dsavitsk

For most purposes, it doesn't matter. By the time you use one up, which is realistically at least several years, you'll be able to get a new one that is much larger and much cheaper, and probably faster.

The deals seemed to dry up as the day went on. I picked up a 256 for my X201, but I need the space for running a bunch of VMs.

Newegg is running a 24 hour sale on Crucial M4 SSDs. They are all ~$1/G

You can get a T420 directly from Lenovo with an i3 for under $700 if you are pinching pennies.

I had to do a little bit of server reconfiguration today, so www.ecpaudio.com might be down for a bit. It will come back up as the new DNS settings are updated.

I do not think a single sentence in that opening paragraph is grammatical.

Color pictures from Russia ca 1907-1912 produced by using R, G, and B filters to produce 3 negatives which are then recombined to form a color image. There are lots more at the site.

Happy Birthday!

The sad truth is that one can probably do more good for the world by working as a corporate lawyer and spending 80% of your salary to hire 4 public interest lawyers than by earning 80% less and working in public interest oneself. Lots of backlash against the law school industry lately, and worth reading about before venturing in: http://opinionator.blogs.nytimes.com/2012/02/20/the-bad-news-law-schools/?hp http://www.nytimes.com/2011/11/26/opinion/legal-education-reform.html?_r=1&scp=1&sq=american%20legal%20education%20is%20in%20crisis&st=Search

Have a great one!

Happy Birthday!

There is a new Lundahl ...

$692 for a meter pair of XLR cables? I hope they come with $672 worth of Cardas stock.

I've got piles of extra PTs of various sorts. Send me a PM with what you need. -d

I'd think that a dremmel and a tap would solve all of this. But, if you don't want to go that route, you should send an email to Tomb and see if he is willing to break up a kit. I have inside info that says he probably is.

http://trade.audioasylum.com/ca/ca.html?ca=54873

The K&K is differential. For use as a preamp, you need to use a pair of input transformers (Kevin suggests the LL1690's -- same core as the 1674's, but 1+1:1+1 instead of 1+1:4+4). Due to the input transformers, it will accept balanced or single ended input. If you leave out the IPTs, then you need to feed it with a balanced source. Here is the simplified schematic (no cascodes). However, for a pot, you can use a 2 gang Alps in a differential shunting configuration ("B"). This effectively removes the pot from the signal path making the quality not much of an issue. (The TKDs don't work in this configuration, b/t/w/) Here's some background on the linestage: http://www.raleighau...m/chapter_4.htm

K&K Linestage : Foreplay 3 :: Acura NSX : Honda Accord I think the K&K is probably hard to beat. The only thing I might suggest is that for output duty, I prefer the LL1930's in this topology to the LL1674's. Kevin disagrees with me on this, but while I think the 1674's are unequivocally the best input transformers available, for output duty they sound a little cold to me. The 1930's are slightly warmer, and are slightly more forgiving. And they cost quite a bit less (due to using mu-metal cores instead of amorphous, and not being shielded, which is not necessary in this application). Not sure if Kevin's board will accommodate them, but if not, it is pretty easy to mount them off board.

Makes sense. That's horrible. A LM334 in the tail would work wonders ...

Am I the only one that thinks this can't be right? Maybe it is late, and I am tired, but R12, R13, and R14 don't make any sense, unless R14 is tied to a negative rail and not ground. And were does C7 go? Shouldn't it connect to U3 instead of C5?

I think the best way to learn is to get your hands dirty. It is hard to just read about circuits in the abstract. To that end, Tangent's CMoy article is a pretty good starting point. http://tangentsoft.net/audio/cmoy-tutorial/ This is tube specific, but it was written for teaching people who did not know anything about electronics http://electriciantraining.tpub.com/14178/ And, this thread has links to lots of similar articles: http://www.diyaudio.com/forums/tubes-valves/38278-line-tube-learning-newbies.html Linked from here: http://www.ecpaudio.com/

I emailed you a response. Let me know if it does not get through. Thanks

Maybe Apple could license Beats Audio for the IPod ...

You can easily get regulated 250VDC out of the Triad vpt230 series of toroids from Mouser. These will fit inside the chassis, not get to hot, and not have an issue with stray fields.