51 pm
Hi guys, What are some diff in WHITE LED? The reason I ask is because there's a sale on LED flashlight, but it is TOO CHEAP: ...
62574
Scott
electroscott
Jul 2, 2010 10:07 pm
At that price, these are pretty much junk. Look for packaging that says Luxeon, Cree, or Nichia on it, or at least says 1watt or better LED installed. Better...
62575
Howard Hansen
hrh1818
Jul 2, 2010 10:12 pm
From your description it appears you are at a college and will have access to a signal generator and oscilloscope. There are two tests you can easily run to...
62576
Roland F. Harriston
mandella33
Jul 2, 2010 10:16 pm
... My experience with the cheapo LED flashlights established (to me, at least) is that the LED's fail in a very short time, leading me to believe that the...
62577
Roland F. Harriston
mandella33
Jul 2, 2010 10:20 pm
I'd say that the Home Depot package is "Too Good To Be True". If you go to Home Depot, purchase their regularly-stocked items. But, H.D. is very good about ...
62578
Andrew Villeneuve
andrewmv...
Jul 2, 2010 11:40 pm
I've had a 1W x 1 LED Coast TacTorch for about 6 years now, under pretty regular use, and there's been no dimming. High quality, and by far the brightest mini...
62579
derek
redderek
Jul 3, 2010 12:54 am
I bought a package of 10 flashlights from HD - thought it was cheap to get. These work pretty well and I have not had problems with any of the flashlights. ...
62580
jong kung
jongkung01
Jul 3, 2010 3:44 am
Scott, ... My car broke down last week and I didn't have any flashlights. I was planning to get some flashlight (to keep in the cars) but the the car broke...
62581
kz4rv
Jul 3, 2010 5:41 am
Let's say I have 3-5 of those cheap, outdoor, passive IR lamps that turn on the floodlights when something warm passes by. Does anybody know of a *known*, easy...
62582
kz4rv
Jul 3, 2010 7:50 am
Let's say I have 3-5 of those cheap, outdoor, passive IR lamps that turn on the floodlights when something warm passes by. Does anybody know of a *known*, easy...
62583
Leon Heller
leon_heller
Jul 3, 2010 8:17 am
... Just hooking a light sensor up to a cheap transmitter should work, with a receiver in the house. Leon -- Leon Heller G1HSM...
62584
Howard Chester
howard.chester
Jul 3, 2010 2:04 pm
The simplest way that I can think would be to use an astable version of the NE555 (CMOS version ?) driving an Infra-Red LED pointing towards the house. At...
62585
Chuck Merja
ebiz_59
Jul 3, 2010 2:05 pm
Wow, Howard - nice recommendation! Thanks! This will keep the kids (and me) buzy:o)) I wish there was a bill of materials for each chapter or for the whole...
62586
Chuck Merja
ebiz_59
Jul 3, 2010 2:12 pm
Thanks for all the help! Anyone have experience or resources for adding bigger motors to a VEX kit. I think the VEX controller actually puts out a PWM, then...
62587
Frank P
qz9090
Jul 3, 2010 2:33 pm
Jong, Most of the cheap LED flashlights do not have a current limiting resistor on the LEDs, therefore leading to LED burnout. In the last 9+ months Harbor...
62588
Scott Burris
electroscott
Jul 3, 2010 2:41 pm
I use a keychain light for this, so it doesn't just sit in the car. This isn't cheap ($39) bur it's small and bright: ...
62589
Mitch Reid
mitchreid@...
Jul 3, 2010 2:51 pm
For a while they were carrying three AAA cell mini LED flashlights at the 99 cent store The batteries cost more than the lights. I bought a couple at first and...
62590
James M. (Jim) Geidl
jgeidl...
Jul 3, 2010 3:27 pm
X10 has a device that senses when power has been applied to a circuit and it sends an X10 signal to turn on another X10 device. Take look at www.smarthome.com...
62591
jong kung
jongkung01
Jul 3, 2010 5:04 pm
Hi guys, ... use item, what the heck. On that premise, I decided to get the pack and test them out. For $15 (and HD return policy) I can't go wrong - or can...
62592
DaveC
davec2468
Jul 3, 2010 6:20 pm
... I frequently work around mains voltage inside machinery. A non-metallic light is a must. Just thought I'd remind everyone of that importance... Dave...
62593
Stefan Trethan
stefan_trethan
Jul 3, 2010 8:54 pm
Good advise, that. But I do like stainless steel lights, and also the aluminium ones. I suppose I ought to take extra care when working on energized equipment,...
62594
DaveC
davec2468
Jul 3, 2010 9:16 pm
... Another option is to get large-diameter shrink tubing and make your own insulated light from the metal ones. Need to slit it at the threaded mating parts,...
62595
jong kung
jongkung01
Jul 4, 2010 12:31 am
... At $1 a pop, I think it would be simpler to get this plastic flashlight pack. The shrink tubing aren't cheap. ==== Keep your eyes open on the Ebay. I...
62596
orvillefpike
Jul 4, 2010 1:26 am
I was always a little confused with the effect the current and the voltage has on a transformer. Here's what I understand, tell me if I'm wrong. When a voltage...
