kevin gilmore

in progress

so yesterday this showed up quoting alex... "In a nutshell, the Liquid Carbon is a fully-discrete, fully-balanced, transportable solid-state headphone amplifier that is capable of driving all but the most demanding of headphones - delivering satisfying levels and offering superb driver control for exceptional detail and linearity." lets run that thru fact check for a second. yep... "Liar Liar Pants on Fire" fully balanced? nope, not in the way that any truly differential amplifier would be. (like any of the super symmetry variants) and absolutely no common mode rejection. fully-discrete? nope not really, see the single ended to balanced converter in the schematic below http://gilmore.chem.northwestern.edu/lc.pdf so much fail in one package... can the stax mafia do better, you betcha. board in progress now, will run up to +/-24V and bolt to a heatsink. So say a liquid gold clone for about $300 in parts. people, why do you buy poorly built crap like this. Buy Schiit, or Audio-GD or many other high quality brands for a lot less money.

well at least the chassis don't rust anymore.

It does give you an indication of how grossly overpriced the cavalli gear is if you can get a 40% discount.

there had better be a chassis to chassis connect between the two of those, otherwise you are in for a surprise!

a complete wood set of male and female connectors. Going to sound SO much better... The people over there would eat it up. Say $1500 for a pair of connectors. Then upgrade to pure silver pins (doing the same to the tulip females is going to be a bear)

sure you can. but not at room temperature I have 2 x cryoprobes that run at 25K. 40 to 60db of gain noise figure less than .3db

I should never have told birgir what I was planning on doing to a large chunk of .999 silver and forget about the amplifier, show me any measurement system (audio precision, etc) that can actually measure -170db levels, it does not exist. and an amplifier with 60db of gain has to have at a minimum a specific amount of Johnson noise which is at least 50db above those levels, and that's being kind.

actually a very hard hardwood like ebony, or blackwood, maybe rosewood, that kind of thing would work just fine and have low capacitance and high breakdown voltages. (goes off to find suitable piece of wood to stick into the mill using existing program)

maybe time to do a full power regenerator circuit.

Are the reference chips 10v ? looks like they may be 5v

beryllium dust is also massively toxic. i have a 6 inch cube of the stuff i was going to make a knob out of, and was told in no uncertain terms that i could not use my favorite equipment to do that.

you cannot use a center tapped transformer with the kgbh power supply, you need 2 seperate high voltage windings

That is ok

putting it in a metal box won't hurt the transformer. unless you use a metal post that goes thru the center of the transformer (torroids or racetrack transformers) in which case there is one very low impedance single turn short.

http://www.head-fi.org/t/677809/the-stax-thread-iii/9015#post_12639570 i would say that never again will turn into about a week edit: looks like 4 hours

so what will happen when astroboy decides he has to have a BH with the emission labs tubes, or even much more expensive a T2 with emission lab tubes. There is no reason to defend my amplifiers. For people with a brain, they defend themselves quite well.

only if you deliberately short out the 5M resistor on the power supply bias board...

i thought canada was about to become the 51st state

he is just the idiot of the month. trouble is that he has been an idiot for more than a month.

What part numbers are on q17 and q18 should be something like this to hard to read the real values, so all the R# and values are clearly wrong. dualtube.PDF

The green wires are in the wrong place, and the 200 ohm resistors should be replaced by 100 ohms

lt1021 should be 10v

this is why testing the resistors is easier than figuring out why it does not work later.