Re: The Future of the Desktop PC
Same thing here, they won't go down that quickly. Well.... I guess compact (or 'slim') desktops might have a chance. Integration has come a long way and fast external storage is no longer a problem (neither is cheap network storage which also doubles as media server)
Besides, the entire gaming market is too big to be abandoned just like that, and laptops are... laptops.
kikkoman
Badcaps Veteran
Last Activity: 01-08-2021, 01:07 PM
Joined: 07-13-2007
Location: Heart of Darkness
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Re: May I know the Volts And Farad of this Tantalum Caps?
huh. I've never seen this kind of marking.
I'd guess 22ยต, 35V but it's only a guess.
Do you have any means of measuring the capacitance?Leave a comment:
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Re: Diagnosis/Anaysis cards any good?
I wonder if manufacturers still stick to the port 80 standard (if they ever did).
The only useful thing in that direction I ever had was an Epox Socket A mobo that had the thing integrated, with a small 7-segment display. 8RDA3I+ I think it was.
It was helpful a few times.
MSI had something similar where the combination of 4 LEDS on a bracket would light up with the boot sequence.
The Epox was way better IMO. I put in a cheap port80 card for comparison - useless. Garbage.
Too bad they went down, they made good...Leave a comment:
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Re: Acronym U: what for?
On the silkscreen or on the parts themselves?
If on the silkscreen, it usually means it's [I]some[/I] sort of IC (anything up from a simple voltage regulator, so anything that's not a discrete part.).
If on the parts, that is much trickier. What's the footprint and silkscreen marking?Re: Acronym U: what for?
On the silkscreen or on the parts themselves?
If on the silkscreen, it usually means it's [I]some[/I] sort of IC (anything up from a simple voltage regulator, so anything that's not a discrete part.).
Leave a comment:
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Re: Looking to build a somewhat simple variable voltage DC PS
Looking good!
Remember that you can use one or several pass transistor(s) to beef up that regulator. I don't see why it shouldn't work with an LM396.
[url]https://www.google.com/search?q=lm317+pass+transistor&hl=en&safe=off&client=firefox-a&hs=Qbh&tbo=d&rls=org.mozilla:en-GB:official&source=lnms&tbm=isch&sa=X&ei=jHEfUbHpGIzP4QSXj4DwDQ&ved=0CAoQ_AUoAQ&biw=1280&bih=872[/url]
Any plans on adding current limiting? It should make that...Last edited by kikkoman; 02-16-2013, 05:59 AM.Leave a comment:
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Re: Constant current LED dimming
hey, how about a LM317T in CC mode?
Its upper limit is 40V, so you might drop in a diode in series, but all in all it should work fine with that electronic ballast.Leave a comment:
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Re: More Linksys Driver Horse Puckey
TC, are you sure it's a Ralink?
from what I see it's a Airgonet AGN100 chipset (they were bought out a long time ago) and indeed there's nothing beyond XP drivers.Leave a comment:
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Re: Help ID a sot-23 device
I'd say since they label diodes as D and ICs as U, you probably have got a transistor there. could be a FET too but usually you see BJTs for gen. purposes.
If you can tell if it's on the high or low side (any of its pins @ ground or at Vcc?)
this is the basic idea: [url]http://ikalogic.cluster006.ovh.net/wp-content/uploads/swtch1.jpg[/url]
hope it helps.Re: Help ID a sot-23 device<br /> <...sually you seeLeave a comment:
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Re: Parallel Battery Configurations for mobile phone battery
It can be done.
It is done a lot with large R/C LiPo battery packs. But mind you, these tend to blow up a lot more often than consumer stuff. And they're usually soft-shell LiPos that first puff when they go bad; LiIon cells have steel cases that contain the pressure until they burst.
Those R/C cells, at least the better ones, are matched cells that ideally have identical internal resistance in order to prevent bad things.
not to mention that cell phone battery capacities, especially the cheap...Leave a comment:
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Re: Vox mini 3 amp
bob,
you can order free samples (up to 3 per part IIRC) directly from TI.
i've found their sampling policy to be quite generous, and no shipping charges apply.
(as long as you don't overdo it i suppose.)Leave a comment:
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Re: Vox mini 3 amp
thought so. i saw the back plate too but no ID.
can you you post a basic pinout with some surrounding components maybe?Leave a comment:
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Re: Vox mini 3 amp
bob, is there a FCC ID somewhere on or in the device?Leave a comment:
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Re: Wireless card driver issue
look up the ViD and PID in the device manager, then check the driver .inf file if it's listed there.Leave a comment:
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Re: A possible way to make reflows/reballs last longer?
on a side note, on of the hardware chains over here now sells a UV hardening urethane glue (comes with needle tip and UV lamp). Interesting stuff although it has its downsides e.g. no chemical bonding.Leave a comment:
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Re: A possible way to make reflows/reballs last longer?
squeeze some thin epoxy through a needle under the thing?
it would have to have very low shrinkage, obviously.
no idea what kind the red stuff is they mostly use.
i sooo wish they had good glues (look at DuPont stuff for instance!!!!) at large hardware stores... nope. nothing. i mean the real good nasty chemical stuff.
the average joe must be kept away from such complicated and dangerous things.
arrgh!Leave a comment:
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Re: Pleaaase help with dell bios password
hi!
remove the CMOS battery:
[url]http://support.dell.com/support/edocs/systems/late6410/en/SM/TD_Coin_Batt.htm[/url]
unplug and remove the main battery. let it sit for an hour or so.
BIOS should be reset, you have to readjust time/date and maybe a few minor settings.Re: Pleaaase help with dell bios pas...n battery. letLeave a comment:
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Re: Inductor Core and Copper Losses
wait, what? #26 for 100A peak? no way!
you've got to do it the other way around.
first choose your wire (i'd guess #4 or thicker for that current?!), then you choose the rest.Leave a comment:
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Re: Making my own little speaker system
nice! the MAX9709 works fine so far. it's still a little ugly (FrankenAmp?) but sounds good. i love the Tripath, but there's absolutely nothing wrong with this one.
it doesn't have the one downside of the tripath: operating voltage up to 22V (vs. 14V absolute max).
and it only cost a few bucks (everything came from the parts bin or trash, samples were free)....Leave a comment:
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Re: Schematics General Question
don't despair!
i know, it's mostly these basic things that are the hardest. if it's just as a hobby, 'learning by doing' is the way to go.
here's a tool i can recommend for these little problems (saves a lot of paper):
[url]http://www.electronics2000.co.uk/download.php#assistant[/url]
and eevblog.Re: Schematics General Question<br /...y to go.<br />Leave a comment:
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Re: Schematics General Question
the formula is 1/R(total) = 1/R1 + 1/R2 + ...etcLeave a comment:
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