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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy, would you mind elaborating on specifics of your power supply? My Bidat is going to John in a couple of weeks and I am finalizing my thoughts. Thank you....
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decoud - thanks for the link, nice and minimalist,but as minimalism is no longer part of this project I need Unfortunately a more complex power supply.Romy -I'm building a full range amp. But...I need a small foot print so it will be high and relati...
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[quote user="Romy the Cat"] There is no aspects of minimization
of the inductor size. You can go to 30K, or 50K, or 100K input LPAD. The LPAD (which
is not inductive switched attenuators with good resistors) anyhow sites behind
the filter, so the ...
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It looks good to me. As you can see I have left plenty of room to add a couple of more channels.The bottom level contains the power transformers and relays. The diode bridges hang from the the middle shelf and the chokes and filters are on the top ...
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Well, I have little comparative experience of this cos the required chokes get huge and expensive, but some people I trust swear by low DC resistance chokes; they feel that this parameter is so important that they will sacrifice inductance to achieve...
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I have a preference for making the power supply a certain way and using certain types of components. If I do that and am consistent about it, I can get better results from some of those old tubes than I can from the more recent types. But hearing one...
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It is kind of done for one channel. It does not look sexy by I care less about it at this point as the PS sits at the bottom shelf of my double-amp stand and practically is invisible. The layout is not perfect as I did not want to drill a lot of new ...
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Well, the subject of capacitors in that PS should be resolved. We discussed it a lot with Dima and he feel that I am fool all my idea to try in this supply “minimum capacitance”. He actually does not believe in small capacitance, he has a vision how ...
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I am far from the best person to comment on it but your biggest problem would be the (huge/gigantic) power supply. And I confess I do not know if it is possible to parallel more than two output valves on SET fashion, I never saw it but the ultral...
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Dear Romy, your adventures with PurePower appear to be frustrating. As an alternative, have you considered contacting the equipment maintenance department of a local hospital to discuss equipment that they use to ensure pure power to instrument...
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I have often thought that the necessity of a UPS comes from inadequate power supply design. Sure it is easy to buy a product to insert between the audio system and power line but at the end of the day, are we simply giving our power supplies an easie...
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Romy, thanks for the info on the chokes in the fullrange Milq.Today I have ordered more Milq parts this time for the power sequencing and bleed down. I decided to go for the relay sequenced bleeders for all four power supplies and figured I would be...
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I am looking for a good external power supply for ATX motherboard and Sotm pci to usb card.i need 12v, 3.3v , 5v, -12v , 9vsometimes i think if i use CEC TL0-X power supply it may help but i did not measured it's output voltage.CEC TL0-X has 4 transf...
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Dear Romy,I do not know who uses the PowerStation75 so I cannot say whether it is helpful. I use the Powerware 5115 UPS boxes for managing the mains power supply [details on www.nps.com.au under Products and Line Interactive UPS (Corporate...
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I was slowing mingling the conversion of the power supplied of my second Super Milq from 3 channels into 6 channels and I ask myself: is anything in that amp is made in the way that would allow me to close it up and never review it. Sure if I move in...
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Good imagery, Amir. Sure, this can be pretty compelling for big works. Since we aren't ever going to get "everything", I guess we have to prioritize, and/or "settle" at some point, unless one simply wants change for its own sake. Regarding the "bound...
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[quote user="rowuk"]The subject of line filters and uninterruptable power supplies is one that has been pretty free of amateur DIY myths. No one seems to know what makes one sound good or bad and when. The subjects getting attention are IsolationReco...
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Dear Romy, taking ultrasound equipment as an example, there would appear to be much in common in the operation of ultrasound equipment as with a sound system. There is analog signal send/receive, conversion of analog signal received to digital ...
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Dear Romy,The UPS units are being used in their normal way, as line interactive. The voltage waveform supplied by the Powerware 5115 is a sine wave. This is described briefly in the manual and was important information for me pre-pur...
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Romy wrote:"... I can’t open PDF file..."Here's the part of the Manual that covers design features and specs (no circuit diagram available):IntroductionThe CA10 is a 10 watts per channel Class-A stereo power amplifier capable of great musicality and ...
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[quote user="jp"]I was looking into the power supply situation with my DAW and was wondering what viable options exist out there. Currently, I am using an internal 600w pc power and cooling unit. Apparently there arent many out there.&nbs...
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The system starts as a commercial multi voltage smps unit, 48 volt output from Meanwell.I place this in a box because I have to equip the unit with a multiple pole filter card.The output is fixed, 300 watts and connected to a dc filter board equi...
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I was looking into the power supply situation with my DAW and was wondering what viable options exist out there. Currently, I am using an internal 600w pc power and cooling unit. Apparently there arent many out there. One I found wa...
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[quote user="Romy the Cat"] [/quote]I really do not know what is going on and how to explain the phenomena; I just dump it to you “as is”. Because of multiple reasons I decided to drain the Milq’s power supply when the amp shits down. I have a...
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Hi N-Set, I am three quarters of the way through assembling the first power supply to power-up stage so I have not tested the "singing" as yet. It is something that I have thought a lot about. First and foremost I wanted a steel skin around the pow...
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Dear Romy,Thanks for the information that the sinewave form is only generated when the battery power takes over. The pdf is a good article. I did more research today and located a schematic which backs up what you have said despite t...
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[quote user="peter foster"]The UPS units are being used in their normal way, as line interactive. The voltage waveform supplied by the Powerware 5115 is a sine wave. This is described briefly in the manual and was important information fo...
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Dear Romy, regarding your efforts to solve variations in mains power supply, there has been an interesting thread on RAT related to the use of toroids as power transformers that morphed into a discussion about the level of DC offset in mains power su...
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I usually do not cruse across DIY forums unless someone folks about me. Here it was - at some Russian DIY site they translated my article “6C33C survival guide” that made me to see what they have in there. One article from their site attracted my...
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The preamp has the classic tube regulated power supply using 5R4, 6AS7, 6SJ7. It is transformer coupled output and has no capacitor in the signal chain, the gain is about 8db, so it is not a buffer. For convenience, it does has a remote control. It i...
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