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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="Paul S"]Where MODERN electrolytics shine is specifically for PS use[/quote]
I have to agree with it. Furthermore when I agree I back up my word with actions. This morning right after I posted my post above I opened the amps and ...
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[quote user="drdna"]The question in my mind Romy is: why? I will be interested to hear your comment on what your goal was to learn about your system in introducing these and what the results are. After the extent to which you have describ...
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There is large army of people who dedicate quite a lot of efforts in audio for “voicing” audio components, believing that different passive elements of electric circuit, cables, directivity of cables and many other things are “gravely important”.&nbs...
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[quote user="PurePower"] You point out that if a capacitor can hum it is faulty and wound improperly.
You are absolutely correct - the way a capacitor is wound will determine if it can hum or not. Unfortunately almost all capacitors on the m...
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You point out that if a capacitor can hum it is faulty and wound improperly. You are absolutely correct - the way a capacitor is wound will determine if it can hum or not. Unfortunately almost all capacitors on the market are wound in a way that...
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Alex,
I cannot answer your questions objectively. It was over 15
years ago when I was working with this phonostage and since I built the last
version, I did not make any experiments with it. I do feel the design is
spectacular, and I am lu...
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In fact am not only planning to try an electrolytic capacitor as the LF Milq’s coupling (if I found one with low linkage capacitance) but I would also planning to try the “my proprietary” cooked capacitors. I have to admit that it sounds very s...
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I am talking about the fans and the capacitors. I have a PP2000 and the more you load it, the more the capacitors "whine".Nothing from the speakers themselves. It is a pity that cooling is not passive taking into account the efficiency announced. I g...
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I thought I would look at the Memory Player specs and was surprised to be greeted by what is in my books an obscene price list. But it may be quite cheap for others. These things are all relative of course.Best regardsRakeshThe Memory Player 64 T...
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[quote user="drdna"] If you were using, for example, the Kron KR 2A3, you would not be commenting on the sluggish liquid sounds, and it would be very much more competitive with the Melquiades I am sure of it. Adrian[/quote]I doubt swapping...
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Romy,I have rebuilt my phonostage (the pictures after update are added to Picasa):1. Fixed filament. Now a ripple about 1mV (unmeasured by my Fluke). The filter is: C-L-C-L-C
30000uf-3mH-30000uf-3mH-30000uf. I put two 3mH chokes & Nichico...
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Are you saying that this behavior is behavior is characteristic for dried out capacitors? I need to admit that I know very little about solid state electronics and I have no idea how it ages. My amplifiers are 40 years old and certainly it would be c...
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Hi Romy,I read about EAR834p modifications in number of forums. And I never found any explanation how does RIAA feedback work.Only from you I heard about Miller capacity that used in this RIAA.I tried to do my calculations and as I understand the Mil...
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Came across these at Madisound.ClarityCap 100µF 250vdc PX Range Polypropylene Capacitors. I have no experience with them though.Rgs, Charles...
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What's the deal with all these expensive, small value caps? Are people paying this kind of money to bypass their cheaper couplers, or what?http://174.132.244.231/copper-teflon-capacitors.phpThis spiel contains a lot more "technical information" than...
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heres a question for the lot of you-due to general lack of many available capacitors in my shop-- i recently mixed both film AND oil caps to pull together a necessary value for a passive crossover. the GOOD of it, is that it takes away some of ...
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[quote user="Bud"]Sounds like they have a problem with current capability of their chopper circuit, the one that takes the AC voltage and cuts it into very tiny slivers before rectifying it to DC. Obviously the AC reconstitution circuit has adequate ...
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I tried the V-caps in my system and it changed the sound. This is not a big surprise. Any time you change caps, even to the same cap, it is not broken in and you have been soldering and tinkering with your system, and it needs time to set...
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Just saw these on the Stereophile cheap ads page.http://www.audience-av.com/capacitors/t_description.phpI have used the AuriCap and it is OK, if you have to have a cap.I have not tried these new Teflons, and I did not try to find the not-plainly-post...
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[quote user="jessie.dazzle"]As a way of forcing myself to see the thing as a whole, I will start by converting this schematic to a 3D CAD model, illustrating each component and its relation to the others (with more distance between the parts than in ...
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Thanks Bud!We often underestimate the fundamentally very physical way that sound is produced in our stereo circuits in complex electromechanical ways. I agree with Peter Belt that circuits are affected in ways that can be more adequately explai...
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PartsConnexion has has PurePower 2000 and 3000 units on sale 35% and 32% off:http://www.partsconnexion.com/fin_prod_purepower2000.html?utm_source=getresponse&utm_medium=email&utm_campaign=1express&utm_content=pcX%E2%80%99s+BIGGEST+Promoti...
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I've used both tube and solid-state rectification over the years and much is well documented for power supplies, i.e., old ARRL manuals, Tube manuals, etc.. In most cases small value filter caps were shown, as you really couldn't get much in la...
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The very much non-definitive EAR 834P Modification Guide by Loesch Thorsten
Hi,Given that Romy already let the proverbial Cat out of the Bag (pun intended) I think I may have to make good here....
The EAR 834P is a very simple, but rather smartly ...
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[quote user="Romy the Cat"]Also do not forget that the phonostage that you built has very lash and very polite sound. [/quote]I would like to stress the politeness and lushness of 834PT-AIR phonocorrector. This characteristic of this phonostage s...
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[quote user="Romy the Cat"][quote user="drdna"]I would like to start a compendium of anecdotal observations of the idiosyncratic nature of COMPONENT PLACEMENTS in the circuit. [/quote]Surely all passive components in the circuit have influence, but I...
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Paul,
Thanks for pitching the Johnson capacitors. They do not look “large enough” for me. I used in past the following caps:
http://www.oselectronics.com/ose_p96.htm
They have very good size to value ratio. The ironic part that I just called to th...
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I will address the low voltage DAC power supply first since it has multiple applications.The front end comprises a commercial 48/12 volt 20 watt dc/dc converter. This basically is used to provide 1000 volt isolation input to output otherwise you...
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Doug, it is a lot of tuner went over your hand. I wonder what drove you to do so. Was any specific quality of sound that you were looking and the tuner that you own did not serve you?
[quote user="doug s."]romy, there is a tuna freak in los a...
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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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