Search found 326 matches

by kheston
Wed Mar 17, 2010 9:15 pm
Forum: Computer Programming
Topic: Web Server on Win98SE?
Replies: 6
Views: 2515

Re: Web Server on Win98SE?

CeaSaR, I'm with desy. Any MS web server product that would run on a Win98se machine will become a spammer's paradise before you know it. Soon thereafter, spam filters will block any calls to your site for fear of downloading a worm. You'd be hosting a slave on a botnet along with your web content t...
by kheston
Tue Mar 16, 2010 4:18 pm
Forum: General Discussion
Topic: Town flood, power outage, backup power ideas?
Replies: 21
Views: 2880

Re: Town flood, power outage, backup power ideas?

MrAl, sghioto's suggestion in hard to beat. Those Honda EU series gennys are whisper quiet and under $1k. You should certainly consider one as an option. I've run a borrowed Honda EU1000i for a week (12hrs a day) on 10 gallons of gas. Here's my system break down: 8 12v AGM deep-cycle batteries - $12...
by kheston
Tue Mar 16, 2010 11:07 am
Forum: General Discussion
Topic: Town flood, power outage, backup power ideas?
Replies: 21
Views: 2880

Re: Town flood, power outage, backup power ideas?

MrAl, The power projects you've helped me with go to provide electricity for our place in the Sierras where PG&E hasn't installed power poles. Because I'm worried about theft, I've built a trailer that carries my 8 group 31 12v batteries back and forth between our house here in the SF Bay and the mo...
by kheston
Sun Mar 07, 2010 5:30 pm
Forum: Computer Programming
Topic: Sorting Excel 203
Replies: 6
Views: 2744

Re: Sorting Excel 203

Josey, Not sure if it's exactly the answer you want, but I often run into situations where I need to establish a row sort order in Excel. In one of your columns, place the number 1 in row 1. In row 2 of the same column, type =1+ and click on the cell you placed the number 1 in. Starting with the cel...
by kheston
Sat Feb 27, 2010 7:46 pm
Forum: General Discussion
Topic: is the gate open or closed
Replies: 18
Views: 2475

Re: is the gate open or closed

Anything with a transmitter would be relatively power-hungry. If my math is right, the device sambuchi linked to draws ~60mah, so a 9v battery would only power it for 10 hours. You would therefore need something more substantial and plan to have some charging mechanism in place (solar or two batteri...
by kheston
Fri Feb 26, 2010 9:34 am
Forum: General Discussion
Topic: The bloom of the Bloom fuel-electric cell...
Replies: 10
Views: 1970

Re: The bloom of the Bloom fuel-electric cell...

sofaspud, I found the blog post you linked to interesting. I have similar concerns. While I think it would be pretty nice to bring on-demand power generation closer to where it is needed, until such generators approach the efficiency of those used in utilities' power plants burning the same fuel, su...
by kheston
Wed Feb 24, 2010 8:40 pm
Forum: General Discussion
Topic: Cellular (800Mhz) antennas/boosters?
Replies: 22
Views: 6044

Re: Cellular (800Mhz) antennas/boosters?

Any coax cable recommendations? A bit of Google searching has shown RG8 and LMR400e as options, but I know little about what makes one cable type better than another. I was considering using a 20ft pole initially and perhaps going as high as 100ft (provided I can find a decent tower on Craigslist fo...
by kheston
Thu Jan 28, 2010 9:02 am
Forum: Computer Programming
Topic: What is the best computer virus protection?
Replies: 17
Views: 3382

Re: What is the best computer virus protection?

This thread was started by a spammer. See the link at the end of his post?
by kheston
Fri Jan 22, 2010 3:30 pm
Forum: Computer Programming
Topic: emachines computers
Replies: 7
Views: 1900

Re: emachines computers

I owned an eMachine about 5 years ago for a few weeks. The PC was fine, but their support/warranty strategy was terrible. When the CDRom stopped working, their only solution was to ask me to ship the entire machine (at my own expense) to them for service with a 3-week turnaround. When I asked them t...
by kheston
Tue Jan 19, 2010 6:37 pm
Forum: Computer Programming
Topic: Dead DOS computer
Replies: 10
Views: 1837

Re: Dead DOS computer

A client had a custom program running in DOS for years until the motherboard quit. I was asked to write a Windows version of the program, but I needed to see how the old DOS version worked. Instead of trying to make DOS work with modern hardware, I used the free version of VMware. It worked perfectl...
by kheston
Wed Jan 06, 2010 9:08 pm
Forum: Computer Programming
Topic: NET vs. PHP
Replies: 2
Views: 1287

Re: NET vs. PHP

In a quick search, I could only find articles that lean one way or the other. ASP vs. PHP is quite the debate, almost religious. When on a Windows box, I use .Net. On Linux servers, I use PHP. In rare case where it's available, I use a Java web framework. Use what you're comfortable with (or curious...
by kheston
Thu Dec 31, 2009 10:34 pm
Forum: General Discussion
Topic: How hackable is this Slice machine ?
Replies: 4
Views: 599

Re: How hackable is this Slice machine ?

A close friend has a similar device she uses for scrapbooking. I has a small Exacta-like blade that does the cutting. Can you cut traces with an Exacta knife?
by kheston
Sun Dec 27, 2009 9:13 pm
Forum: General Discussion
Topic: DC Genset - I've gone and over-complicated things
Replies: 9
Views: 1613

Re: DC Genset - I've gone and over-complicated things

Wow, that's really slick, MrAl! It's ok to add a 1N5401 to shunt Q2.E to ground to protect Q2, correct? Standard caps around the 78L05 as well? Now comes the understanding-it-part. Here goes... If I'm not mistaken, the max charge side is a standard linear VR where R6==r2 and R5==r1 (in Vref = Vin*(1...
by kheston
Sun Dec 27, 2009 5:53 pm
Forum: General Discussion
Topic: DC Genset - I've gone and over-complicated things
Replies: 9
Views: 1613

Re: DC Genset - I've gone and over-complicated things

MrAl, I bought the Bi-directional current sensors on purpose. At some point, I'd like to monitor the drain current on the batteries individually to make performance assessments. I don't mind the reduced granularity. It would be fine for the alternator outputs to max when the load was large enough, s...
by kheston
Sun Dec 27, 2009 11:42 am
Forum: General Discussion
Topic: DC Genset - I've gone and over-complicated things
Replies: 9
Views: 1613

Re: DC Genset - I've gone and over-complicated things

MrAl, 4) Yes, the only load on the system will be via the inverter (48v output). I don't foresee using the individual batteries to power anything other than the circuit we're looking at in this thread. 5) the AD5204 is a DIP IC that fit the bill. I didn't look for a 2ch. If I move to surface mount, ...