kevin gilmore

Bingo x 5.. Many thanks... As usual its the keywords that are all important in the search. My master machinist knows where to get the spring loaded handles...

You have no idea what qualifies as a TA these days. I'm not looking for cheap. I'm looking for something pretty.

I know they are a standard issue thing, but hours of searching have found nothing. If you have a catalog name/part number that would be great. 1.5 inch ID. I did find the drumset clamps. If i can't find what i want, those are definitely the next in line.

For what is to become the ultimate headphone stand... http://gilmore.chem.northwestern.edu/headstand1.jpg http://gilmore.chem.northwestern.edu/headstand2.jpg I'm looking for more of the 2 piece tube clamps pictured. 1.5 inch diameter. These have to be a stock item somewhere, i just can't find out where.

The superman glasses are at the beam line at argon national labs.(synchrotron) Which i have access too. But if i pulled a stunt like this on the beam line i surely would get my ass thrown in jail for a long time. This is the 2.5kw version Rigaku Americas -- Products -- Generators -- FR-E+ SuperBright The 50kw version is much more fun.

The volume knob on ray's new piece of crap is an alps SLLB5 http://www3.alps.com/WebObjects/catalog.woa/E/PDF/Switch/MultiControl/SLLB5/SLLB5.PDF I'm virtually 100% sure now that the digital potentiomenter chip is a dallas semiconductor (as in maxim) ds-1802 http://datasheets.maxim-ic.com/en/ds/DS1802.pdf One of the 8 pin chips is a rail splitter and the other is a 3 volt capable opamp. Which means once again.... flea power output. OR lots of clipping... No usb charging chip. Guaranteed ground loop when using the computer to simultaneously power the amp and the sound card as the source. Yep, typical ray... better than some of his stuff, but overall a D- Did not even need my new (and currently broken) 4k x 4k Xray machine... Getting a rotating anode machine in about 1 year (50Kv at 1 AMP!) Won't even have to take the circuit board out of the case...

It will work, but the regulators may be running at the very bottom of their regulation range. So noise and other problems might show up.

The things in the melos drifted more than 1db just by waving paper over them. The temp curves of the photodiode and led would have to match extremely well to make this work. Since the two are completely different semiconductor processes, this is almost impossible.

LDR's suck when it comes to stability WRT temperature. Anyone that has ever had to fix a marantz 10B would know this. Bad idea for portables.

The wolfson dac definitely is native dsd compatible, but if you read thru the marketing bullshit, the term DSD is never ever used. Just high resolution WAV files. This is a boat anchor from the start. Not going to be upgradeable to DSD without significant amounts of work, and licensing. No way un-encrypted i2s link is going to be allowed for DSD. Unlikely that PSaudio actually designed this, someone else did. Another antique right out of the box. You would be much better off buying the latest dCS stuff at 33% of retail and then bolting it to a late model sony for about the same price.

Did not see that. Which means it is completely useless unless you buy both pieces as there is no other way to get pure dsd into the dac. Makes it much less usefull. And sort of typical for them, as i was wondering how they accomplished all that with hdmi, and the answer is that they did not. People are not going to read the fine print and try and hook up a sony or oppo and find out that it does not work.

I think you need names for them. But a few of the names are missing. Nothing small enough to be called the "ray samuels" model. Nothing big enough to be called the "Tuberoller" (in his dreams) model. Nothing long enough to be called the "Mikhail"

But they advertise it as being the only component necessary between the source and the power amp. That makes it a preamp like thing. surround sound is clearly the future when it comes to integrated audio/video stuff. Like it or not, most people only have the room for one man cave, and everything has to go into that one room. They have done all the hard work (user interface et all) including the hdmi stuff, might as well finish the job.

They are missing the boat again. Needs hdmi passthru. Needs 5.1 surround decoding. Needs 5.1 channels of balanced output. Then double the price and they might have something to compete for the future.

A. NOPE. No sand except in the power supply. Power supply could in fact be all tubes. Will show a picture of the ultra isolated multi channel filament supply at some point. Its really cute. B. Its a real bear to build. I only know of 3 total working units. Voltage compliance at the front end is very tight, and you have to pick very well matched input tubes. STOP IT. I get enough spam as it is. People know how to find me.

bigir, i will get you for this. texas-de-brazil. yuum

while you have it open, write down the part number on the side of the led, because one segment is out, and you really should replace it. mikhail just glues in the glass with superglue. superglue, glass(plexi) and aluminum don't go together very well. We all remember trevornetworks attempts at same...

Bad day today. Saw a 14.4kv 1000amp commonwealth edison line short against another of same and blow a hole in the road about 20 feet wide. Sure wish i had my video camera for that. Whole building lost power for 55 minutes. As for 6s4's you can push them to about 750 volts. They are rated at either 500 or 550 volts depending on which data sheet you read.2000 volts peak, but that really does not count for class A. 5687's are rated at 300 volts. The 6s4's are single triodes with a 200 volt heater to cathode. So they are a whole bunch easier for many designs.

Ray may actually not know what the design is, as he had his engineer that also does all his circuit board layouts do the thing. So it could be srpp, or it could be constant current, both of which are otherwise identical except the output is taken from either the cathode of the top tube (srpp) or the plate of the bottom tube (ccs). Tests i did last weekend showed that 5687's start to arc and do all sorts of nasty things over 425 volts plate voltage. So the power available from this amplifer could be anywhere from a little bit low (425) or a lot low (300) Transformers would definitely help some as the output impedance of the srpp would see roughly a constant load impedance. In any case for an amplifier priced like the A10, there should be bigger output tubes that can handle at least 800 volts. Then again -=germainia=- really likes ray's hr2. So what the hell do i know

Certainly. But i'm not giving them to you..

AH HA... stink gas... sulfur hexafluoride I had a pair of those a long time back. motorola piezo tweeters inside the air bags. As i remember the gas gave about a 5db gain boost. mskennedy... you kidding right.... those are military boys. their prices are 3 times that of apex...

If you are going thru all the trouble to make an all dc coupled all tube amp, then you might as well scale up the output tubes to handle more voltage and power. Those 3583's went out of production 10 years ago.(probably more than 10 years) If you can find them dirt cheap, then give it a go. You will need sockets for those parts which may be hard to find. You might actually have better luck using DHT's for the outputs, as the gate voltage will be much less... Also remember that this lifts the output voltage to +300 dc. Which means the bias is is now +850 dc. Some people seem to get a bit nervous with that...

Price the pa42's lately??? Plus lots of power supplies. === bitch. Besides which using 6ca7's as the output tubes requires even more messing with the power supplies due to the cut off voltage increase.

The WES is ac coupled. A fully dc coupled all tube amplifier is a royal bitch. Only the srm-717,sr-007t, kgss, kgst, BH, BHSE are fully dc coupled input thru output. The WES is going to blow away the A10. The WES is going to sound similar to mikhail's disasters. Except it won't trash output tubes and otherwise go arcy sparky. The BHSE has a different presentation. All of you out there (with cash) should buy both a BHSE and a WES. YOU WILL BE HAPPY. TRUST ME.

Good circuit. Srx is a good circuit too till mikhail made total trash out of it.