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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Adrian, I wonder how you wound up with the never-mentioned FET 10? FWIW, it was one of the better all around phono stages I've heard, and - not that it matters - I prefer it to the EAR 834 I heard. Is this another case wher...
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I have huge AMCC800A cores for two such transformersand good winders with HV experience. I also have a lot ofquiality coax cable, good to few kV for the chassis hook-up.Again, if somebody is willing to take care of that, I can lend.I'm myself 3000km ...
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Sure, Chris, if I would be able to make the air-trans of acceptable size then I would defiantly go for it. If I pretend that the Super Milq pushed some boundaries (and I do feel it) then to use an air-core transformer for HF channel is exactly what i...
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I have run each of these for long periods and can validly comment.My power amp circuitry is a 6N1 based Mu Follower driving a 2A3 in turn driving a 3K Tamura amorphous core OPT.The 6N1 tube is a special military type that is not freely available.Ther...
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Chris, I see where you are coming form and I was thinking about it myself. I would say that anything above 0.68uF was in somewhere listenable but I would not say that it was day and nigh difference. The increase of capacitance GRADUALLY improved soun...
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Yes, I've heard this theory too that paralelling caps lowers the esr/esl => better rise time.No idea if it's true or only an excuse for not using big, hard to get and expensive single caps.PSA quote from arandom physicsforums thread:"In the genera...
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[quote user="Antonio J."] - Regarding C2 the 2000uF/450v cap, he suggests to replace it with 5 x 200uF/200V by Mundorf (he can get them for a good price, probably better those five caps than a single 2000/450). I'm not sure about this replacement, it...
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[quote user="clarkjohnsen"] The sales guy was insisted about the super-isolation quality of adeptResponse but it is all BS, he did not understand what he was talking about. You are arguing that the unit can't be much good because the sales guy was ta...
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[quote user="Paul S"]It surprises me if you wish to do away with the battery. Or, perhaps a unit could be offered "less battery", which the purchaser/user could add on his/her own. This would "solve" the logistical problems (and the expense) of shchl...
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[quote user="Romy the Cat"]Thank you very much, it is very nice to learn about it. The dilemma that I see standing in front of me is following. In a 194 months, I have my Remies completed and fully operational, sounding perfect after 2 hours, let's ...
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Well, as I understand there is no truly GM70 vs. 6C33C context yet (sound in the respectfully equitable load) from you and it will be very interesting to hear from you when you feel that you are ready to say something. As I understand they are the sa...
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It's quite a marvel from what I can tell now. The overall sound is somewhat on the darker side but the preamp is still breaking in (although I gave it 30h benchtop burn in with the frybaby track). I also suppose it reveals the Dannoy and the room int...
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It looks like you will be building not DSET but a full range amp. You need to come up with the chassis design and it is a bit complicated possess. Do not be in hurry with this possess. You need to think about the location of the main elements on chas...
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"... and I do not know if 3A/167M is better than anything else and I do not see why the metal socket is necessarily better then plastic – the socket is not the part of the tube."As you know, the 437A is like an on-steroids ECC83, ALL glass built, no ...
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Hello to everyone, am new to the sight. Been reading for a while and decided to mod my 834. I've had the unit since '96, purchased new from the local dealer. I have noticed a few differences from the schematic, the 220K load resistors R10 and R110...
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Righto then, I guess there is no reason not to try this, except that one of the original crossovers here is non-functioning (if I remember correctly), so if trialling in stereo I'll have to crossover in Melquiades. Should have the parts here to do t...
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This is what I try to stick to: Try to create closed magnetic (steel) loops around magnetics. Ideally acompany itwith closed electric (copper) loops. This I think Pieter has done that already for you, but,as Romy impicite suggests, double boxing will...
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I got some time on the PC to start to think about how to layout the DSET. I plan to build it a little like a skyscraper: multiple levels separated by component groups and functions. So mains transformers, AC socket and perhaps time delay rel...
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Allo,Well, the divider may certainly be responsible for some softening of transients - in particualr, what values are you using there?Also, the received wisdom is that silver micas are created far from equal; no experience with them myself but I beli...
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Well, thanks for the heads up, I was planning on giving myself a PP2000 for Xmas, now I have to re think this.I used to have a 10Kva Isolation transformer and a DIY sort of Line conditioning system with a bunch of nice 4.7 mfd caps between Positive ...
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I have a 10KVA Isolation transformer that feeds on two separate 8 ga cables running direct from the house meters into an breaker into de transformer. This breaker is the one I use to turn my system on and off. The Isolation transformer recieves two ...
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[quote user="drdna"]…… people forget that a circuit is a physical collection of dynamically interacting electromagnetic fields…… [/quote]
Isn’t it might a separate VERY large subject?
[quote user="drdna"] The low level resolution is exquisite but t...
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Chris, at this point it is hard to say anything defiantly. Subjectively it sounds like the Super Milq has slightly less HF extension and transient then the regular Milq, although the output transformer of the HF channel of Super Milq runs higher and ...
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Here is the link, though I have no idea whose words he is quoting:
http://twogoodears.blogspot.com/2010/02/again-about-duelunds-coherent-audio-pio.html
The caps are $1000 per 630V/1uF. So, I wonder what those super expensive caps ...
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[quote user="Vance"] Romy, it takes several months for those blackgate caps to fully calm down…. [/quote]
Actually I take more like several decades and then 5 years after you each time shut down the unit for 5 minutes. I am known to be not a huge fu...
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[quote user="drdna"] Honestly for now, the character of the tuner is unobtrusive enough that I notice mostly the problems I have with the preamplifier and the electricity. However, I would be interested about what you had thought at this point to be ...
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Yes, thanks Charles and thanks for everyone who sent the direct amps on this subject.
The ClarityCaps, similar to the Canadian Solens, British Ansars Supersound, the French MKP, and a few others proposed, are all Metallized Polypropylene caps. I am ...
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[quote user="Romy the Cat"]
cv wrote:
I wonder if it is the reactive components (blocking caps etc) that are to blame here, seeing as much of the problem is in the lower bass.Chris, what you said made me to think.
Loo...
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I have also been thinking of subbing electrolytics for the huge - up to 100 uF - caps in my speaker level crossovers, just to hear it for myself. Although everyone says to use polys in the signal path, etc., I just wonder about a...
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...but it will take me N-years and I'm in EU :)I could make some preliminary steps this Easter, talk to my winders about transformers etc.I'm for sure missing the FW and out put cores (AMCC800A will not support 120H at 300mA, low DCR), but getting ma...
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