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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="Romy the Cat"] anthony wrote: The fuse. You show a
fuse on this schematic (that traces back to the B+ supply) but omit it on the 6-Channel
schematic that I linked to earlier in the thread. Do you use this fuse or
have you removed i...
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[quote user="Romy the Cat"]Is something brewing in the former Czechoslovakia? The whole country is the size of a half of New Jersey but they have 3 manufactures that do “objectionable” tube today. Is it the same rebranded group of people behind of al...
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Thank you both.
My loading is pretty small since the 2A3 SET amps take only about 250VA total.
Add to it tubed phono and DAC/transport and it is still not much.
I may be getting bass units, each with its own plate amp. These can be
a few hu...
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This week I will be trying to address why the Milq midbass is clipping. This is very interesting one. Currently the Melquiades LF channel uses an output transformer 700R to 5R or 11.83 to 1. I thought before that I have much lower ratio, like 5:1 bu...
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Last night I was listening Zubin Mehta’s recording of Bruckner’s Symphony No.9. It was his first recoding from 1966 with Vienna. I am not a big fun of this performance all together but it has spectacular first movement. It played superbly slow and s...
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As I said above - the myth of my easy replaceable tubes for my MF channel got evaporated. Sure, it is physically possible to plug in those 2A3, 45 or 4V tube and they all will work fine but Macondo will not tolerate it. In fact getting now the p...
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I got few inspirations recently that made me to dedicate today for building another DH MF for second amp. It is end of the day and the conversion of the second amp is done, including the PS, marking and drilling the holes, driver stage and the DH...
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I was pointed at a site where people debating the subject of 2A3 vs. 45 vs. AD1 vs. RN604 vs. YO168. Naturally they pointed out to my site, bringing my articles from this thread on the same subject as some kind of reference.
I read their comm...
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The name of the post I took from the 32th chapter of M. Bulgakov’s Master and Margarita, so from there will be the epigraph for this post:
“Gods, my gods! How sad the earth is at evening! How mysterious are the fogs over the swamps! …So...
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[quote user="Romy the Cat"]
I always was kind of afraid of it. Any single zillion years tube I see is “NOS in box”, “measured as new” or “never work”. So, I wonder where those uses up old tubes are gone? Do people trash them or juts sell them “as n...
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CV, Good scenario as well but my leading idea is slightly different. I would like to keep any reactance from the path, would it be inductive of capacitive, to assure ultra fast response time. Basically I would like to maintain the MF amp as it used ...
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[quote user="Romy the Cat"]That sucks. I use to have a box of perhaps a dozen of YO186 but I did not see it for a while, pretty much from the time I moved to new house. I was listening today some of my “critical” reference stuff and concluded with ve...
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[quote user="drdna"] It is a very old idea to say that higher power is required for good bass response. I do not think you will get any argument from anyone that increased power makes finding solutions to achieve a good bass response easier. [/quote]...
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Hi Roman et al!Allow me to introduce myself. I have followed with amusement Romy the Cat for many years. He is ascerbic and ultracritical, but he does know audio. We share many tastes, like the Koetsu Onyx Platinum foir instance, on...
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[quote user="op.9"]A 20w tripath and a 5w El84 set per channel is a sensible and cheap combination. The tripath and line level crossover section could be thrown in for free![/quote]
Ah, the EL84! That brings so many memories…. I was 9-10 years old a...
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If one dht is good, two must be better?
I don't know. Some people like combining 6C45 etc with DHT, supposedly mixing the appealing qualities of each. Other people find that using a 6C45 (or other high-gm tube) with a 300B just makes a 300B sound...
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The reason that I built the 6C33C preamp was to explore the 6C33C true musical potential like I did with the 845. Not only did I compare the sound of these tubes in power amp, but also in preamp. The reason is that with power amp you might hit some l...
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[quote user="Paul S"]Joaco, all this will probably be moved back to the "Electricity" thread, which is not really an APS Forum, as it has appeared for a while, now.
Paul[/quote]Yes , I made a mistake ... it will be much better in the Electricity thr...
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[quote user="Romy the Cat"][quote user="drdna"] You are correct, though I believe the subwoofer covers only below 35 hz. [/quote] So???[/quote]So, my thought was that below 35 hz, there are many ways of thinking about amplification. Some might say S...
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[quote user="Paul S"] I really would not know where to start with most of the crap out there, since most commercial SS sounds like it makes "music" by inhaling it. But I've heard "acceptable" units from those listed, albeit in some poor environ...
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I need to finish posting in this thread as the subject of this thread is practically over. Still, here are a few comments that I would like to make.
A few years back, driving the S2 with 6C33C I was pitching the harder loading, trying to damp ...
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I have heard hundreds and hundreds of audio systems and mine is by far the best. Honestly nothing even comes close. There is a scientific reason for this. MY system starts with a PERFECTLY tuned room...something overlooked by ma...
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My amp is a stereo 2a3 / 45 .
Lately I find my self listening in mono because of the area of my apartment and because I can focus better on the reproduction .
So this is not a stereo / mono discussion , just better for my needs .
Im planning...
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[quote user="drdna"] It is NOT that better tubes have no vibration. Instead, the tubes that sound best to me seem to have a sort of springy sound, like the sound of a water drop or the sound of the tabla drum being struck. [/quote]
Interesting. My f...
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Very cool results I’m get in here. I took the new Slagle’s transformer that has reconfigurable sections and put it in the Milq. With 13V on primary I have 625mV or 520mV on secondary, or 20:1 and 25:1 (with 200-300mV normally drive the speakers ...
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Be careful to relieve me if I am not impressed, many promised no one excelled. :-)
Chris, I do not think that you will see me to think about transformers for other channels. I do not think that what I do will be some kind of resolution for Amor...
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Romy, Some very good points here... if I downloaded the correct schematic from your site for the 6-channel Melq amp (also has the term DSET in the title) then you have created a 6-channel SET amp with built-in crossover points. Your first ...
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Okay... I also downloaded the original Milq SET amplifier PDF and have looked at it in detail as well as the 6-channel adaptation (DSET) and I understand where you're going with it... or so I think. In my particular situation, I've owned two pair of ...
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[quote user="Romy the Cat"]
[/quote] Funny it took 2.5 hours to build the San Audio Kit for 6E5P. The 6E5P is at 150V (a bit low for it but it is OK), loaded with 15K and coupled with 2A3 via a cap. The 6E5P is biased with one 3.6V lithium ba...
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[quote user="Romy the Cat"][quote user="drdna"]However, there is no comparison to the expensive tubes from Kron, Sophia, and Emission Labs. These are all in a separate category. These produce a very different sound. It is like this: on the old black ...
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