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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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As all the parts for the full range Melquiades are making their way to meet me,I'm faced with the need for a 12v-5v service power supply (fan , hour meter, LEDs ).How to approach the issue ?1.buy regulated switched (and cheap) power supply and be don...
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[quote user="Paul S"] I have stated several times that the ML2s are less sensitive to bad electricity than my phono stage, and this is true. However, this is not to say that the amps are immune to bad electricity. In fact, it is the effects of bad el...
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[quote user="morricab"] The one thing that the Lamm ML2 does differently than nearly all tube amps is regulation of the output stage. They do this with the 2nd 6C33C that is on the chassis. Even the KR amps don't do this and I think it is...
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[quote user="rowuk"]I am always a bit hesitant to buy into "listening descriptions". I am a musician and am confronted every day with Sound bias - attraction to what we are accustomed to, expectations being confirmed. We are creatures of habit and mo...
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Paul,
I re-mapped your post to your older thread; I hope you do not mind…
Anyhow, I find absolutely nothing in the older ML2’ sound related to L1/L2 “X-Factor”. As I suggested in the second post of the flowing thread:
http://www.goodsoundclub.com/...
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Morricab,
I do not know the “truth” and what I said are pure my speculations based upon what I hear and what I measure.
Yes, Lamm drivers at 310mA quite hard but do not forget that his objectives, besides everything, were to get out of his SET max ...
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I have modified my system to make sure it has a single dependency on AC. Until now, everything was plugged to PP except one regulated PS for the PC feeding the DAC. This PS in not on PP because it generates lots of noise, and plugging it to PP inject...
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I heard the 'cole' LCR phono by the hifi supply recently at a friends house and it sounded ok, the Allnic 1500 that I am using at the moment is the best phono I have heard, and the price is extremely reasonable for the design, valve regula...
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Hey. I have not seen it mentionned here, have you tried, or even considered regulated dc-current supplies for the heaters?Should have the sound quality of ac-voltage supplies combined with the lack of noise of the dc-voltage supplies.??http://www.ten...
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[quote user="KOTriode"]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...
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I chanced upon an interesting PSU arrangement for my 5842. I run a valve regulated powersupply at 210v and then drop down to 160v with an un-bypassed 8uf oilcap. Any more capacitance or bypasses seemed to be a step backwards in terms of pleasure. A n...
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[quote user="guy sergeant"]Nice to see the glow tubes. Shunt reg for the driver or something else?What type of rectifier/smoothing do the amps use?[/quote]Nope, the both B+ are choke regulated. The positive and negative shunt regulators used in bias ...
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Romy Hi, I just didn't want you to think that i was just another hifi dealer , I just really liked the speakers, re the Allnics innards I will forward your question to Ralph at Cessaro he is the international distributor, I do k...
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[quote user="drdna"] The vast majority of things that give us information about a performance of a musical piece are preserved or lost in the recording process, not in the reproduction by the audio system. [/quote]
I would very much argue this. I wo...
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[quote user="coops"]Romy Hi, Ralph installs every pair of speakers ,I know that it can take a week or more to install and optimise the larger systems. There are plans for amplifcation , he is working closely with Mr Park of Allnic Audio. M...
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Twogoodears, MINGSU or whoever else why know, I have a question to ask As I understand GOTO use mostly titanium diaphragms but they calm them by plastic surround. This FRP technology the used nowadays in all GOTO form from Fiberglass Reinforced Plas...
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The fullrange Milq will be built in an oversized chassis with the intention of adding maybe two or more channels down the track and perhaps some line level crossovers. So I will up spec. the mains transformers so they can handle a larger draw and wi...
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Romy Hi, Ralph installs every pair of speakers ,I know that it can take a week or more to install and optimise the larger systems. There are plans for amplifcation , he is working closely with Mr Park of Allnic Audio. Mr Park has some...
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[quote user="Cosmos"] Anyway, as the description on our site on second paragraph says, the third 6C33 located at the back, is used as the pass element of the regulator (controlled by solid state circuitry) providing 220V with 100uV of random noise &a...
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Hi Cat,It seems the 6e5p is driving the transformer directly. I've used various versions of even simple mosfet followers to good effect at the headphone level, but never considered using a speaker level transformer. Did you and Dmitry cons...
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Hi,[quote user="Romy the Cat"]All that I need was some kind of vacuum tube buffer that would have no-gain of a very low gain and that would be sonically completely transparent.[/quote]Completely transparent is very hard to do. Try the following:6AS7 ...
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Hi Romy,Well, I do not pretend to "know" those Rare-Gas zeners very well, neither to have "listened" (so to speak) to any. They are so low-performance devices when compared to the silicon technology that it is technically a pity, but, it doesn't prev...
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[quote user="zanon"]I'm also not surprised that your new buyer thought your SL600s were too bright. Druids have very rolled off HF.[/quote] Yes, the comment that SL600 is too bright is not very accurate. The SL600, at least with copper tweeter are ma...
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[quote user="KOTriode"] The Melquiades give me inspiration to build this 6C33C amplifier. It's on a stereo chassis that has few unique features - Vacuum tube rectifier separately for Input/Driver and Output tubes. - Regulator using the same tube ...
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There is more information about the Lamm new LP1 phono preamplifier, including the price of $33K
http://www.monoandstereo.com/2012/12/lamm-new-lp1-signature-phono.html
The images do charley show two step up transformers at the ent...
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One interesting thing about the inverter/battery is the constant AC voltage.My voltage is 122 volts 99% of the time with only a toggle up on the odd occasion and a toggle down on an even odder occasion.Since very few of us have power amplifiers with ...
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KOTriode, …no one questions the usefulness of having a regulator and the ability to adjust voltage and current independently. However, it is necessary ONLY during a design phase and sine you have figure out the optimum operation point for a given tub...
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Few weeks ago, I had the chance to visit KOtriode and listen to his system but more specifically his Preamp. The preamp use half of the 6C33C per channel (one 6C33C has two triodes). It has two outputs, one is transformer coupled output, the other is...
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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...
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