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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I have seen people use 12AU7, 12AT7, the circuitry might be tweaked and it will accept anything. I use a 7025 in second stage (look into the linked thread “Once more unto the phonostage dear friend!”). Hey, I even used a transistor as follower! I kno...
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Hi Jack ,Thank you for your very educational info ! It looks like you are right , and your tubes are rebranded SG13P .... Maybe a big stock of those tubes were exported , and you know them better than we do :-)And another question . You wrote :...
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The Dima’s idea of delaying the modulated signal still not in the auditable format. As I understand he designed the circuit and we get all parts we need but it moves forwards slow. The devise will have modulator, delay mechanism, demodulator and outp...
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Romy and Dima,
Thanks for the update on the delayed Time Delay research. I sincerely hope the device performs to your expectations.
I will follow your progress with self-centered interest, because in my case, the best scenario still puts the ba...
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Hi all ! I thought about this resistor bias idea that Chris proposed , and found some some problems here . One of them discovered Chris himself - it is a big serial resistor in the grid chain , and it can cause not only HF rolloff ( it isn't a big pr...
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But here it is. I made this monoblock fit into less than a square foot. It is tight. I use Hammond iron throughout. Their stuff usually works pretty good for power supplies. I have some photos at my blog. [img]http...
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[quote user="drdna"] First, I do not accept the hypothesis. We must confirm that the Avicenna was working correctly when no impact on the sound was made. It has happened before that a simple mistake in observation led to a faulty hypothesis. It must ...
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Chris,
Since I got that mind-boggling result with “Melquíades” (will finish the thread about the Melquíades sound) I went for an “ultimate solution” for my installation: a “Super Melquíades” amp. It will be dual chassis (amp+PS) 3-chennal amp to mil...
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I have very little familiarity with SS and with the need of
the SS stage to be driven. If you want then talk to Dima directly or over the linked
site, he is comfortable in English. www.tornadoacoustics.ru/_fr/2/Zarathustra.doc
I would sti...
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.. and therefore I do not know how serious to take you.As far as I know as now there are no people who have built Melquiades. I know that up to now about 5 attempts to do it but no one finished it yet up to the point that might report result. Dima is...
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Alex, I do not remember already the volume of those boxes, what is the deference? Thos drivers have an average sealed Qs and Fs I believe 19Hz, you might easy to circulate any volume you want. I slightly overdamped them, as usually, form where they s...
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It is interesting: I am running now Zarathustra amp with my woofer towers, line-level crossed at 90Hz with fist order. Everything is very fine bass-wise, with very minute touch of dominating smoothness. To my surprise the typical upper-bass har...
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After learning about the Schwarz’s circuit Dima declared that it will be very simple to build into the unit a good quietly multiplex decoder as the plug in modules as a substitute to the original modules. This will change nothing in the Schwarz but t...
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I do some very interesting experiments with Rohde & Schwarz tuner. Dima and I have discovered a way to use the Schwarz without the wide bandwidth amplifier, driving the Multiplex Decoder from the Schwarz’s preamps. Basically we put two stages wit...
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Since FM long has been my primary at the most enjoyable audio source I decided to push the envelope a little further. The Rohde & Schwarz tuner bind via wide-bandwidth output with modified Yamaha T-85 MPX decoder sounds identical to Sansui TU-X1....
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Well, it is not necessary a fully qualified urban legend as the problem does take please with fixed based 6C33C but..... only under certain conditions. I have written about it a lot on my site but will very briefly recall it again.
Dima might be cor...
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It happens that I lately become heavily engaged a project that covered me from music-listening and the Morons-insulting person into a soldering and a constantly questionsasking Moron. Well, it is life.... :-(
I lately have some reasons to think abou...
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[quote user="drdna"] Well, and I have a dozen of them sitting here next to my desk while I am building my Milq amp s-l-o-w-l-y so I guess I will discover my audio intelligence level sometime after the New Year.[/quote]
That is so cool that you...
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Domidaw, I am not
participating in helping you too much because I have my own diabolical fun observing
your suffering. Sorry, my friend, I was in the same shoes so many times, literally
having the same feeling and speaking with the same language, ...
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Me! Me! Me! Me! Me! Me!
Me and sub-90dB sensitive speakers and not SET amplifiers! I would rather raise money for Bush/Chaney campaign or to merry a Fidelity Investment business annalist.! However, it is what I am currently listening.
A couple wee...
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While Dima is cooking the Super Zarathustra I figure out that I would need some test speaker to be able to observe the preliminary results. I would not be able to drive the multi-channel Macondo with a single full range amplifier, so I need something...
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Chris, I have no experience with good sounding SS amplifier that might drive high sensitive horns. I also have no expertise to build such an amp. From what I trued before I have learned that in order to sound more or less acceptable the SS should run...
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[quote user="jamesrm618"]I wonder if this will resemble your final results [/quote]Thanks, James, it was fun….
Actually….it does look like I am on something with this Baby Melquiades project.
First of all it is not Baby Melquiades anymore as it be...
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Splitting the Lamm ML3 thread: http://www.goodsoundclub.com/TreeItem.aspx?PostID=3595
There are some people who worship direct-heated tubes and attribute to them some ventures (like absent of higher harmonics and a special micro-fineness). The...
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[quote user="cv"] …..and I am not confident about the sonics….[/quote]
What might be very interesting also is to learn what DC coupling in power amps would do generally in term of Sound.
The first time I thought about it was a few years back when ...
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Yahoo! I was able eventfully to educate myself how to get out of the “Melquíades” the sound that I needed (using some blood injections from Dima)! Now the project with the “Melquíades” amps is slowly converting from a labor to a pleasure!
“In ...
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The headphone amplifiers are mystery for me. Form one perspective it should be simple but from another perspective I never heard any interestingly performing headphones amplifiers. Well, I have to take it back probably as wherever I even heard differ...
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Jim,
in my corrector (Dima’s design with R2=50R) I made many experiments adjusting the VR1. Dima proposed 150V on 7788 plate purely arbitrary, what he did it he never ever seen 7788 and it was just a concept RIAA for him. After it was built and I p...
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Yep, it looks, like very close to “it” design-wise. http://www.studiomaudio.info/loftinwhite.htmlIn the way this amp is one of the manifestations of Loftin-White DC-coupled but it has some own things. The driver stage is the Melquiades Tube to k...
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[quote user="drdna"] I think this 2A3 must have a specific set-up to sound its best. You have not found it yet. To begin with and familiarize yourself with the sound of it, I suggest sticking with the topology that has been tested by amplifier design...
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