John Curl's Blowtorch preamplifier part II

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And if, instead of saddening you with the death of an audio designer, did you begin by stopping here this endless "J.C. bashing" which smells of jealousy ?
The living *need* more respect and sympathy than the dead and will be regretted when their turn comes.

Charles trolled (and I mean trolled, let's not revise history) this and the prior BT thread with more than enough technically incorrect positions which he held zealously, and was roundly rebuffed. He was quite nasty at times, too.* JC does the same thing, if you've paid any attention. Perhaps I'm tone deaf, but in neither case has there been any sense of wanting ill on the person, rather that their position (as Howie puts it, crudely or not) is wrong. Are you reading far more ill will rather than frustration/exasperation into the exchanges here than I am?

And with the number of (at least by conventional standards) successful people that float about this thread, I don't really get the jealousy thing. It'd be the same as me accusing you of hero-worshiping, which I won't do (just making the counter-analogy).

*I'd by lying to say I wouldn't take back some of my comments in DiyAudio, so there's allowances to be made here.
 
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endless "J.C. bashing" which smells of jealousy?

I don't think you pay enough attention, I have stopped periodically to give due respect and if you search you will find it. If you want a fanboy worship thread fine but posting the same 6 or 8 transistor 40yr. old circuits as the be all and end all and blessed silver wire carefully directionalized is the only useful next step is BS and I will not stop calling it out. Jealous (envy is the correct word) how silly I'm sorry JC did not manage things better for himself.

You have to also understand a lot the audio gurus are charismatic and have a posse of fanboys, the idea that a truly blind DBT test of their ideas of any kind gets done is a joke.
 
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Charles trolled.... with more than enough technically incorrect positions
Two questions about "technically incorrect". Not agressive, please think what they implies.

1- Did his designs were not working ? (If yes, they are technically correct, right ?)

2- Are-you the one witch hold the absolute truth of the "technically correct" religion ? ( Of course this question does not imply that I could not agree on many things with you or that I hold the truth if I do not.).

1 -but posting the same 6 or 8 transistor 40yr. old circuits
2 -and blessed silver wire carefully directionalized
3-You have to also understand a lot the audio gurus are charismatic and have a posse of fanboys, the idea that a truly blind DBT test of their ideas of any kind gets done is a joke.
1 - ...is better than not posting any schematic at all ;-) as it can teach something to some people.
Age is not a criterion, my Stax headphones are better than the last dr. Dre's Beats headphones. Agree ? In the same time, age deserve indulgence. Read my lips.

2 - Well ... hum... (smile) ... hum ... Silver* is a good is conductor of electricity. Not technically incorrect, right ? If someone is convinced it sounds better, why waste his pleasure ?

3- Lot can be said -and the contrary- about listening tests ...from subjective to so called objective ... from "silver oriented sound better" to "all amps sound the same".

It is all about audio. A hobby, a fashion, a passion, a science, an outward sign of wealth. A little like cars, less dangerous.
No need to fight or lose his kindness and indulgence for such a trifle. Life is SOOOOO short.

*In my language, Silver and Money use the same word.
 
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It is all about audio. A hobby, a fashion, a passion, a science, an outward sign of wealth. A little like cars, less dangerous.
No need to fight or lose his kindness and indulgence for such a trifle.

*In my language, Silver and Money use the same word.

You are obviously looking for something else here, this and other threads turn a lot of young folks away from DIY as a hobby by constantly making claims that if you don't use this or that long discontinued $$$ device you can never make a "hi-end" preamp or amplifier. I disagree and will continue to disagree in the context of getting people to learn the basics and actually build something.

Yes, JC did not "gagner beaucoup d'argent".
 
