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Read the Post in new Window Read the Post in Threaded view  Post #60: DC by Paul S on 2010-11-10 
Browse the content of the threads in new Window  Thread: To drive the 6C33C... in Melquiades Amplifier  65 Replies 
N-set, I understand you do not mean to hijack the thread with the Axiom, so I actually tried to make generic and/or thread-related observations.  I don't know the 6E5P, but generic issues with specific DC tank circuits and driver and output tube stab...

Read the Post in new Window Read the Post in Threaded view  Post #43: Good and neutral by Celsius on 2014-06-15 
Browse the content of the threads in new Window  Thread: The 6E5P tube data. in Melquiades Amplifier  44 Replies 
[quote user="Romy the Cat"]Celsius, I do not know what CCS you impended, did you drive 6e5p’s plate with constant current source?*1 I also do not know/like 6e5p with battery bias. The only application that I find 6e5p suitable was the Milq-style bi...

Read the Post in new Window Read the Post in Threaded view  Post #63: Approaching the LF DSET by Romy the Cat on 2015-12-22 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="anthony"]Hi Romy, So it is time to think about the bass output transformer in my DSET.  My bass channel will be 8 x 25W/8565-00 each side set in a sealed box and will cover the frequency range below say 100Hz.  These drivers can be ...

Read the Post in new Window Read the Post in Threaded view  Post #4: A name that comes to mind by Gregm on 2007-05-16 
Browse the content of the threads in new Window  Thread: Zigmahornets Speakers: come up with a title on this topology... in Horn-Loaded Speakers  4 Replies 
...MQWT topology?(matchstick quarter-wavelength tube)...

Read the Post in new Window Read the Post in Threaded view  Post #6: Info on Tube Testers by jessie.dazzle on 2007-01-07 
Browse the content of the threads in new Window  Thread: Get, or made up a tube tester, it’s necessary in Audio For Dummies ™  44 Replies 
If you don't already know of it, here is a link to interesting German site (in English as well) with loads of info on Tube testers : http://www.jacmusic.com/Tube-testers/index.html If you scroll down to this phrase : "SHORT OVERVIEW OF TUBE TESTER FE...

Read the Post in new Window Read the Post in Threaded view  Post #10: Re: 5651 vs 0C2 by Jack 14 on 2005-09-07 
Browse the content of the threads in new Window  Thread: Gas voltage reference 0A2 tubes. in Melquiades Amplifier  42 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #6: That bizarre 6C33C behavor. by Romy the Cat on 2006-12-09 
Browse the content of the threads in new Window  Thread: How to test 6C33C? in Melquiades Amplifier  7 Replies 
The more I deal with 6C33C the more this tube amuses me. Couple years ago when I started to use a half of 6C33C for my upper frequency channels I wired right and left my Super Milq with half of 6C33C connected to right and left side of the tubes co...

Read the Post in new Window Read the Post in Threaded view  Post #1: Does tube preamplifier VTL would add tube sound to system by muddasir on 2010-07-08 
Browse the content of the threads in new Window  Thread: Does tube preamplifier VTL would add tube sound to system in Audio Discussions  6 Replies 
Hi there every one.A brief about system. Marantz transport---Acustic Arts DAC II-----Krell HRC preamp-----Krell FPB 600 class A amp---B&W 802.Previously i  had a pair of carry 805 SET amps which drived Klipsch KLF 30 any how i was getting a good ...

Read the Post in new Window Read the Post in Threaded view  Post #155: Tu-be or not Tu-be, seems Tu-be the question. by floobydust on 2009-02-08 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
 I've used both tube and solid-state rectification over the years and much is well documented for power supplies, i.e., old ARRL manuals, Tube manuals, etc.. In most cases small value filter caps were shown, as you really couldn't get much in la...

Read the Post in new Window Read the Post in Threaded view  Post #154: My attitude toward tube rectification. by Romy the Cat on 2009-02-07 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
It is only if you chose to employ tube rectification.  Many people claim that tube rectification affects sound greatly in this or that way and they are right, it does. However, it does only because the circuit is designed to be affected by recti...

Read the Post in new Window Read the Post in Threaded view  Post #123: Options, options, options.... by Romy the Cat on 2009-01-20 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[quote user="floobydust"] Some very good points here... if I downloaded the correct schematic from your site for the 6-channel Melq amp (also has the term DSET in the title) then you have created a 6-channel SET amp with built-in crossover points. Yo...

