John Curl's Blowtorch preamplifier

[john curl]

Mike, you have no idea what you are talking about.

[MikeBettinger]

Originally posted by john curl
Mike, you have no idea what you are talking about.

Actually I do. It's just that my years of experience had a slightly different focus so what I say isn't in your world view. It doesn't make it wrong though.

[MikeBettinger]

Originally posted by john curl
Mike, you have no idea what you are talking about.

I just received my absolute sound. You can be very proud of the review of your JC-2. Johnathan Valin is a tough critic to impress. I have not read the article yet, just scanned it, but you've done well. Congratulations.

[KBK]

Originally posted by Edmond Stuart
KBK, how many joints you have smoked?

Look here....you know we don't have any marijuana available anywhere in Canada, so that would be impossible.

Those resistors look interesting. One big problem is that resistance can change micro dynamically due to electron flow patterning under motion, or high delta, ie complex transient loading. This looks to cancel that a bit. I'd bet that they stand good chance to be one of the best damn resistors that you've never heard. In transistor terms, shot noise, transistor noise, whatever you want to call it. An inescapable aspect of semiconductors as a functional device. Finding the most complimentary version of that, with respects to what it produces (as a point of analysis) as a high frequency distortion characteristic is likely key to understanding the 'sonic' effects of the given junction type. In the case of this resistor, it's likely to be pretty table across the loading board, which is key. Linearity is a good thing . Take it where you can get it. For example, you can get the noise out of the transistor, but it is either a perfect insulator or a perfect conductor at that point. No more semi-conductive junction. Linearizing the junction alone, is a damn fine art. I mean, IIRC, perfection in materials tends to only show up as repeatable manufacturing, and does not affect junction quality, with respects to curing any non linearities. Only the right semiconductive materials will do that. But they are inherently 'lumpy' regarding response, by design, or no semiconductor. What can you do.

[scott wurcer]

Originally posted by john curl
Not yours, PMA. Please, I do not want to push the point with added details.

John, I figured talking about some real circuits woudn't hurt these proceedings it beats the 'pithy' comments.

Today I got a telemarketer to drop their script and we started talking about a common interest, after a minute or two we both stopped, thinking 'this is wierd'.

[MikeBettinger]

Originally posted by scott wurcer

Today I got a telemarketer to drop their script and we started talking about a common interest, after a minute or two we both stopped, thinking 'this is wierd'.

You're better off sticking to the script, no chance of having to re-evaluate what makes so much sense.

[john curl]

Unfortunately, many here have not tried different resistors, so they don't know what they are criticizing. Some Vishay resistors actually sound relatively lousy, yet have great specs. These resistors look like 'naked' Vishay resistors and they are supposed to sound very good, but they are very expensive and delicate. They sound even better after being cryoed.
Many here have little or no idea what we do to get good sound.

[john curl]

Scott, this is a big board. Why don't you start talking about your quickly designed circuits on your own thread? I agree with Nelson, that people would like to see your hobby circuits, but they do not represent the 'best' of anything.

[fizzard]

Mr. Curl, are there any materials that lose sound quality with cryo treating, and should be avoided?

[scott wurcer]

Originally posted by john curl
Scott, this is a big board. Why don't you start talking about your quickly designed circuits on your own thread? I agree with Nelson, that people would like to see your hobby circuits, but they do not represent the 'best' of anything.

I figured I should have done that in the first place, but thank you for the generous advice.