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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="JJ Triode"]Romy,Try running the left and right signals from the stereo arms, one at a time, into the known-good mono phonocorrector. If the problem is not present then you know the stereo corrector is to blame.Are both left and right ch...
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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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Got today a shipment from Tokyo with the OS-106 record. It is the same Ormandy’s Bach with Philadelphia but pressed but Japan. It sounds even better. To hear it today is even more fun than ever. We have very windy but very warm day today and the New ...
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Thank you for some great ideas! I was actually reluctant to admit that I made several changes at once, with changed-twice arm wire terminations, new IC link, new "dedicated" grounding scheme, and (most embarassing of all) new tubes in the phono...
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So, it has been a while. I have DSET/Macondo in stereo now although there is still some work to do to finish it and tune it to the room. As discussed earlier in this thread I need a preamp with gain and the Placette is just not cutting it for me (n...
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[quote user="N-set"]... I cannot imagine where the fuck I should have a loop??? [/quote] And you are not alone. Any single person who is chasing noise in phonostage ask himself the same question. I assure you that sun of later you will find it and it...
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Does anybody try to change shunt regulators OA2 to 15K Ohm resistor?I heard from number of people that OA2 is too noisy for phonostage.For example, in this article wrote about this http://www.audionote.co.uk/articles/tweak_ai_p2_phono_mod_0...
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Yes, Thorsten was the man
that made the initial modification in the EAR 834 and I need to note that it
was not redesign of any kind but juts basic modifications and admitting the unnecessary
things. Even though Thorsten is the industry p...
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Antonio, I never understood this concept of “gain selector”. If I remember correctly S&B had 10, 20 25 db options via re-wiring of the primary coil. It is not complicated to place primary in some kind of rotary 3-position switch but it would be c...
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Functionally, these are the same caps I already replaced once/twice (and wrote about) before, namely the big "parafeed" couplers. The unit came with bypassed 4 uF Kimbers, which were fuzzy and slow, so I replaced them with 3.3 uF Mundorf Silver...
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Yesterday my machinist informed me that the End of Life Phonostage’s chassis will be reedy next week. So, I desisted update the power supplies of the thing replacing the FRED diodes with those no reverse/forward recovery Silicon Carbide Schottky diod...
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Thanks Romy,I particularly appreciate the advice on the Goto issue, although a sojourn in Japan would be delightful too, come to think of it; in my experience there's no better place for culinary and audio tourism combined. "Local" support in the cas...
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[quote user="Romy the Cat"]
What is the difference in audio? You spend day of you live in your listening rooms trying to make that cable elevator between your phonostage and cartridge to “sound better” and someone after listening your setup inform y...
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[quote user="Romy the Cat"] Marc Mickelson had an “honor” to make my site in past:
http://www.goodsoundclub.com/TreeItem.aspx?PostID=760
http://www.goodsoundclub.com/TreeItem.aspx?PostID=2773
Marc is the “gear of the machinery” a...
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I think there is a definate trend here regarding distortions that cannot be ignored. Guy, you pointed out some excessive 2nd order harmonics with the Melq bias point. Hey, maybe so. I haven't really looked into this tube - but I jus...
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I made today a bunch of experiments with shielding of the MF filtering choke and I have very good progress. I was talking with different people and had a number of good advises (Come one, people the ward “advise” must have a plural form!) The in...
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I got home today, power up the payback and played some bootlegs of Australian festivals that Kostas Metaxas sent me another day. I paid attention that the sound was strange it was too hard atop. That was something new. I put in my player the CDs...
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SOS, DC from PP output would not make PP unit itself made noise but will make some PS of the components connected to PP to have buzz, mostly mechanical. This type of noise would not fluctuate with volume. If you claim that you have buzzing then afte...
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After 4 days of suiting in boxes in my listening room today is my day off and I decided to dedicate it to play with the new Pure Power 3000+.
I desired to use just records and connected all amps, preamps and phonostage to ol...
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Well the marketing power can change dirt into gold, we all know that. I have no problems with manufacturers who offer "such" units. We, the customers (especially here in this Forum) are fixed on the quality of sound. Some years ago there was a meetin...
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While I have found the Amperex globes act more consistently than the Bugle Boys I wouldn't call the Bugles uniformly bad. I wonder if they just don't match up with current amps as uniformly as the later Globes? I have a stockpile of GE longplates fro...
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Rick, sure, working volltage is important. What does your inverter require in the way of current in order to produce it's rated voltage at its rated current? I can remember times when I measured "correct" voltage when the battery was functionally use...
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Hello all (from Thailand)!I found this very intersting horn society here by accident and would like to show and share my first experience with horn speakers system.It's consist of 4 way system .[IMG]http://i245.photobucket.com/albums/gg69/krairerk/hi...
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Using the AD/DA and employing those Dominus cables I could not believe lived without the tape loop. Plugging Pacific into the loop I in fact save one spare cable and got assurance that I would never will move/plug/unplug my AD anymore. I feel like w...
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I made today an experiment trying to record LP. I know people backup LP to digital for dozens years and claim good results. I do not back up my best records to digital. I have no need – if I have to play a record then I play record. However, there ar...
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[quote user="N-set"] Romy would you care to elaborate on that a bit? In particular have you hear amorphous/silver combination?[/quote] Nope I never had it and even f I did it would be difficult to generalize anything. I had only once a fully silver...
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scooter,
actually this is something what I am planning to do: to have a few selected items that I will moive myself in my car and then let the rest to be move in by movers. The place is not far from Back Bay. It is West Woburn, right equidista...
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OK, folks, today I have started slowly to setup the playback itself. I took the small bass speaker I have and moved it around the room. The room surprisingly bassy, that is good. While I was doing it I was installing my TT, set up phonostage... I de...
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[quote user="AlexBerger"]
I heard from number of people that OA2 is too noisy for phonostage.For example, in this article wrote about this http://www.audionote.co.uk/articles/tweak_ai_p2_phono_mod_01.shtml
[/quote]Those type of statemen...
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Interesting, How much is what your appreciate in the SPU sound derives from the SPU’s high output. When we load out typical 60-65++ dB gain phonostages with high output 2-3mV cartridges then Sound is way more interesting. I would not speculate if th...
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