luvdunhill

I think so to. Plus it's going to be awesome to get some of these in circulation at meets and what not

ok, so next step is to estimate the number of channels that will be built so I can get enough parts for everyone. Also, if you are a DIYer, indicate how many channels you'd be willing to build. I think we can accommodate everyone in this thread, including the non-DIYers. Just quote the following list and add your info: name - # channels willing/able to build - # channels wanted to have and hold luvdunhill - 8 - 4

according to the docs max panel is 11mm. or 0.4331" or 7/16" or 6.83554293

I bought the perforated aluminum from onlinemetals. I'm very happy with it! yeah, about 3/16". 4mm to be exact. The recess is 12" x 4.875" wide. I dropped the wood in the mail this morning and pickup was at noon, so I'm guessing you'll see it tomorrow. Also, remember the back of the wood will be right up against some hot heat sinks .. would it be best so space it out a tiny bit so it's not touching?

I'm thinking about finding a bunch of 2SK1530/2SJ201 pairs. If you have a good source, I'd love to hear about it

Told you this DannyB guy was a spammer.... nobody listened to me...

Looks like we need a "How are you feeling today" thread

yeah, we had a similar experience with our youngest recently. Came down the croup and we tried to hold off as long as possible without giving steroids to the little one... but off and on three nights in the bathroom with the shower steam kinda gets old ... not exactly С лёгким паром!

yes. One for case the wall warts and the other case will have an Altoids tin can strapped to the bottom with cable ties with Black Gates on the outputs.

until you realize she's allergic that can be exciting.

I think we know where this is going next... *definitely* needs to visit the Dr. for a special treatment!

I think I may have a schematic somewhere.. I'll check tonite.

huh? no, definitely wire edm.

I haven't found a place that will do custom extrusions for less than a 1 ton order. I have a feeling that EDM is more accurate than laser cut, as it goes down to ~5um tolerances. Perhaps not needed here, but certainly doesn't hurt. I don't see any reason Kevin you should have to pay for them if this deal gets off the ground, the only issue is the fact that I have limited quantities Of course, a modified Dynafet board would be super cool, but it seems like it would be too hard to do... Specs attached just in case though!

Yes, via edm. Wire cut aluminum then anodized with appropriate tolerances to leave 0.1mm gap for silver epoxy. One side is missing fins so two can be coupled together for a complementary quad / differential input pair (my use would be BT clone). Handy huh? 0.1mm wasn't chosen at random. Thinner than that adhesion is lost, thicker and there is higher thermal resistance. Another interesting point is you can run V grade devices at full dissipation without any drift. Yeah Kevin, I had a problem with this and that circuit I showed you.

So, gathering interest for collaboration on KG's Dynafet. The way this would work is quite simple. There would be a group buy on parts as well as the boards. The parts would be supplied by myself and we'd work a deal out for people contributing in the matching efforts and various aspects of specing and acquiring parts. The boards would be the Hitachi version with external heat sinks, using KG's latest board files. Front end would be constructed from devices matched from a pool of 500 2SJ74BL and 500 2SK170BL matched to 20uA accuracy. All devices were pulled from original Toshiba packaging. Actually matched to 10uA with +/- 20uA measurement uncertainty added on top. The will be bonded together using couplers made on a CNC wire-cut machine. See attachment. I think the performance will exceed the single substrate versions due to the better matching characteristics. I also have 50 pairs of 2SJ79/2SK216 that will be need to be matched as well. These sell for around $10 a pair these days. Mine are all from the same batch code purchased in original Renesas packaging. I'm thinking there would be an upfront deposit of $75 per stereo set ($150 balanced) for the devices and matching efforts and a similar arrangement (probably $40 stereo and $80 balanced) for boards. Group buy participation is requisite on some member here "vouching" for you as well as an agreement that this isn't going to happen overnight and there is a lot of work that needs to be done to do this right. Everyone will have some sort of job to do, as this is really a group effort. So, anyone interested?

DigiPete: Hope you never loose an output device in that amp.. Thos Sanken devices can be impossible to find and the market is ridden with fakes.

probably shouldn't have posted that pic... probably just donated 250 hours of R&D to the new Singlepower power conditioner ... all he needs is a bling chassis..

Just curious, does anyone happen to have a variac I could borrow for a bit? If not, I suppose I could go ghetto...

... and avoid square rooms. I'd take a smaller rectangular room over a larger square room. Well, in fact I did make this trade off in fact with my mg12s.

http://www.borbelyaudio.com/pics/HB_DAC1704_V1_01b.pdf DI 8M DAC

I'll bow to whatever Pars finds when he works them. Just use a big enough tip, 50W, and lead solder, and you'll have a good looking joint after heating it up for 10 seconds or so.

they require the liberal use of flux

ok, well, I'd be willing to get some more Dynafet boards made, regardless of what happens here. Perhaps I'd do something similar to what I did with the Pass Pearl build thread here in the DIY section. Stay tuned.

maybe, maybe not Anyways, the amp is definitely doable and I agree with Spritzer, this is one of the reasons it would be the perfect choice.