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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="anthony"]Thanks for your
insight Romy. I can see your point about not needing to worry too much in
the DSET about coupling cap performance at higher frequencies but I would
imagine that the crossover filter caps are quite import at t...
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I’m sorry, I’m not getting you. Where did you use those caps and what values/voltage do you use? I never use any Cardas caps. Their cables are notorious crap, why do you feel that this caps should be better?...
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It is with great sadness that Stella Inc. and Zephyrn inc. announce our
mentor, colleague and former-CEO Hideaki Nishikawa passed away on the
morning of 28th June, 2023 surrounded by his loving family. Hideaki was
...
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Below are some images that show the locations of the various filter caps within the amplifier chassis.The big cap for the First Stages is located directly below the 6E5P tubes...The big filter cap for the Bass Channel is adjacent to the Bass OPT (pee...
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Recently there is a lot of talk amond the audio hoodlums about the reported benefits of the V-Caps capacitors.
http://v-cap.com
They have good press and good feedback from DIYer and manufactures, the web sites that sell them push the “right button...
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[quote user="Romy the Cat"] I do some very interesting experiments with Rohde & Schwarz tuner. Dima and I have discovered a way to use the Schwarz without the wide bandwidth amplifier, driving the Multiplex Decoder from the Schwarz’s preamps. Bas...
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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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Marc Henry is still behind it and has a much lower cost version than the Grande Castine.https://www.kornhent.bzhThe finished speaker according to the website now costs €9,800 pair. What an aggressive price! Unfortunately, I cannot say if it has the b...
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[quote user="drdna"] Actually, I believe they can be tailor made to your exact specifications, which at that price they should be.[/quote]
It is not a thread about cup but I still….
This is always an interesting question to me – where is the thres...
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I think what actually happens it that the dielectric, when it gets most fully discharged, simply takes some time again to get 'FULLY' recharged. The perode inbetween will make the loss angle (or power factor) become a lot worse. This means the caps' ...
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[quote user="zako"]Recardo,,,,its obvious you dont know how to read...soon all schools will also drop cursive writeing,,,how will the kids place the signature on a document,,,print it? Your luckey a didnt write in russion,,,offensive would be if i ...
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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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[quote user="anthony"]
One question that I still have regarding the
L-Pad on the MF Channel is why you did not lose more gain at the filter before
the MF driver stage? By my reckoning a resistor change here would shunt
more signal and you would ...
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Decoud (and others), where do you source big Nichicon caps, pref. in EU?I'm slowly preparing to attack a Staxquiades - a mastodont Milq inspiredamp to power Stax headphones (PP 6E5 DC to PP 2A3/300B/EL34). I need 10.000uF/500V and 10.000/350V caps.Mo...
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Yes, the crossover looks fancy :) More than that it does the job. The vacuum caps are only for the tweeter and the upper-mid beryllium. Still they are bridged with micas as they wont do much alone. Adding vacuum caps smoothens the transitions and sou...
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Well, Kevin Carter says he's had no trouble with his own Big Cardas parafeed caps, and his caps have been in service for 3 years. He did not say anything about anyone else, but he did suggest there are plenty of other likely susp...
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I'am not a big fun of the entire parafeed idea as I feel that it is a way a duplicate of DC blocking but anyhow: if your preamp uses it then what are you problem with that parafeed cap? You were writing about your changing and bypassing different cap...
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As always I tend to play around, experimenting with components in my equipment a little bit. I strongly believe not enough emphasis is placed on topology and the physical layout of the circuit, as sometimes people forget that a circuit is a phy...
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Sine recently I got accidentally (though as I feel that it is sp far justifiably) converted into an idiot-builder I kid of hunt for certain things… So, he it comes... I recently grabbed a run of large “never available” Electrocube 410 Polystyre...
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Remember the death and "re-birth" (via good electricity) of the big Cardas caps? Well, it finally got to where things were not made good enough anymore by good electricity, so I went on the hunt again. This time I settled on Sonicaps from Sonic Cra...
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Below are some images that show the locations of the various filter caps within the amplifier chassis.The big cap for the First Stages is located directly below the 6E5P tubes...The big filter cap for the Bass Channel is adjacent to the Bass OPT (pee...
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We know that speaker surrounds are subject to memory effects. Is not playing the speaker (keeping the voice coils warm and surrounds elastic) not the big part of having to warm up the system?With power supplies containing modern diodes, caps and resi...
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[quote user="Bud"]The sine wave actually looks quite good no hint of saturation, clipping or wave deformity. Only a single trace, rather than a twisted rope. I suspect that when placed under a load much of the "broken" curve will smooth out. I would ...
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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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I too have thought a while about exactly this... there is something that troubles me deeply though about this approach. I have a theory that too small a cap may not work out as well as one might hope. Now, shall I do a Romy and delay revealing my tho...
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How about lead acid batteries :-)Only half kidding - they would be cheaper than the caps and just think, you could finally ditch those AC power troubles away.Also the amps would adore the super low impedance power supply... Still, what with that enor...
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OK, good luck with your experiments. Be advised however that if you use capacitors for high-pass speaker lever crossovers then those caps need to be aged. The amplitude of this effect wary from cap to cap but all of them in one way or other would ne...
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[quote user="Romy the Cat"]Brian, and how do you find your MOSFET behaves compare the 12AX7-based cathode follower?[/quote]Romy, I have yet to try. Only got them on recommendation very recently. They're cheap enough to try in a B9A plug-in without al...
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Paul, in my view the air-caps as an ultimate cap, the ultimate by own intrinsic topology. It is particularly the case for the 834P- like application as in there the cap is not biased by high voltage DC and gets constantly re-polarized. You see the pr...
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I have reason to suspect that my beloved large Cardas couplers have continued to loose HF past the point I described as "settling". HF is no longer correct but rather attenuated relative to LF, and clarity has begun to suffer, too.I will ask K&...
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