luvdunhill

I'd love to give this a go.

yup, balanced outputs.. and more gain then you'll ever need Also, in this same class, the Klyne Model 7PX3.5/B has balanced outputs.

I think the manual for the Ayre P-5xe shows how they recommend to build the XLR to RCA connectors, if I'm understanding what you plan correctly. If not, then please ignore.

If this is the case, make those XLR cables as long as you'd like. Especially if you are using solid state stuff. What about the Aqvox? It's pretty decent sounding, IMHO. Also, the Ayre P-5xe, depending on the price these days.

As close as possible, not only for noise reasons, but the longer cable will effect the frequency response (ahem). it's quite easy to calculate if you know all the variables. I'd need to know: inductance of the cartridge (sometimes given by the manufacturer) coil resistance of cartridge (again, given by manufacturer) resistance of cable (per foot, or for 0.5m and 7' say) capacitance of cable input resistance of phono stage input capacitance of phono stage It might be hard to gather this data, but if so, you can easily model the difference and even calculate an optimal loading with the longer cable. I could help you, or you could read and use the calculators here: http://www.hagtech.com/loading.html

17 foot cable is just asking for trouble on many fronts. It would be much better to run the amplified signal that distance, or consider a wall mount shelf at the front of your system.

I'd love to join a forum about (looks around for nate) fora.

that could be exciting

He might try and sell one of my kids while I'm there, who knows Thanks for volunteering someone else though, I really appreciate the thought and effort

The TO-220 on the left is a regulator, you can see from the side shot. From the top shot you can see they are all National devices, hence my deduction. The soic devices are probably relay drivers, that would be my guess at least. It could be a double sided PCB I suppose.

Hey, probably not the best place for this, but what the heck. I'm lazy. Anyone know of good accommodations (cheap, free, etc.) in the SF area for a family of four? Some sort of kitchenette would be nice

The question I have is are all those TO-220 devices regulators? Sure looks like it. That means this is basically a chip amp...

This graph is worthless without the compliment devices, but ...

excellent! So, on that note, despite the fact I'm not finished with the n-ch MOSFETs, I feel that I will in fact have a few matched devices left over from my contribution to the MOSFET order after I take the devices out for another project. After a lot of thinking, I will only be offering them as matched pairs, not quads per the rest of the group buy. Also, I'd like to sell the rest of the devices with them, excluding the JFETs (unless they don't sell and I get really, really bored). I'll make sure to order enough boards to cover these possible builds as well. I'm tempted to ask the same price as the group buy ($60 a board), despite the reduction in parts, just due to the unforeseen additional effort with the MOSFETs, and the fact that it's pretty hard to get decently matched pairs without buying two times the needed devices, so I feel that the market will bare this price. I plan on posting a graph for the p-ch parts sometime today and you'll see what I mean I want people to realize that these aren't just sub-par matches, but in fact are even better complimentary matches than the other sets, just not available in quads, which really makes this possible as they are drawn from the "tail" of the distribution. Please PM me if interested.

Looser101: not that it matters all that much, but is your order for 3 stereo amps, or one balanced and one stereo? Just trying group some of the harder to group transistors tonite and this would be marginally helpful

I think it can, depending on what you mean by "pass". If you're willing to hack the player a bit, I think it can be done. Search around at DiyA and see what model Russ and Brian hacked to do this.

final size

no, it's not black. I wish... I got it from onlinemetals, which admittedly doesn't have the best pricing available (Pierce Metals for example is usually cheaper on other items) but I needed a few other things as well...

Doug, for your original question, how about a 1000V 10A 400W DMOS device? http://ixdev.ixys.com/DataSheet/DS99529A(IXTH-TT10N100D).pdf

I wouldn't worry about those numbers. All that is important is that they are the same per quad.

they're selling fake ramen?

ok, thanks Maybe Chris needs to see if he has enough heater and real estate for a pentode CCS then!

$200 worth of perforated aluminum. 3003-H14 0.125" Thick with 0.125" diameter holes and 0.1875" stagger... 40% open. Seems to be real nice stuff after handling a sample, just kinda pricey.

ok, I apologize, my facts are wrong, but the question still exists

cool! So, since you have your own thread, Pars mentioned something about you saying that replacing a plate resistor in his Counterpoint preamp with a DMOS type CCS was a bad idea. I was wondering, why would something like this ever be a bad idea? I don't really know the circuit, but the question was asked in the general and this specific example was brought up as a counterpoint (heh) to why replacing a plate resistor with a solid state CCS wouldn't always be a good idea...