kevin gilmore

mikhail has 2 different tube dynamic amp circuits. 1) white cathode follower, which is a cathode follower with a boost to the bottom tube from the plate of the top tube. This is everything mikhail makes both unbalanced and balanced, with the exception of... 2) the extreme. which is a standard cathode follower, with really large output tubes into a resistive current sink. craig's zana deux is an upside down extreme. Then you get into multiple filament voltages, multiple plate voltages, capacitors the size of 2 quart juice cans, various different chassis, gold plating, step attenuators, remote controlled attenuators, different tube adapters, and even a piece of the moon extracted from the dark side. plus an infinite selection of expensive coupling, cathode and output capacitors. All of the electrostatic amps are the same amp circuit. (stax srx) Once again, many different kind of gain and output tubes, at least 3 different kinds of power supply (normal, silly, and ludicrous speed), different chassis and even a piece of the moon extraced from the light side. Highly dangerous (if you drop one) mercury rectifiers, neon gas tubes, glass time delay relays. plus a selection of expensive coupling caps. The solid state things are basically abortions. All of ray's tube things are SRPP. We will see what his electrostatic thing is soon

the mpx3 is a WCF. similar to this http://headwize.com/projects/showfile.php?file=cmoy5_prj.htm

Are any of you surprised at the crap that jenna labs does. Many people are happy with their way overpriced crap because they never look inside. $3k for that, you gotta be kidding. Take a look at the APL modified dennon posted here. I have no idea whether or not it really sounds great or not, but that modification job is pure crap. The circuit board held on with one screw, and either hot glue or rtv all over the place. Pure garbage. You should see some of the hack jobs the usa distributor of stax (yamas) has done. Also pure crap. People should start doing this stuff themselves. It can't get any worse.

or an original singlepower toaster... kind of wonder what would happen if nate could get his hands on some of my NC toys... one point off for the gluing of the 2 caps to the chassis in the power supply...

Was waiting to see if someone other than myself knew the right answer... guess not. Its actually 3 resistors added per side. A series 5 meg resistor to the diaphram and 2 x 100 meg resistors from the diaphram to each stator. Takes about 9% off of the bias, so down to about 525 from 580. Works fine with any amp with a stable output voltage of 0 volts dc, otherwise creative things might happen. If you plug those headphones into a real hev90 plug set for 500 volts the bias will now be 10% too low.

I agree. Highly unusual, but thems the facts.

you really want one of these... notice the price http://www.elusivedisc.com/prodinfo.asp?number=EMXAMPANIV

Lets not forget that tyrion is still a lawyer. But he sure has managed to go cold turkey with respect to being a ray samuels fanboy.

thread derailment, sure why not. I thought that the colour of magic movie was absolutely splendid. I got to see it in full high-definition. I want to see more of the disc world stuff turned into more movies.

Not bitter. Not even the slightest bit. Well maybe some bitters as part of passover. They are not my products. They are my designs, and a justin has done an unbelievable job of execution and selection of parts.Trust me you will never get to hear the stuff i have built for myself and you are unlikely to touch the stuff i have built for friends. If you like or hate the GS-X it will make no difference to me. My opinion of you will not change. If you really don't know the difference between a sine wave and a square wave then you really should not be reviewing power products as clearly thd would be meaningless for a square wave. Shows how stupid you really are.

http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&XID=O:scd-xa9000es:dg_ggldf&kw=scd-xa9000es&lp=11039766&productId=11039766 however the output is encrypted and you need something to de-encrypt the output. Even the new meitner stuff is encrypted. (the old stuff was not, but nothing played it anyway) Your dac would do no good as it can't eat a DSD signal which is 2.56 mhz and equivalent to and directly convertable to and from 24 bits at 192 khz.

Yes, and a krell sacd standard, and a few others... The sony gets very little use.

If you had a decent sacd player you would not say that.

just ordered all 25, thanks...

You can't measure the bias at the front panel connector without a real VTVM. Digital meters are way to low in impedance...

Of this you can be sure. I'm now a permanent member of the instrument modeling shop in addition to everything else, and well the NC toys and bridgeports... There is no limit. Even at home i have a mill and a lathe, a precision (.0001) drill press and a 1 foot shear. But really drilling holes that way is all sorts of very dangerous. Those hole saws are for wood. NOT FOR METAL. Go and get a couple sizes of chassis punches. Not very expensive. Definitely not expensive compared to 30+ stitches to your stomach when the chassis lets loose. You can find the chassis punches (greenlee's) all over the place, and at hamfests for $5 each. I have a dozen different sizes at home, most are older than I am, and will last forever if you don't do something really stupid with them.

not quite but close. pete used an off the shelf switching transformer with 2 secondaries. one was used for the filaments.

The completely backwards approach. I have something and want to use it. Pencil tubes not really suited for this. Send the tubes off to pete millet and he can put them in his whacky portable for you. Not going to be cheap. You are going to need the switchers he uses to raise the B+ to something like 48 volts. Then use the solid state buffers to drive the headphones. 48 volts and 1.5 volts both come off the switcher.

He edited the first square wave but did not edit the second. Pretty pathetic he can't even proof read his own crap. Anyone with any brains would take what he has said about VD power cords and Rudistor and assign it to the garbage can where it belongs. Kind of funny actually. And yes, driving real equipment with square waves is going to make all sorts of extra noise, and some equipment might actually seriously overheat. There are some UPS's for computer use that actually do put out square waves, they come with warning signs to use on switching power supplies only. When you get into the 10kw+ range, efficiency makes a very big difference.

this from a man who posted a shill review of the new psaudio powerplant and somehow turned the specs into square waves. For which i corrected him, and he said it was a typo. TWICE So how do you get from SQUARE to SINE as a typo??

And the clear king of spl is the koss esp950 box. runs off of + and - 600 volt power supplies. Actually clips within a few volts of those rails, so about 2350 Vpp stator to stator. srm 212 and the srm 252 running off the power brick at nominal voltage are + and - 325. Run them off of the battery and you get + and - 350 srm-001 on a fresh battery +550. sinks pretty quickly to +500.

Yes lets post as many schematics for ray as possible. I've never seen the jones designs (well at least not by that name) That national design has some significant bugs in it...

Will scan sra3s schematic later today unless someone else wants to do it.

I'm not sure that even ray has decided which schematic to steal. But the one on the tubecad site that uses 5687's seems to be perfect. Take a B52, make a different circuit board, and change the output jack mounting plate, and leave everything else the same. Major changes to the power supply section. Bang Zoom and a ray samuels electrostatic amp. Gotta be $6500 or more. A better question is which schematic he is going to steal for the solid state version.

The stax SRX circuit is all tubes. The stax SRA-3S circuit is a solid state/tube hybrid. It was the first fully dc coupled amp that stax made. One is not an outgrowth of the other, they are just plain different. There is also very little that is the same between the SRA3S and the SRM-T1 on which all the current amps are based.