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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Well, most metals in air simply corrode over time; we all know that. And running a little current through it can hasten the process. To pick an extreme example, I lived at the beach for nearly 30 years, and ALL connections were ...
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My experience has been that tubes that run quiet and quiet down quickly and "properly" when tapped are almost always quiet with respect to self-noise and/or microphonics in use, apart from low level phono use. And most of my tubes tha...
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Romy, You make all very good points. I probably shouldn't call the front of the driver a phasing plug, because actually the long wavelengths really don't care much about the shape of the exit, they will just pass right through...
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AlloI didn't say this explicitly but the audibility of the power supply might support the theories about the flux modulation being bucked by the combo of coil and PS.I mostly wanted to mention the layering idea and - ah yes, that was it: see if you c...
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I think I have had enough time with this phono stage now to make a few remarks about it. In keeping with the spirit of this website I am not recommending this component, just reporting on it.
I got my unit off AudioGon after keeping my eyes pe...
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[quote user="Saturntube"]Well this is the RCA LC-9A It is identical, with an extra cabinet for an 18" driver... We saw some old time reviewers going out of the room laughing and shaking their heads! We thought they were saying, yes a 50 year ...
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to reel from 7 volts or 700 volts is equal to the reel. should rather ask why or why 7 or 700 volts. should be asked how you intend to use the horn driver, you should ask graphs of frequency response and power handling. build a field coil driver is ...
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Hi Romy No offense, i really meant we all have our prejudice due to experience. I dono the RCA but i think the old ones didnt have slits or?You can actually see it leaning towards the screen here on that explosion-drawing how its built.Look at the ...
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I must say I've never came in to intimate contact with cables and avoid it untill I can, so yes all my arguments are theoretical.By amplifying I ment of course voltage, not power and ass-u-med that the external noise as well as the cable distortion a...
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Hi Romy,thank you for your answer. On weekend i will rebuild my amp for the 6E6P-DR. You are right, the tube datas shows that pin 8 is a screen. On D3A pin 8 is Grid 3 connected to screen.I will try it with pin 8 lifted and connected to ground. I hav...
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A pleasant film about the RCA's Boston s recordings and record production from 1956
http://www.archive.org/details/SoundAndTheS
RCA Victor presents Sound and the Story, copyright Radio Corporation of AmericaThis movie is part of the collect...
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I have a guy visited me today who have high-voltage version of RCA 1428. I asked him to provide is feedback what in his view difference sonic between his 1428 and my S2 driver. Of course it might be large difference in the way how we use our drivers....
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As one of the perpetrators, I should chip in, I guess.Lower crossover for the RCA was 430Hz. All slopes were 4th order. I did try shallower, but we preferred the steeper slopes and it does make it easier. With a lot of work, I think shallower slopes ...
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Hi all
The WE 555 is IMHO an interesting driver, made for a very spesific use,
which is driving a "full-range" horn in the theatre.
As we all know, the wide range system with Jensen 18"woofers and Bostwick tweeter came later, at first the 555 an...
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[quote user="Romy the Cat"]Stefano, it is funny that you have mentioned the “an old, little cinema in a small town”. I do not know if you did it unintentionally or you meant as some kind of sarcastic self-deprecated joke. What I mean is that the init...
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I don't mind talking about the "soul" of tubes. In my experience, the Kron 2A3 is vastly better Sovtek, etc., and better than NOS RCA 2A3 in my opinion. It has much more "soul" -- to the extent that listening became rather dull without it. I was shoc...
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It is imposable do not love Giacomo Puccini. Would it be possible do not be in awe of Tosca? Among the numerous performances of this opera that I have on my shelves there are many great. The De Sabata’s La Scala performance from 1953 with Callas, Di ...
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Hi Romy,Well maybe it is that the answer. My mono is pierre clement eb 25 broadcast cartridge, the original not the contemporary remake. The output is extremely high, almost overwhelming my phono amp I have the impression. Also, it tracks very heavy...
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[quote user="Paul S"]I have a few old 6-eyes that are among the best-sounding LPs I own. I cannot say this of the older "solid label" Columbias; but perhaps they just want more careful VTA to get the best from them? The older LPs were not yet made o...
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I have been adding and reconfiguring gear recently and I will be needing a 6' digital cable very soon, when I add batteriy power, so I just went ahead and bought one of the "Synopsis" remainders Romy mentioned.This $5 discontinued Belkin blue ca...
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Still being pissed that my second arm/cartridge does not sound as good as my first one I decides to get another phono DIN-RCA cable – I have my reasons to be suspicions now about my kinky Micro Fat cable. So, talking about different manufacturers som...
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Over 10 year later, I finally "finished" and installed a shielded version of the above cable for the short run between my phono SUT and my phono stage, replacing the nondescript Placette cables I've been using there all this time. As anyone experien...
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[quote user="Romy the Cat"] Tim, it is all very interesting and I would like to learn about the Proteus’ inner wire juts for a sake of general education on the subject. However, I would not go for a duplication of what Purist did. Doing it you will s...
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Romy,To clear up a few things about the Kilimanjaro RCA1428 clones.The B&C DCM50 is a modern, neodymium clone/copy of the RCA MI-1428B. It was designed and built by B&C in Italy after Bill Woods of AHhorns talked the CEO into it. The DCM50 is...
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Stereo is only as good as the width of your head,,,Both visual and audio...Of course locolazion diminish,s as you sit back further,, Hall ambiences will eventually take over...If you are the conductor you get a different perspective,,,And PERSPEC...
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I find this project so fascinating. I find it particularly interesting because one of my first experiences of good sound involved a field coil driver. Many years ago my grandfather bought an old hammond chord organ(predates the b3 and other...
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The transformer in this preamp was given from a friend who want to learn how to wind transformer. If I remember correctly it started out as UBT, they were bought (when UBT was operating in the Silicon Valley) at the company swap meet. They were rejec...
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OK here is another take of the same section. This time with the Aesthetix Callisto. I set the Tascam's inputs to "bypass" and used the volume controls on the Callisto to attenuate the signal to about the same level as the previous recording...
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This very musical masterpiece "owns" me since my boyhood, as my mother used to listen to it, as I learned about its title getting older (without NEVER knowing who performed it); sometimes she was reading in dimmed light, a book on her laps, more ofte...
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Rich,I have been experimenting with true Litz magnet wire (we use it in our transformers occaisionally) and have discovered that you can use discreete amounts of plastic dielectric material, spaced down the length of the wire, to "tune" the dynamic c...
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