Read the Post in new Window Read the Post in Threaded view  Post #4: Tube tuners in Boston by Nerone on 2008-11-26 
Browse the content of the threads in new Window  Thread: Where are our good Tuners? in Off Air Audio  43 Replies 
Dear Cat, I own tube and SS tuners, and the ones I own now follow a list of other tuners I have owned over the past few years. My SS tuner is an Accuphase T-100. My tube tuners are a Sherwood S-3000V and a Mac MR-67. The difference between a good tub...

Read the Post in new Window Read the Post in Threaded view  Post #45: Fuse: just a precaution on 6C33C by KOTriode on 2011-10-06 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
Romy,I added the fuse recently just for protection for the output transformer since these 6C33C tubes plate current can get very high and might damaged them. Also DC coupling on this high gm tube can cause plate current to go max if something failed....

Read the Post in new Window Read the Post in Threaded view  Post #16: 2A3 versus GM70 by Paul S on 2007-01-15 
Browse the content of the threads in new Window  Thread: Lamm Industries: a special interview with a special company in Audio News  105 Replies 
Why use the GM70 apart from its power potential?  For one thing, it seems to require literally lethal voltages to become remotely listenable.  Is it really "that" linear, to insist on it?But my experience with GM70 is quite imited.  I ...

Read the Post in new Window Read the Post in Threaded view  Post #2: Opinions are like.... well, you know... everyone has one. by floobydust on 2009-07-02 
Browse the content of the threads in new Window  Thread: The DSET perspective examines the Herb Reichert article. in Melquiades Amplifier  5 Replies 
 I looked at the schematic for Herb's 300B SET many years ago. It's been copied and slightly modified by many.... personally, I would not use it for a 300B amp... then again I probably wouldn't use it for a 2A3 or 45 either (I think my input/driver d...

Read the Post in new Window Read the Post in Threaded view  Post #161: That all is incorrect in a way…. by Romy the Cat on 2009-02-13 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
KM, Very good points. There is one more moment that I would like to pay attention. The new prediction tubes are more powerful then vintage tubes. They all claim 1 extra watt because “better materials were used”. So, I wonder, if it would be possible...

Read the Post in new Window Read the Post in Threaded view  Post #1: The period DHT tubes and Swastika by Romy the Cat on 2009-04-30 
Browse the content of the threads in new Window  Thread: The period DHT tubes and Swastika in Melquiades Amplifier  1 Replies 
While my Obbligato caps are traveling from Asia and instead of finish my MF amplifier and listening it I am blowing up my steam about the amp at my site there is a subject that I would like to share. Melquiades MF DSET is made to utilize not o...

Read the Post in new Window Read the Post in Threaded view  Post #8: Anti-skate and Micro in Japan by Gibraltar on 2010-08-17 
Browse the content of the threads in new Window  Thread: Micro Seiki MAX 282 Questions in Analog Playback  11 Replies 
Hi Romy,[quote user="Romy the Cat"] I would discard the test disk truck– I never use it. Take a silent space between the cuts (test disk!) and make a needle at your operational VTF to be in stationary ay a bit more than a half record.In fact it is ar...

Read the Post in new Window Read the Post in Threaded view  Post #28: Vertical/diagonal change vs. horizontal change by Romy the Cat on 2006-12-31 
Browse the content of the threads in new Window  Thread: Initial thoughts about new/old Lamm ML2s in Audio Discussions  215 Replies 
[quote user="Paul S"] The 6N6Ps I bought are nothing "special" as far as I know, but they are all tested and to spec, according to the seller, so I will also replace my current 6N6Ps when the new (NOS) batch arrives, and I will note any changes in so...

Read the Post in new Window Read the Post in Threaded view  Post #165: Do not fix it until it gets broken by Romy the Cat on 2010-01-22 
Browse the content of the threads in new Window  Thread: Initial thoughts about new/old Lamm ML2s in Audio Discussions  215 Replies 
To crack the small-pin tubes by jerking them in tube-sockets?  I do not believe in it but you are at your full right to feel that you did it. If you cracked 6AK5 then it will very fast (a few hours) loose the getter on the top of the tube (dark-s...

