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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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[quote user="Paul S"]But if I leave them down for a while, it might take 4 or 5 hours for them to get good.[/quote]Yes, it is exactly it. It is OK during the winter - sometimes run the power amps for days, but during the summer to run all 12 Milq’s c...
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Yes, Be, thanks. I have revised the Milq’s start up sequence. With the new scenario when the amp shuts down the B+ will be sitting in the power caps. It does not hurts the tube as they are cold-closed and do not care about anode voltage. ...
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It shall not be $50 per piece. You need to go to Electocube web site and they have a very good inventory find tool. It does shoe the actual inventory belong each of their retailer. Then call to retailer and ask the price, it will be about $5-12$ pre ...
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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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yep-- i always measure first to get as close as i can get to a matched set (within a % or 2 at least!). luckily, for this application, i got 4 extras.. so i should be able to get close, and for all the sub- 1uF caps i have around for all the ot...
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It does not sound right to me. If I am not mistaken then it has 2 X2uF caps. What 10uF coupling cap can do there and what 1000V cap does in ML2. The 1000V cap is almost $6 more expensive – Lamm would kill himself but would never allow such a waste of...
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Well written article, I think, and he is good enough to share right away that he is a "vintage" guy, and an AN guy, which helps me contextualize his observations, even though he does not reveal the nature of the $$$$$$ "ultimate horn speakers" (...
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[quote user="valves"]Hello to everyone, am new to the sight. Been reading for a while and decided to mod my 834. I've had the unit since '96, purchased new from the local dealer. I have noticed a few differences from the schematic, the 220K load r...
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[quote user="be"]Very interesting "review" thanks.The 150D is possibly not the most relevant comparison, it does not seem to be a high quality product since its ESR values are not even mentionned in the data sheets.Tha T97 series: ( http://www.vishay...
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Adrian, how disappointing.I have heard effects like this from digital processing, where "space" is not continuous but only happens when "there is an event in it", like the Hindu "breathing" of the Universe. Stations certainly pro...
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Of course you know,Romy, but others may not know/remember that Nichicon have always had great specs, and years ago they were a "secret weapon" in the high end.But lots of the DIY guys are computer geeks in their day jobs, and The Story is that Nichic...
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Romy, I have futzed around with caps more than I should have, mostly because they so obviously affect the sound, no matter where they are in the circuit. In general, it seems like the best bet is to keep the values as small as possible, an...
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Dan
it is a slippery subject and I do not think that anything could be “right” or “wrong” in there. I generally do not “voice” drivers with section of capacitors. However, but it is not mean that I do not see difference between the capacitors ...
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… very close design-vise and sound-vise. From here I need just to put a 3-4dB voltage divider in the grid of the driver grid and to found a really good sounding filter caps that will be able to handle 450V. I have some metalized polypropylene but I d...
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You had that glorious sound with the 40 year old caps in the B2's and the Tannoy crossovers. Do you really want to move away from what they produced in your system. A good way of testing new vs. old caps would be to replace the tannoy original crosso...
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[quote user="Paul S"]But the big-capped K&K is NOT immune to power problems, by any means![/quote] It is very simple to test how much a given audio component is immured to power problems, in case if it has “big-caps”. If your K&K does have a ...
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That suck, it was two days as my playback shine at full glory and then my bass amps blew up. It has heavy noise from one channel and sounded like it self-arouses like crazy. It turned out the one of PS large caps got burned and stopped to filtrate th...
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OK, I did the experiments with my phenomenal, “hard to get”, polystyrene and foil Electrocube 410B large caps. They were very good but I still would like to stay with high quality polypropylene caps. The best polypropylene was just less Hi-Fi-ish, le...
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Dear Romy,Thanks a lot, I've forwarded to him your answers, let's see what he says. I have tried Mundorfs in some critical places in the integrated tube amp I'm using now and they are pretty good, expensive, but not at the level of those Auricaps, Ho...
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[quote user="anthony"]Can you remember what caps
you used in the HF filter? They are certainly not standard values and I
do have a memory of you trialling air caps. [/quote]
I presume you ask about the F amplifier channel. I use air
caps 530pF...
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"Do not use plastic caps ... but go for a tandem of electrolytics Nichicons with active biasing."
Hi Romy,
Please excuse my ignorance. Can you please clarify what you mean by "active biasing" -- in relation to the caps?
I'm thinking to get...
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Yes, it is a common deal and it is possible very frequently to get a bunch of the Vitamins Q for very little money. Thanks God that no one from Sprague pay (paid) to market-makers to drool about the Vitamins’s sound and therefore the wide majority of...
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It is nothing to do with Wisdom. It is my principle of application of “cost” as a common sense design tool. I do not bitch that Duelund caps are expensive. I just try to find a rational solution for using them that would embrace their price. My ...
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It is looks like a small company in Germany that makes some kind loudspeakers and among them there is one looks like ambitious project: 5 ways installation:
http://www.horn-kultur.de/englisch/prod_mk5.html
...
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[quote user="Thorsten"]If you do, do seek out old Air dielectric AM tuning Capacitors. You only need 110pF & 330pF, both can be found suitably. Once you tuned the RIAA to perfection simply superglue the shaft in.... I used to use that trick in pr...
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This is a signal cap?Regardless, I'll bet we all use either Blackgate or Elna Cerafine. I like the latter, most of the time, and they are OK on cathodes, if you must have a cap.Apart from the high-pitched "rushing" (if the circuit is prone to i...
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[quote user="Paul S"]So, does anyone know anything about "good" sockets for the ML-2s? I forget when and where I saw some sort of boutique Teflon jobbies that are pretty darned expensive. Maybe DIY Hi-Fi, in Hong Kong? Also, although Teflon is a ...
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[quote user="PurePower"] In the world or audio you learn new and interesting facts every day. AC caps (ceramic, electrolytic, polyester and polypropylene metallized foil types) can buzz at various frequencies. This is not nonsense, and is quite...
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[quote user="N-set"](feel free to re/move this post to the electricity thread)As the power supply I'd regard everything from the power generator in the power plant down to the actual load.Why the power transformer should be the cutting line? I do hea...
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