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Everything posted by aerius
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The DP-2 is spec'd for a 12AU7 on the input according to the manual, but for whatever reason the one at my dealer had a 12BH7. From my rather limited experience it's a better tube than the 12AU7 but it eats more heater current.
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Hmmm...that's odd, the one at my dealer had 12BH7's on the input. Couple other suggestions, though I've only heard one of them. If you have a bit more money you can get the Wright Sound AU-15 which is somewhat similar to the Artemis DP-2 in that it's a transformer coupled P-P 2A3, but it uses different input & driver tubes. This one I've heard and it's darn good, it just gets the hell out of the way and plays music. Which is not to say it can't do detail, soundstage and all the usual audiophile terms, it can, in abundance, but I just don't care since it sounds so good. If you don't have the dough the Mono25W is a good bet, I haven't heard it but I trust George Wright to know what he's doing with audio design. I'd be surprised if it sounded anything less than excellent.
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Singlepower Square Wave w/ DAC internal pics
aerius replied to Asr's topic in Headphone Amplification
And I'll pee rainbows and fart bunnies out my ass. -
Singlepower Square Wave w/ DAC internal pics
aerius replied to Asr's topic in Headphone Amplification
Then we get crappy circuit design, crappy build quality, crappy customer service, and amps that burn down houses and blow up real good. Sounds like a great idea! -
Two plane tickets to Kamloops.
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Graduation Day - The Tubelab Simple SE project begins...
aerius replied to n_maher's topic in Do It Yourself
For a rough approximation, go to Home Depot and get a 300W halogen tube along with a lamp to put it in. Plug it in, turn it on, and stare at it. -
Singlepower Square Wave w/ DAC internal pics
aerius replied to Asr's topic in Headphone Amplification
Great. It's nice to know that he's taking a page out of the RSA how-to manual. -
Graduation Day - The Tubelab Simple SE project begins...
aerius replied to n_maher's topic in Do It Yourself
That's a one of kind Electronluv amp. It uses the GM100 tube which is well, pretty darn big. -
Graduation Day - The Tubelab Simple SE project begins...
aerius replied to n_maher's topic in Do It Yourself
You know you want to... -
Because without a preamp you have exactly two volume settings; off, and postjack.
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If it's oscillation then my guess is resistors on the grid pins. For the 5687 this would mean resistors from a few hundred to maybe a few thousand ohms on pins 2 & 7.
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Yup, you get more room for better parts and layout, and get the transformer far away so it doesn't make things hum. On the downside it brings up issues with grounding and noise pickup which aren't trivial to solve, and which frankly few audio designers know how to solve.
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Good isn't necessarily popular, and popular ain't necessarily good. A lot of the time, doing what is good & right will piss off a lot of people and make you look like an asshole, and too many people just don't have what it takes to do it and live with it. In the end, someone just has to step up and do the right thing even if 90% of the people whine & cry about it, it's really that simple. Not exactly easy, but it's simple.
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By default. My room acoustics suck so there's no point to getting speakers, so the only other way of getting decent sound is through headphones.
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Had a rather depressing phone call from one of my friends in the US. Him: the housing bill passed the Senate yesterday Me: I heard Him: we're fucked, we are all fucked. Me: you still have your Russian citizenship don't you? Him: yeah, it's something to think about in the future, I'll see... To summarize, the Treasury has given Freddie Mac & Fannie Mae an unlimited line of credit, and the national debt limit has been bumped up by $800 billion. We're looking at the start of the largest wealth transfer in recorded history, as the middle class & poor have their money sucked up into the coffers of JP Morgan-Chase, Bank of America, and the rest of the Wall Street boys.
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I average around 2700 calories a day and as usual, I've dropped a couple pounds this summer. Some days, like today when I'm just sitting on my ass I get around 2400-2500 calories, on days when I'm out biking I'm over 3000.
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Relative Importance of Power Cable/Power Conditioner?
aerius replied to barmar46's topic in Audio Accessories
Borrow an oscilloscope and stick the probes into the socket. If it looks like this instead of a nice smooth sine wave, your power is bad. -
Robert Plant & Alison Krauss. Alison is cute, really cute, and Plant looked like a vagrant off the streets.
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There's some decent tube options with the TTVJ amp so I wouldn't be too concerned with reports of brightness or lack of involvement. The tube that's going to make most of the difference in sound is the 7N7, so if you want a fuller sound you could grab a couple of the grey glass National Union tubes.
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Organized my trading accounts to make sure I'm ready for some frenzied trading in the next few days. Tuned up my bicycles, took a nap, made sure my financial news feeds are all working good.
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Pretty much every politician in DC is bought off and blackmailed by various business and special interest groups. If you expect them to do something for the benefit of the people you'll be sorely disappointed every single time, unless of course it has greater benefits for their lobby groups. The US government system is fundamentally broken, and this will not change until the people wake the fuck up and have a revolution.
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Dealing with family members with bipolar disorder.
aerius replied to Thelonious Monk's topic in Off Topic
I'm not a psychologist*, but it sounds like you need a hug, from your mom. *I only took one psych course in university -
Dealing with family members with bipolar disorder.
aerius replied to Thelonious Monk's topic in Off Topic
I'm not a doctor, but I've heard that kicking them in the groin has positive results. -
The big question is which Hossa shows up for the Redwings. With the exception of this past season, he usually stinks it up bigtime in the postseason.
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The original "profit price" of shale oil was $5 a barrel. Then it was 10, then 15, then 20, then 30, 40, 60, 80, then 100. The technology never came even when the price of oil blew past the "profit price" of shale oil.