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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hi N-set,Thank you for information.What kind and producer of capacitors do you use?Regards,Alex. ...
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The decision to use banks was my builder's: whether it was availability or other reasons I have not asked. I want to change to single capacitors because I like limiting the failure degrees of freedom, so to speak....
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The electrolytic capacitors in the woofer low pass circuit are certainly dead. They look perfectly normal when old, just lose capacity in a serious way. The NS1000 had ferrite magnets that don't need remagnetization....
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I have read once again the explanation of the Melq's project and find 2 interesting things:- load for full range amp should be 1200 Ohm - that is very good for the tube and provides good damping,- capacitors in case of LF channel - 20000 uF (!). The ...
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Hi all, Just joined the cat house... funny seeing the mention of some old stomping grounds here... like Bendix in Red Bank, NJ... they were one of my accounts back in the late 70's. As some of you may know, the U.S. Army's electronics center was...
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But here it is. I made this monoblock fit into less than a square foot. It is tight. I use Hammond iron throughout. Their stuff usually works pretty good for power supplies. I have some photos at my blog. [img]http...
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Hey Bud,Are you saying that the battery materials are less limited in fast dynamic potential energy release than the capacitor materials? I thought batteries had far greater materials limitations compared to capacitors in regards to fast potential re...
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[quote user="Thorsten"]I have kept the 600R arrangement, but I cleaned up the circuit a lot. The new stuff was posted over at the AudioAsylum, not a place you are terribly fond of. If you still have the Phonostage you build it might be worth rolling ...
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The Other End of the Single End: Modern Horns Done With Flare An Interview With Dr. Bruce Edgarby Dave Glackin, printed in POSITIVE FEEDBACK. 1996
Dave Glackin interviewed Dr. Bruce Edgar in his home, prior to the 1996 WCES. A follow-up on the speak...
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The “Enjoy His Music” published the old celebrated by many DIYers Herb Reichert’s article about his 300B amp ideas.
http://www.enjoythemusic.com/diy/0709/flesh_blood.htm
I read it before but reading it now, after a few years again...
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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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I actually woke up today at 6AM, check all settings on my arms (after a few month of not working), demagnetized the needles and was spinning records all mooring. One of the benefits that I got with new phonostage is that the grounding patters for all...
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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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I thought I would look at the Memory Player specs and was surprised to be greeted by what is in my books an obscene price list. But it may be quite cheap for others. These things are all relative of course.Best regardsRakeshThe Memory Player 64 T...
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… but there is no one to ask how mater it is…
[quote user="hagtech"] Seems to me a small film cap added to a large electrolytic solves most of the sonic issues people complain about re the large caps.[/quote]
Hm, I do not know. I think if good caps...
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Rob and Romy the Cat,Thank you for inviting me to discuss this subject. Allow me to reply only to the main points raised, due to the present overload of work. However I will try to answer, later, to any specific question on the subject. First : - My ...
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[quote user="Antonio J."]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 tho...
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First of all, guys, can you name your posts on more identifiable way?
A few comments I would like to make. I heard that the new revision of PP2000 has fans that do not run at full speed all time but have the speed of fans driven by thermosenso...
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[quote user="scooter"]Sorry about that. Vince has good days and bad days; sometimes he just does not get it and you did correct by running out. Given his background in 80s solid state amps and your interesting piece of gear I thought he would have ...
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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. Basically we put two stages wit...
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[quote user="cv"]I wonder if it is the reactive components (blocking caps etc) that are to blame here, seeing as much of the problem is in the lower bass.[/quote]Chris, what you said made me to think.
Look, the output of Bidat and a SS buffer that b...
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Romy, I am aware of your well-reasoned prejudice against audiophile/boutique parts, and I agree that they are by-and-large the first recourse and last refuge of Morons.I thought I'd chronicled this phono stage stuff so far, but obviously not in ...
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Domidaw, you wrote: The photo shows the capacitor c10. Its minus is connected to ground, its plus goes to the output transformer,According to the schematic it is the grounded (minus) end of C10 that should connect to one side of the output transforme...
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[quote user="Romy the Cat"]
First of all, guys, can you name your posts on more identifiable way?A few comments I would like to make. I heard that the new revision of PP2000 has fans that do not run at full speed all time but have the speed of fan...
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Thanks for the info Meiko41 !
At what load (the percentage on the display) does the noise from the capacitors becomes annoying ? Do the fans stay always on or they kick in when you reach certain temperature ? I guess the fan is not an issue if...
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I called to Audience and I spoke with their sales manager.
It was very little that I did not expect and I let him to run his sales pitch. Or course it never intended to be a commercial product, they did it for own home use but it was so good ...
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Hello to all, After following the comments of Romy for some time (have learned a lot, thank you), I would like to ask a question on this subject.This circuit is built with resistors, diodes and capacitors. Could someone elaborate how it can produce a...
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Hi Wellington and fellow Micro-Seiki fans,I will have to agree with your findings about the CU-180 as well. I have tried a stainless steel mat with similar results.I own two RX-5000's and cant't stress enough the rebuilding of the power supply with n...
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Measet,The bearing oil on the RX-5000 should be replaced with a good low viscosity turbine oil, Zoomspark works well. When opening the bearing you will notice there is a steel thrust plate that will have a dimple on it, you can flip around and use th...
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Recently, I have become aware of a strange phenomenon after lifting the tonearm at the end of the run-out groooves. The record surface noise keeps going when the stylus is no longer in contact with the record. I am using a Garrard 301 with SME 3...
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