LBA 48 bit support supports HD's higher than 137 GB it was LBA that was the problem LBA 48 supports HD's up to 2 petabytes in size we have barley reached...
Jeff, I was just looking around for hard drive controller cards. I could put a card in my E-Machine's PCI slots and since the controller cards on-card bios ...
ehhh one add on, in case your the unlucky one and got it wrong and the Dell only has LBA 24 bit (that's the original LBA) then you can use a software tool to...
I don't generally allow general computer questions here because: 1. There are plenty of other lists out there just for the subject, and 2. It can quickly take...
*Here is some information on LBA that may be of some help. According to this article it is not the 48 bit LBA that is limiting the size of a partition to...
OK, let's close this thread. I started it, I'll close it. Steve, I appreciate your tolerance, I started the thread cause I trust this bunch to send me the...
... The biggest single issue there is whether the BIOS is used once the machine boots. I have no idea if it is or not for any m$ platform, but for me, with...
I need a little help with a small circuit for my digital drum machine. . . Basically I'm using a 'hcf40106be' Hex inverting schmitt trigger IC to replace the...
got another question I looked over some documents on BJT's and mosfets how can a mosfet driven by a transistor be wired I mean if you wanted to replace a...
As your illustration shows, there are six gates in that particular chip. You are using two of them to make your variable clock. Just rig the other two pairs...
... machine. . . ... to replace the system clocks in my drum machine with 'variable' clocks form the 40106 IC (using a CAP and a POT). This will allow me to...
... Junction transistors and MOSFETs are very similar in many respects, so it is important to learn their significant differences if you will be designing...
Ok so I'm trying to understand, if I use a BJT and I hang a voltage with constant current to the base emitter junction it depending on the current in I will...
I have an a electric bike which uses a 36v battery. I installed a headlight and tail light using a LED flashlight that takes 3 AAA batteries or 4.5 volts. I...
I have an a electric bike which uses a 36v battery. I installed a headlight and tail light using a LED flashlight that takes 3 AAA batteries or 4.5 volts. I...
Hi guys, I am starting the actual integration on another project I have been working on. This particular application will use a number of micros (Atmegas)...
The 7805 regulators are rated for about 32 VDC. In actual operation most likely it would be tolerant enough to work. To me a better choice would be an LM317,...
... I think I follow that. If you pass a fixed base emitter current through a transistor, This will produce about a diode forward bias voltage drop and allow...
You will want a switching regulator, so that large amounts of power are not wasted. How much current do the LED's draw? Art...
Art
KY1K@...
3:35 am
47482
Kenny, You can accomplish this with a LM7805. It's a 5 volt regulator. It has three pins. In, ground, and 5v out. So connect the battery positive to the ...
Sorry, I missed the AAA battery comment-which probably means your LED's don't draw more than 100 mA. There is a fellow selling 5 volts switching regulators on...
Art
KY1K@...
3:38 am
47484
http://www.radioshack.com/product/index.jsp?productId=2062599 I'd hook it up and try it. If it gets hot, watch for overheating it by wrapping it with...
... The LM7805 is only rated at 35V input, though. http://www.fairchildsemi.com/ds/LM/LM7805.pdf The LM317 is a 1.2V adjustable regulator, adjustable from 1.2V...
... Except that beta is temperature dependent. Better to use an emitter resistor to swamp changes in Vbe and beta and put a constant voltage on the Base. Or...
... How about different lights? If you connected 3 12v lights in series, your project would be complete. That may be a bit more light than you wanted to...
The 7805 still wastes over 80 percent of the power by dissipating it as heat. And, the maximum input voltage is 35 volts-not good when the batteries on the...
Art
KY1K@...
4:07 am
47489
I have to say this seems like a better approach. LED's are not efficient, although they have the advantage of being cheap and available. For colored lights,...
Art
KY1K@...
4:19 am
47490
John thanks for clearing many things up :D ... I thought the BD674 was a darlington in a discreet package :S but then again I might have pulled the wrong data...
I'd say use a LM317T with a heat sink, rechargables or do what I did. I bought a dollar store front and rear light replaced the board in the red ones with a...