Hey Scott, I use IC's too! And my IC based Parasound phono stage has been very successful. I pretty much make one half my royalties from it alone, but it is not my best effort. Discrete is still better, no matter what you say, and is better than digital, so far as I can determine, but I am working on that, and I hope to make highest quality digital be as good as analog if I can. I just haven't given up with highest quality audio design, even though I was always more compromised in this that Charley Hansen was. I WILL use negative feedback if necessary, even though I agreed with Charley that feedback is problematic, and should be avoided if possible.
I use STAX Lambda Pro headphones with tube drive as my best reference, not my familiar Sequerra Met 7's, although for MP-3 based stuff, like Comcast, they serve to make the sound quality acceptable. You should try the STAX setup, you could afford them if you wanted to.
 
Hey Scott, I use IC's too! And my IC based Parasound phono stage has been very successful.
I use STAX Lambda Pro headphones with tube drive as my best reference, not my familiar Sequerra Met 7's, although for MP-3 based stuff, like Comcast, they serve to make the sound quality acceptable. You should try the STAX setup, you could afford them if you wanted to.

Nice headphones! I'll be back in USA Dec 6. Talk to you then.

-RM
 
You are obviously looking for something else here, this and other threads turn a lot of young folks away from DIY as a hobby by constantly making claims that if you don't use this or that long discontinued $$$ device you can never make a "hi-end" preamp or amplifier. I disagree and will continue to disagree in the context of getting people to learn the basics and actually build something.
Scott, I believe that the fact it is more and more difficult and expensive to get the parts you need to complete a project is the major reason for running away from DIY.
My local electronic components's seller in Moulinsart has disappeared long time ago.

Hi-end is a stupid word, on my point of view. Just like "supercars". (I'm not rich enough to be interested ;-).
Accumulating the most expensive parts do not even assure nobody to build a decent system.

On an other way a 'pure technical' approach don't give-you the assurance of very good results neither.

I believe the right way is in the middle. 100% calculations, 100% listenings ;-)
And anyway, can't we share various experiences and various opinions between gentlemen that don't believe that they are crusading ?

Anyway, I have a question to all the designers here that are on this crusade for "technically correct". Why do you continue to design audio electronic components ?
There are so many industrial cheaper ones on the market that measure good enough.
 
Two questions about "technically incorrect". Not agressive, please think what they implies.

1- Did his designs were not working ? (If yes, they are technically correct, right ?)

2- Are-you the one witch hold the absolute truth of the "technically correct" religion ? ( Of course this question does not imply that I could not agree on many things with you or that I hold the truth if I do not.).

1.) His designs seemed to work just fine (which is more than many Stereophile reviewed amps can say!). His views on feedback and cable risers were his own and his own only (and in contradiction to much better established understanding).

2.) Certainly not a holder of the absolute truth. But we should leverage what we do know to its fullest extent before needing to make things up for our own ideology to work.

As to your last question about "good enough", my motivation to build stuff is it's fun building stuff, even if any ostensible advantage it provides (at great cost versus mid-priced equipment bought second hand) is entirely zero-to-detrimental.
 
Scott, I believe that the fact it is more and more difficult and expensive to get the parts you need to complete a project is the major reason for running away from DIY.
.

Sorry this is just wrong. Mouser, digikey, etc mean that you can get your parts in a couple of days for almost anything. Some parts of DIY are easier than ever before. Not sure what's expensive unless you like to buy things one part at a time.
 
Anyone remember buying single signal transistors for $10 each? I do. Resistors (carbon comp, 10%) often cost $0.25 to $0.50. More if you wanted high precision 5% carbon composition. Don't even ask about capacitors and more advanced items, like ICs.

Decent meters were 1% to 2% accurate, and the really good ones (Fluke 8000 I think) were extremely expensive. You had to buy the ohms, mV and AC options for them on top of the base instrument.

Hobby and industrial 'scopes were 500 KHz tube models. I'm talking in the 60's.

There is no way you can tell me things are more expensive now compared to back then. If anything, hobbyists have it more than great these days! Can anyone imagine what having sites like this would have been like back then?

-Chris
 
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