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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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N-set, if you have an unused circuit in the apt., then its neutral may be an acceptable ground path (neutral stays "on" even when breaker is "off"...).Re, the phono calibration, I have expounded the SRA at length in the "Vinyl Ceremonies" thread. As ...
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Bud, thanks for saying well what I have been trying to say (poorly) for years. This plus "corona discharge" effects from large parts, especially, can make it very difficult to quiet, say, a phono stage that is full of large parts, especially transfo...
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Ric, I sheepishly admit that at this point I remain entranced with the idea of a Class A behemoth. Probably my suicidal tendencies at work... Think of the last big tower that Tesla was working on when he died; now match current to voltage... Before ...
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Yes, it is anybody's guess how an active SS-only phono stage would sound with a low output MC, since this is usually a recipe for death (of Music). My own cartridge, for example, only puts out .125mV. I'm not so sure even the 2008 would work for my...
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First as stated before, when I 1st received the unit no hum issue it was after it was sent back twice that it came about. 2nd if I use my other conditioner, a Purist Audio Design all is dead quite. The humming out of the speakers stops if you plug th...
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Is this not similar to gas mileage? In Germany, we have busses running on fuel cells. Is that optimum transportation? Well it depends. A Mercedes Benz E-Class automobile gets better diesel mileage than their much smaller B-Class with the same sized e...
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Sounds "fun", Romy. I think the late (recently deceased) James Bongiorno contributed the lion's share of ideas for the Constellation, although who can ever be sure what actually makes it to market. Maybe Bongiorno's own (much cheaper) Spread Spectr...
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I have an anal fantasy of a full silver path from the cart to the grid of the input stage.This brings me to finding an ambitious silver wound SUT. There is Slagle who can make it,but I'm inclined towards amorphous/nanocrystaline core, so there is Lun...
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Thank you for illustrating problems with the "approach". Now that your response has become part of the dialog, I remain hopeful to get some ideas for a "simple" phono stage that might not choke up on Bruckner or Wagner with battery power, and I do t...
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First the other customers of PP that are having a hum problem are NOT my customers and use different components than I. Second it is not just the turntable motor but also get the hum from the phono stage when plugged in. Again plugging these componen...
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Hi Romy,I feel very pleased for you. I was always somewhat puzzled by your descriptions of how you felt the S2 sounded, particularly between 600 and 1200 Hz. My experiences with a few different horns but always with a good quality SE amp were invaria...
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Hi Guy, I know what you mean; this phono stage really should not work well at all. I mean, voltage doubler, 3 stages of 12ax7, feedback, cathode followers, garbage looking power supply shared tubes for stereo...mortifying isn't it! These ...
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Not expensiveSmall sizeIrrelevant look and appearance ;)Don't know about the other specs. It would be easy to pull it out of the box and change to a bigger one with more inputs.I had to change the tubes, which were a bit microphonic, and the damn uns...
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Thanks for the comments Romy. Would appreciate pointing out where the schematic is for the 7788 phono preamp or even better your friend´s 7788 mic preamp schematic. I can use the phono stage circuit minus the RIAA as a starter and th...
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Sorry, I have a better understanding of the purpose of this exercise now.Are you making 2 new platters or is one to be the existing Micro Platter?Given that your RX 8000 appears to have a platter made of phosphor bronze (gunmetal) what is your s...
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Yes, of course, agreed and point taken. I am/will be conscious (at times) of all those things as I listen, and I remain a musical omnivore. I am pleased, though, as I mentioned, because this is the first time I have had suc...
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Perhaps I should have mentioned before that the K&K is another spin-off of the well-received Arthur Loesch RIAA network. Also, the K&K's gain scheme is based on "classic" microphone circuits. While I am not say...
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One thing I have noticed a lot with gear that "aspires" is a ""rubber band" harmonic effect, with +/- higher or lower harmonics in preponderance as the dynamics/complexity changes. There is also the effect where the [am...
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It's a MM/MC phono stage which at maximum gain provides 74dB. The price 329 GBP, higher if ordered with dedicated PSU, but that price includes "wallwart" AC transformer. You can take a look here: http://www.trichordresearch.com/dino.html They do...
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Roman,> Any IC-base RIAA corrector should cost $30, with no expiations.Now now.... My "Analogue Addicts Phono Stage" is Op-Amp based and requires at current OEM bugetary pricing in 1000pc lots of $12.25 each. Add Tinfoil & Polystyrene Capacito...
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How ironic that I finally got my phono running through the ML2s, and just as you say, it was not all it should be. In fact, I would have to say at this point that I am getting better sound from my crappy CD player, which I u...
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All the research and theory; all those exotic, expensive little bits and pieces; too bad there's no way to tell if a cartridge will work until you try it. And then there's precious little you can do to fix it if it doesn't.In plotting an end-around,...
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Thanks for the tube gel sockets/absorbers hinting, Roman... Thomas had to use such a vibes taming mandatorily, being both 801 AND 437A tubes rather microphonic prone...Using his clever design... ZUT! Completely silent... also, unfortunately, he had t...
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The "lack" of HF is definitely one of the wonderful things that makes one think of spending 30K on a phono stage. Glad to hear you are "suffering" a similar "dirth" of HF [noise] with your DIY corrector.I wasn't going to say anything, but I won...
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When the AC and the recording are good, the K&K tracks big choruses and piano fortisimos cleanly, as well, the first time in my hi-fi experience I have had a phono stage that can do this. The trouble with the really big stuff is that i...
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Bud, you may have read some of my babblings about stacking ground planes and stray current attaching/backing up all over the place; it's a personal fetish. Not to mention the fact that getting the ground "stacked" correctly is almost impos...
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Of course I don't know if this also applies to your other cartridges that are working correctly through the same phono stage, but the VTA/bad electricity "problem" is peculiar to long line contact styluses. And as I also noted recently, po...
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hi rony!sorry for the late reply, my job....i did not start to build the horn, working on a phono stage for a friend. will start to build the 60hz horn in about 2 months. all calculations are done, should be no problem. will be made of layers of plyw...
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Romy, this whole report is just too interesting to wait for installments! I love it that you have found a way to "work with" the "effects" of the APS. But now I wonder about and I hope you will clearly address:Whether you use all com...
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Mats, believe me, I'd love to get off the frickin' grid altogether. But if I'm looking at >20 car batteries just for the K&K phono stage, then how many angels will fit on the head of a pin? Ironically, the K&K also uses JFETs.....
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