Read the Post in new Window Read the Post in Threaded view  Post #3: A few more hybrid suggestions by Chirag on 2006-05-04 
Browse the content of the threads in new Window  Thread: Two-stages, hybrid, small, powerful class “A”? in Audio Discussions  23 Replies 
Hey Cat,Well..my first question would be regarding the application.  The big Melq tube is already doing the bass towers...is it not enough current?  And wouldn't a proper class A 100w amp with its low low efficiency require something like 1...

Read the Post in new Window Read the Post in Threaded view  Post #53: It is also important to know where to stop. by Romy the Cat on 2009-11-12 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
[quote user="twogoodears"] Actually a N.O.S. EC-8020 "diamond" is worth EUR 500+ ea., an STC 3A7167M is fetching EUR 750+ ea. (I own one N.O.S. sampler with original carton box, bought by chance for cheap, years ago) and WE 437A is at "only" EUR ...

Read the Post in new Window Read the Post in Threaded view  Post #30: More toys for the well heeled tube-o-holic: by Paul S on 2007-01-23 
Browse the content of the threads in new Window  Thread: Get, or made up a tube tester, it’s necessary in Audio For Dummies ™  44 Replies 
Little I know about tube testing.Here is a link to one that can do a test series on tubes at rated voltages, including 6C33 (with extra-cost adaptor, of course), and it will compare sections at once:  http://www.amplitrex.com/index.htmlSucc...

Read the Post in new Window Read the Post in Threaded view  Post #26: My old headphone amp: the final verdict. by Romy the Cat on 2007-02-05 
Browse the content of the threads in new Window  Thread: Headphone amplifiers. Baby Melquiades? in Melquiades Amplifier  27 Replies 
Over the course of the past year I was very slowly experimenting to the sound of my headphone amp. I know much more about it sound then I knew last year and I learned a lot more how to get “different” sound from it. The more amps ages and the more I ...

Read the Post in new Window Read the Post in Threaded view  Post #3: Yes, it is about my sources by anthony on 2019-04-20 
Browse the content of the threads in new Window  Thread: Valve Preamplifier for Macondo/DSET in Melquiades Amplifier  74 Replies 
[quote user="Romy the Cat"]  I do not know why Placette does not work in your situation. You do not have enough volume? If it is the case then you might have too low gains in your front end. All my front ends have very high gain: Bidat, Lavry, my...

Read the Post in new Window Read the Post in Threaded view  Post #41: The Golden 6C33C in house. by Romy the Cat on 2011-10-05 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
I unpacked the Gold Grids 6C33C that I got from Bulgaria. Upon very meticulous inspection I did not find that they were in any way different then the regular grid tubes. I did not open a tube to check it further.  It is possible that the Bulgarian gu...

Read the Post in new Window Read the Post in Threaded view  Post #2: It is not “where to get” but “what to get”. by Romy the Cat on 2012-01-09 
Browse the content of the threads in new Window  Thread: 6C33C socket types, where to get the ideal one? in Melquiades Amplifier  2 Replies 
You might try these: http://www.goodsoundclub.com/Forums/ShowPost.aspx?postID=1093#1093Still, I think Yamamoto sockets shell be fine. The material of the sockets base – would it be Teflon or anything else is less relevant. You need to wary about the ...

Read the Post in new Window Read the Post in Threaded view  Post #8: 6c33c amp by KOTriode on 2011-09-08 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
Yes, it would be very interesting to hear the difference between a 6C33C amp with and without tube regulation, but also they are too many thing to try too, ... the possibility is endless here.My recent experience with two different ...

Read the Post in new Window Read the Post in Threaded view  Post #71: Further thoughts by KOTriode on 2012-03-16 
Browse the content of the threads in new Window  Thread: A different breed of 6C33C amplifier. in Melquiades Amplifier  84 Replies 
Romy, in the contrary, it is very unfair to compare my 845 amp with the 6C33C. The main reason is the 845 amp used the best output/interstage transformer available, while the 6C33C's output xformer is pretty good but far from being best for the 6C33C...

Read the Post in new Window Read the Post in Threaded view  Post #392: YO186 vs. type 45. by Romy the Cat on 2012-05-24 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[quote user="floobydust"] Been a long time since I've been on the fora... too much real work, too much travel. Still, nice to see this particular thread resurrected. I'm interested to see if you have revisited the 45 since more than a year ago. I sti...
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