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Read the Post in new Window Read the Post in Threaded view  Post #70: Answers. by Romy the Cat on 2013-05-24 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
[quote user="Welborne"] 1) There are hexagons on the schematics marked with A, B, C ...M. What are these? Are they testing points or they carry some meaning? I can't find much info about these here. [/quote] Yes, the hexagons are test points. Do ...

Read the Post in new Window Read the Post in Threaded view  Post #69: Hello and Fullrange Melquiades schematics question by Welborne on 2013-05-24 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
(sorry, this is supposed to be posted in the questions and answers colume but I must be so stupid to have it posted here and now I don't know how to move it there.)Hi Romy,How are you!  This is Welborne, from far across the ocean, Hong Kong. I have k...

Read the Post in new Window Read the Post in Threaded view  Post #1: Crossover Design by drdna on 2005-10-29 
Browse the content of the threads in new Window  Thread: Crossover Design in Audio Discussions  69 Replies 
Hi Roman et al!Allow me to introduce myself.  I have followed with amusement Romy the Cat for many years.  He is ascerbic and ultracritical, but he does know audio.  We share many tastes, like the Koetsu Onyx Platinum foir instance, on...

Read the Post in new Window Read the Post in Threaded view  Post #2: Still planning by drdna on 2007-08-25 
Browse the content of the threads in new Window  Thread: Better chassis design for Melquiades. in Melquiades Amplifier  4 Replies 
Ever since the Melquiades schematic was published, I have been planning to build one, because the objectives and topology seem like they would work for my system.  Unfortunately I am very much not a DIY person.  Even though I have built my ...

Read the Post in new Window Read the Post in Threaded view  Post #17: Tube thief by hagtech on 2007-11-07 
Browse the content of the threads in new Window  Thread: 7788 tube mic pre design in Analog Playback  38 Replies 
[quote]This is very bogus notion[/quote]Well I am glad to see you feel that way.  You never know - some people cry foul when such happens.  "Hey, that was my idea!  And now this guy stole it and put into his own product."  It happ...

Read the Post in new Window Read the Post in Threaded view  Post #2: Re: Crossover Design: WHY? by Romy the Cat on 2005-10-29 
Browse the content of the threads in new Window  Thread: Crossover Design in Audio Discussions  69 Replies 
[quote user="drdna"] I know all the compromises involved with the EdgarHorns, I have heard them when I visited Bruce Edgar in Gardena, and they were pretty good compared to most of what is out there.  I realized that I would likely never be able...

Read the Post in new Window Read the Post in Threaded view  Post #1: Making it sing... by skushino on 2005-07-07 
Browse the content of the threads in new Window  Thread: Making it sing... in Horn-Loaded Speakers  8 Replies 
All-I'm optimizing new speakers, but the deep subject matter is a little new to me.  Will this work?Using a pair of Welborne Labs DRD300B SET amps (tapped 8ohms) with a 3-way passive crossover to integrate these drivers.  Here is ...

Read the Post in new Window Read the Post in Threaded view  Post #2: Someone need to look into it. by Romy the Cat on 2017-04-29 
Browse the content of the threads in new Window  Thread: Melquiadising other amp? in Melquiades Amplifier  3 Replies 
Welborne, I do not think that I can give you an expert answer. You see, the gas tube biasing around 6e5p was in a way an accident. It was something that made the 6e5p to sound very interesting but I am not convinced that this type of biasing will ...

Read the Post in new Window Read the Post in Threaded view  Post #6: Sometimes a SET is not juts a SET... by Romy the Cat on 2005-12-30 
Browse the content of the threads in new Window  Thread: Myth: High-efficiency Low-power in Horn-Loaded Speakers  12 Replies 
I do not think that it is a mater of the output tube. Yes, the 300B is crappy tube but it is too easy to blame the under-performing tube. I would say that in the situation that Scott is experiencing the problem is not with his amplifier but in the id...
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