Search found 113 matches

by jaem
Sat Nov 17, 2007 11:21 pm
Forum: Computer Programming
Topic: PICKit2, FTDI, and USB
Replies: 4
Views: 5049

Re: PICKit2, FTDI, and USB

-------------------------------------------------------------------------------- Well, wouldnt the Schmartboard still require soldering those extremely tiny pins? I don't know if you're familiar with them, but they're essentially breakout boards, so I guess they might not work for what you're talki...
by jaem
Mon Nov 12, 2007 4:14 am
Forum: General Discussion
Topic: Electronics Beginner
Replies: 14
Views: 7529

You'll also want two other things when salvaging parts: 1. A solder popper (desoldering pump) and 2. Desoldering wick I agree that the wick is essential, although I've had bad times with budget solder-suckers. I'd personally recommend a desoldering iron. You can get them in Canadian Radioshacks (e....
by jaem
Fri Nov 09, 2007 1:31 pm
Forum: General Discussion
Topic: High-current output batteries for secondary power supply
Replies: 5
Views: 2896

Zotdoc -- That's not really a viable solution. I had a really hard time finding any case that would fit my Palm (Zire 72) in my area. I finally found one that fit from HP for a good deal ($20 for a nice leather one), and I can't return it now. Also, I'm using Linux on it, so I'm quite sure that it w...
by jaem
Fri Nov 09, 2007 12:36 am
Forum: Robotics
Topic: ROBO ARM FOR MY PC
Replies: 7
Views: 8068

Can you give us a bit more info? Is this purely decorative, or do the arms serve a function while the computer is on? You could use servomotors, but they can be a bit pricey. Sites like http://parallax.com sell them, although if you're in the US and don't want to pay shipping, I've seen servos for t...
by jaem
Fri Nov 09, 2007 12:19 am
Forum: General Discussion
Topic: CDROM LASER question
Replies: 4
Views: 2817

I asked my optometrist about this when I last went in for an eye test. I was initially wondering whether UV LEDs were harmful to your vision, because I accidentally flashed someone with a cheapo one from my modded flashlight in the dark and he said he couldn't see for a couple of seconds. The optome...
by jaem
Wed Nov 07, 2007 3:44 pm
Forum: General Discussion
Topic: High-current output batteries for secondary power supply
Replies: 5
Views: 2896

...is that all it would actually need? I was under the impression that they wouldn't like me drawing half an amp...
by jaem
Tue Nov 06, 2007 4:51 pm
Forum: General Discussion
Topic: High-current output batteries for secondary power supply
Replies: 5
Views: 2896

High-current output batteries for secondary power supply

This is a continuation of the subject matter discussed here . My Palm's battery lasts a fair while, but one issue is that it has automatic wake-up whenever a button is pressed - and the buttons aren't recessed. Thus, several times a day, I have to check and see if whatever I was carrying brushed my ...
by jaem
Tue Nov 06, 2007 4:39 pm
Forum: General Discussion
Topic: Ghetto Palm charger
Replies: 0
Views: 1877

Ghetto Palm charger

I just wanted to post this, because while it is (in the words of my friend) "as ugly as sin," totally inefficient, horribly easy to break, and violating pretty much every design principle of engineering that there is... it shows what can be done on a budget if you just don't care. (note: I...
by jaem
Tue Nov 06, 2007 3:59 pm
Forum: General Discussion
Topic: High Power Laser Disposal
Replies: 11
Views: 5248

dacflyer wrote:Mmmmm lazers... could be fun for a light show...
are these visable lazers ? how big are they ?
jollyrgr said they were 30mW IR
by jaem
Sun Nov 04, 2007 1:08 pm
Forum: General Discussion
Topic: Tashin TA-306
Replies: 5
Views: 5091

couldn't find anything on my usual datasheet searches/x-refs

What type of IC is it?
by jaem
Fri Nov 02, 2007 5:25 pm
Forum: General Discussion
Topic: Obscure ICs
Replies: 15
Views: 8372

turns out it is apparently just a 74S32, however, TI also replied to my e-mail and said it wasn't in their records anywhere... which still makes me wonder why they would give it a different number.
oh well...
by jaem
Fri Nov 02, 2007 3:26 pm
Forum: General Discussion
Topic: Obscure ICs
Replies: 15
Views: 8372

Internal P/N is possible but lot code is more likely. Means nothing to us but it allows them to trace manufacturing problems back to the wafer if necessary. I guess that could be, but it's interesting that the number is SNxxxxxN - the pre-/suffixes fit with a TI logic chip, but the actual number do...
by jaem
Fri Nov 02, 2007 3:24 pm
Forum: General Discussion
Topic: Obscure ICs
Replies: 15
Views: 8372

well... I phoned TI, and they couldn't officially say anything about it. All you could tell me was that "74S32 is a real part number", but he wouldn't confirm or deny whether this chip was in fact a quad OR, or what the number on top might mean. He basically gave me the runaround. I'll pro...
by jaem
Fri Nov 02, 2007 12:18 am
Forum: General Discussion
Topic: Obscure ICs
Replies: 15
Views: 8372

Thanks Robert, although I had that memorized from last year's electronics courses ;) I didn't think to check the bottom, and seeing as all my TI chips have numbers on their bottoms that are related to the ones on the tops, that's what I figure it must be. I will have to make sure, though, and I'm st...
by jaem
Thu Nov 01, 2007 7:09 pm
Forum: General Discussion
Topic: Obscure ICs
Replies: 15
Views: 8372

jaem, I googled area codes and came up with this: http://www.bennetyee.org/ucsd-pages/area.html 972 is in Texas - listed as Dallas / metro. I believe that would be a toll call :shock: CeaSaR I know it would be long distance - I was wondering if 972 numbers were included in the evil "900 number...