I noticed the same thing. Seems like a pretty good deal. I've read from others here on the forum that it's a rebranded Fiio, but I believe that the Fiio rep also said that they sell OEM parts, which I could take to mean that it might not be 100% an E7 with a different brand name.   In any...

Well I'm not sure what happened, but I picked up two sets of Philips SHE9500's for my wife and I. Not quite as good sounding IMO, but decent

So I've been using these Razer M100's I got over a year ago on some Buy.com sale for like $8. They're decent, especially for the price. But I found lately that the right side doesn't have any.... boom. It's like the whole low end and doesn't really come through anymore. It didn't disappear, but...

Looking at getting one of these for my wife for while she's working... does it last more than 8 hours? Thanks for the pics, it's pretty nice looking.

Thanks a lot tangent! I'm going to be sure to read that again when I get some more parts in a day or two. Some of it is over my head though.... I'm still watching your videos as well, great references for when I'm working.

Okay, I may have found the problem... thanks Emooze for making me think of it... I went to tangent's site, read up on different breadboards... I do in fact have protoboard, and now I see where the problem most likely is... I have soldered the 2nd LED's negative onto the same copper as the...

I used some protoboard, but I was soldering it... didn't think of not having to solder... hmm....

Sorry if I didn't say it in my first post. Yes, I'm using IR LED's, and I know I can't see them on personally, but that's why I'm using a webcam with the IR filter removed to test it.

Yeah, I am using a webcam with the IR filter removed to test it. So if I'm getting basically 9V across each LED... then they've all failed? Would that be possible if the resistor failed like if I heated it too much while soldering? Edit: BTW thanks for all the help

Yeah, I'll give a different LED a try.

Quote: Originally Posted by Logistic These LEDs are rated at 1.3V, you shouldn't have 9V across them. Are you sure you connected them in series like that? Battery positive to resistor to + LED1, right? @obobskivich, I might try switching the middle LED. I'm a noob with all...

I'm trying to set up this program called Freetrack. It's a head tracking program. Basically I'm using a modified webcam that picks up light, but easily picks up IR light. I know it works because I am using my Xbox remote which it picks up VERY easily.

270 ohm, 1/4 watt. I am using infrared LED's with a rating of 1.3V and 20ma. If my calculations are correct.... (9v - 3.9v) = 5.1, 5.1 / 0.020 = 255 ohm resistor.

Hi guys and gals, I tried a super simple DIY project, basically 3 LED's powered by a 9V battery... I followed this diagram: So I connected the battery positive to the resistor, resistor to + LED 1, - LED 1 to + LED2, - LED2 to + LED3, - LED3 to - battery. Simple, right? Lights are...

Good observations, thanks for sharing. Interesting that the Fiio has a standard cross-feed without an on/off switch for it.