kevin gilmore

Thanks i just sent him an email. This is what happens when i try to help people for nothing..

$375... I thought $85 for just the connector was a good deal. Maybe the person who wants it may change their mind.

The kt77's will definitely fit horizontally. Sure looks like they will fit vertically too, otherwise just leave the top off. spritzer needs to punch a hole in his rack, and put in a quiet fan to push air from the bottom thru the top of the thing. the reason the T2 may be a little bit light in the bass could be that the tubes are only running at 5 watts each, and i definitely would not turn up the power any higher in that chassis. The BHSE runs the tubes at about 10 watts. The diy T2 will have lots more heatsink and it will be easy to dial up the power.

So i've been dealing with fischerusa for the last 6 weeks. i agreed to make a he60 to he90 plug so that one person can use his he60's on a hev90. 5 weeks later after promising the male connector in 1 week or less, i'm back on the waiting list from the factory, 12 weeks for one fucking connector. And two of the sales people i've been dealing with in that time have "left the company" and the purchase order keeps getting dumped in the bit bucket. What a way to run a company. Justin: where is my BHSE... estimate a 4 week time frame including the year please.

62C == 144F yes hot enough to cook eggs Even the krell does not get that hot. listen to some great music and cook dinner at the same time. I did not get the red JJ coating on those things either.

Time for a bigger equipment rack. Might as well get it now, you will need it later anyway. The power supply is quite a dense brick at 35 lbs.

The problem with mikhail's tube sockets is that the plating on the metal pins comes off real easy, then all you are left with is regular steel which gets rust on it and the contact quality degrades very fast. There are plenty of other sockets just like that that are made better. Everything said about teflon is true, but if you use the solder mount sockets and have everything perfectly aligned, nothing ever moves. In fact if i could get the tulip pins by themselves i would not even need the rest of the socket. Except then you have to pay real attention to the way the octal tube gets inserted.

I don't know what you paid, and don't really want to know, but you got a real good deal. a REAL good deal. Obviously the next step is to build the same thing with 6C33's running at full power. Then after that i have some very large and low voltage EIMAC's that really like to run at a few amperes...

If bigir finds me another T2 floating around for sale from a reputable dealer/person i would buy it just to add it to the collection of other things. I can do a better job 25 years later. But justin class chassis's are a whole bunch of work. At least i'm very now well familiar with the 3D milling machines and the software, so i can make a chassis with all sorts of pretty holes pretty easily And even go for completely custom one piece heatsinks. Then ship the stuff out for anodizing. Should cost about $1k for the chassis. Assuming the labor is free. The arlon circuit board makes no difference as the lower capacitance is definitely not necessary, and it probably would have to be much thicker to hold off the 1kv floating around. This is pretty close now after about 18 hours of work. http://gilmore.chem.northwestern.edu/staxt2rev0.bmp at least all the obvious errors are gone, and the ground plane has about 95% coverage once i add it.

3 days ! So if i'm an amateur what do you call mikhail...

The 6dj8's in the back next to the pot are the cascoded input stage.

I have a pair of Omega1's and i did try it. Very nice. I do have the BHSE prototype, and compared with that for (well all night and then some) Very close call, but the BHSE is ever so slightly better (no humm) But our version of the T2 is going to be better yet. (dc filaments) (fully regulated and tracking power supply) current board... http://gilmore.chem.northwestern.edu/staxt2rev0stereoproto1.bmp If you can't generate schematics from that in 15 minutes or less, you don't deserve to be messing with this.

more of the same http://gilmore.chem.northwestern.edu/staxt2-10.jpg http://gilmore.chem.northwestern.edu/staxt2-11.jpg http://gilmore.chem.northwestern.edu/staxt2-12.jpg http://gilmore.chem.northwestern.edu/staxt2-13.jpg http://gilmore.chem.northwestern.edu/staxt2-14.jpg http://gilmore.chem.northwestern.edu/staxt2-15.jpg http://gilmore.chem.northwestern.edu/staxt2-16.jpg http://gilmore.chem.northwestern.edu/staxt2-17.jpg http://gilmore.chem.northwestern.edu/staxt2-18.jpg http://gilmore.chem.northwestern.edu/staxt2-19.jpg The interconnect cable is just a bunch of regular wire in a bundle about .75 inches thick, permanently connected at the amp end. For those that don't recognize old stuff, the power supply connector is the same connector used on 14 inch SMD hard drives from years past. On the bottom pictures you can see the cable soldered to here, there and everywhere.

in high res bitmap form suitable for error checking http://gilmore.chem.northwestern.edu/staxt2rev0stereoproto1.bmp

Yep that is what you want. If you can get 2 of them, or 4 for the sr-007t and don't mind running without the covers, then give it a whirl. I still think it is a bad idea. 700 volts for a 6sn7 ??? Not a good thing.

Electrically maybe. Physically NOT A CHANCE. You would need an octal to 9 pin adapter. (the reverse of what you think) You would have to punch holes in the top of the chassis... Transformer will likely not have enough filament power.

I'd pay to watch mikhail build a point to point T2. It would be a work of art. I mean what else would you call it?

hydrogen thyratrons used as synchronous rectifiers are even better. Besides which they really light up purty. Of course you can substitute parts. But where is the fun in that. It may turn out that frank is using a much higher B+ (like 800 to 1200 volts) in which case the mercury rectifiers will actually be necessary. Pretty sure i heard that the electrostatic amp had a 1500 volt B+. In which case you do have to pay attention when you build stuff like this.

Actually the thing is that mercury rectifiers are a much stiffer and lower impedance device with much less voltage across them. That is why you use them. Its not the same thing. Otherwise you might as well use sand for the rectifiers...

I'll add it to the list of things to make circuit boards for... As soon as the schematic shows up. Really this is going to be way simple..... Compared to the T2.

money sent.

Where's mine. It will be a perfect match to what just showed up. Pictures later today

1kw of heat in the summer

More speakers than you might think. Its not about absolute power its about the ability to handle transients without clipping. 20 or more db of transients. And wilson X3's definitely need that kind of power. Although at 8 ohms its only 1kw per channel. Last price i saw was $160k per stereo pair.

You obviously need a pair of the krell master reference amps. For a combined weight of about 700 lbs for a stereo unit.