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I had a net in the schematic which maps to a wire on the PCB. Then I realized the wire (complicated antenna shape) required two nets. Unfortunately, that means I have to ripup half the antenna, and redraw it to assign it to a new net. Is there not a way to just split the wire, and assign half...
I have had a lot of success soldering SMT chips (80 pin, etc) using toaster oven reflow. The trick is to make sure you have a good solder mask layer on the PCB (I use https://www.4pcb.com to make my boards and have no trouble). Then you use a reflow designed solder, not wire solder. It comes...
Thanks avesat. I also found a reference which gives all the physics behind why to use solid pours for high frequency boards, and the contrast against hatched. Cool!
http://www.emchome.net/article.php/3095
I often see a couple caps placed in parallel on the board, each may be say, 10 nF or one is 10 nF and one is 0.1 uF. Why do this? Why not just add one 0.2 uF cap and get even more smoothing with fewer parts for manufacturing? I can see having multiple caps at opposite ends of the board, but...
Re: Some Physics Snacks
1) If you took the Earth away, "poof," and the Moon were at just that part of the orbit where it were moving in the same direction as the Earth, then it would continue in an Earthlike orbit around the Sun. Since both the Earth and the Moon are revolving around the Sun...
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I use PDF 995 (http://www.pdf995.com/). It installs as a printer driver. Then you can print anything from any program but select pdf995 instead of your officejet or whatever you have. It has annoying popups, but it saves you the cost of the pro version of Adobe...
Who has had a good experience with an assembly house (I'm talking about AFTER pcb manufacture, and now you want to get the parts soldered on). I'm dealing with hundreds of units ... for now. Maybe in the future I'll be doing thousands or more, so I'm interested in anyone's experience.
If...
eagle signal name already exists pour
I'm using 4.16r1, which is the newest, I think. However, using the vector font did fix my schematic module. In the board layout I still have to tapdance the F2 key constantly because wires are not dynamically redrawn. I did suspect this was the same...
fix illegal saves files cadsoft eagle
Well, I may reproduce it and then post a picture of it if I can. But in any case I've got an answer -- it's probably a problem with my drivers or something unusual on my system since nobody else seems to get it. Thanks!
Re: wireless electricity
The primary issues are directivity and absorption of energy by the intervening medium. Consider that in a wire, the electricity is transferred by electrons that are already present in the wire. A current traveling down the wire has essentially one dimension along...
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