n_maher

I'm confused, what do you mean by booting into either OS exclusively? I thought that once the partition was installed that in order to select the alternate OS all I had to do was boot and hold the option key? At least that's the way the Boot Camp install instructions read. And this would be one of those things were I'd use OS X 99% of the time, Windows 1%.

So I've got enough free space on my MacBook that I'd like to have a go at running Windows on it, just for kicks. So is there any reason not to use boot camp? i.e. is there a better way? With the single largest caveat being that I don't want to have to wipe the drive and reinstall both OS's.

Nugget Audio approves of this setup.

Errr, emmm, Pete Millett might belong on that list...

If that term (14A) is supposed to describe the external power supply only I don't see how it could be considered 14 amp. As it is wired it's a 6.3V/8A power supply, maybe he's counting something inside the chassis as well?

I'm glad you got through, I heard there was quite the snafu last night when they tried to open up the first round of ordering.

Ahhh I see now, I missed the bridge on the back panel. Does the .15ohm serve to help drop some of the excess voltage he must be having to deal with after the rectifier?

Kevin, Are you sure that he's running DC filaments? I figured the rectifier and filter stages were for B+ and that he'd just be running AC filaments because of the current required even for the 6AS7. And if that is a DC filament supply on the left side of the pcb what do you think he's doing with B+? Just lots of filter stages?

I'd put the over under on this pair at $2000.

Thanks for that, even if it's really not good news. I'm hoping they are conservatively rated. I would say that he misspoke in this case. Even if he's still running the 6SN7 heater off of the original, chassis mounted trafo you still don't have anywhere near the current capacity that you need for the 6528s. That's ignoring the previously mentioned heat issue as well.

I'd say that those are different enough that it's not exactly a fair comparison. The Zana is larger, and at least has some ventilation at the base of those tubes. Does the Extreme have any? I'd respectfully ask that you go back and look at the pictures and notice that the trafo in the outboard supply is a 12.6V/4A - 6.3/8A unit. You and I both know that this is not the HV supply. Mikhail may have built other Extremes where he's moved the HV out of the main chassis (that sounds like what he told me at Canjam) but that is clearly not the case here. I'm guessing that this Extreme didn't start life as a Platinum and therefore doesn't have the Plitron trafo, but I'm guessing there. The 5998 is my personal favorite in this type of amp, but the right 6AS7G sounds pretty darn good for $10 tube. The 7236 can also be good and not break the bank as well.

I'm not defending Kevin, he's perfectly capable of doing that himself if he feels it's neccessary. I'm saying that individuals with either a) insufficient technical ability to fully comprehend the scenario (myself included) or no further first hand information should just be quiet for now. Your post, saying you talked to Mikhail is worthless. So, like I said, I don't really care to hear from anyone about this till there's some first hand, picture documented evidence to go along with it. Get it? You must often find yourself uncomfortable while browsing Head-Fi, no?

Honestly I'd be pretty concerned about running 6528 tubes w/ their 5A heaters in the Extreme, regardless of power supply. The amount of heat strikes me as borderline unhealthy as it is. I know Vicki does it pretty regularly and should I ever find myself in Florida again you can bet I'll be cracking open her amp to check for signs of heat stress on some of those components. Minor tangent - does anyone know what the operating temp range for BG's is? I've never worked with their HV caps and can't find a pic on the web that shows the label clearly enough to show it.

How about we just wait for Kevin to get the amp and take some measurements and then post up. Or do you have a big boner for Kevin and feel the need to keep posting the same thing on multiple sites?

SiK had a line out dock long before ALO was buying camo hats. I had to point this out one time when he was defending his ingenuity a little too vehemently. He countered that his was the first dedicated LOD that didn't have the firewire port on it... oh, so yours is less functional and therefore the more noteworthy...

Based on limited research and advice from others I don't think the top of the line Freq's are very desirable. Word is that they're simply too sensitive. If/when I sell my stat setup I'll finally be ordering a pair of The Freq of Natures.

Seriously, did you not read Dan's last post? We Don't Care Fat, skinny, or otherwise.

Your sarcasm detector is broken. She hasn't been bullied by anyone here as far as I know and don't know why she's claiming to have been. She sent me a PM in response to my question, that's as much as I know. If she got bullied by anyone I suspect it might have been at Head-Fi and even then bullied is probably the wrong word. She is working on a commercial venture and attempted to position her and her company by pseudo-innocent posts in several sub-forums at Head-Fi when she's been telling people for a while about what she was working on. What did she expect? She has only herself to blame for her venture becoming public. The only secret kept secret is the one you don't talk about with anyone.

Feel free to PM grawk or I with the details. Bullying of any kind is not acceptable. Well, unless it's aerius.

Yeah, WTF? I thought I was pretty nice about it actually. \

You sure you have that right? Careful now, remember what I said, think before you post. We've been nice so far, well, mostly.

Someone is also going to have to explain to me the logic of having Black Gates in the power supply and on the cathodes of the 6SN7 but not having them for the output coupling caps. Also, the unbypassed output caps (which I believe are C4 and C104) seems kind of weird to me too.

I know you said you didn't want used, but I'd suggest trying to find a deal on a pair of ER4Ps or see if you can't find someone selling some IM716s.

Do you guys/gals refer to yourselves as professional engineers, or just software engineers (or other nonsense). To me a PE is a PE, which means you're licensed and registered with the appropriate board. But there are lots of jobs that carry an "engineer" title that operate in a gray area. -=she=- is referring to herself and her friends as professional engineers which take it to another level in my book. In some states unfounded claims like that can land you in a lot of hot water.