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Romy the Cat has found another room. I’ve started a new fiction project under my name, Roman Bessnow. The new work is at MutationsBook.com

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Melquiades SET Amplifier
Macondo Acoustic System
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Romy the Cat's personal site dedicated to advanced audio and evolved music reproduction techniques
Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Single-stage Melquiades vs. DHT amps 6555 
One-stage Milq++ and the DHT's alleged tone 6554 
DHT Milq? 6554 
The DHT journey. 6554 
DHT tone 6554 
Well, why not? 6553 
Holding the Fort 6553 
My DHT experiment: Preface 6553 
Input tube and DC heaters 6552 
Reimyo Pat 777 6552 
My DHT experiment: Observations 6548 
DHT or 300B? 6548 
300B 6548 
Talking, perception and the grounds for objectively 6548 
The Wine Via the Wine Glass 6547 
Hence the confusion 6547 
My DHT experiment: some conclusions. 6547 
Reality Reconstruction is not a functionality. 6547 
My experience with DHTs 6547 
Pigmented coloration? 6547 
Dht-dht 6547 
Dynamic viscosity? 6547 
The Pallette preamp... 6547 
If one DHT is good, two must be better? 6547 
"soul" of tubes 6547 
There is a difference... 6547 
Vibration injection? 6547 
Homework # 4334 6547 
The 01A-71A-10Y-45 chain 6547 
Old valves have more soul! 6546 
Was it soul or soil? 6546 
It was just a heading 6546 
Adjustable color: TIMBRE LOCK? 6546 
Neutral or neutral/uncoloured? 6546 
..are lacking in power, dynamics and bandwidth. 6546 
Timbre-Lock. Not quite ready for prime time. 6546 
Injection of analog dither? 6546 
Subliminal signal 6546 
The idea of analog randomanization. 6546 
Okay, what Avicena Power Generator 6546 
I hope you will be hearing about it. 6545 
Avicenna = Arabian 6545 
Persian, not Arab 6545 
The “second solution” - a major disappointment 6545 
More words to describe "sux" please 6545 
Revolution 6545 
The non-melodramatic DHT? 6545 
One-stage DHTs 6544 
One other thing 6544 
One stage 6544 
Brewing, thinking and heating 6544 
Physical characteristics of electronic devices 6544 
I see the things differently. 6544 
Don't waste time being "creative" 6544 
The audiophile attitude 6544 
The where and why of design choices 6544 
Blah blah blah 6544 
Laconic Clarity vs. Comfort vs. Nostalgia 6544 
Do I need to be hissing? 6544 
...associated with lack of neutrality and colorati... 6544 
John Broskie's Partial feedback amplifier 6544 
Randomness vs. freedom and the Homework # 4334 6543 
What is randomness? 6543 
Those least three possibilities… 6543 
Randomness and Music's Prerogative 6543 
It works, … sort of. The revolution is canceled. 6543 
Thorsten Loesch’s article about DHT SETs 6541 
A Beautiful Mind 6540 
Some summary and conclusions from the first phase. 6538 
Second phase: revising requirement for my DHT objectives. 6523 
Tubes for your DHT amp 6523 
Abandoning Milq? 6523 
Will see how it goes.... 6523 
Single-stage Milq vs. Sun Audio VT-2A3 6521 
Topology and 2A3? 6521 
6SN7-2A3 amps? 6521 
Type Casting 6521 
Sun Audio SV-2A3 6521 
6sn7-2a3 6521 
Topology vs parts 6521 
For a DHT amp, you are listening to the power supply 6521 
The vintage tubes syndrome. 6521 
Parts Frenzy 6521 
Too many new sounds 6521 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6520 
New tubes 6519 
Milq bias vs. batery bias 6519 
The batteries are a tricky thing. 6519 
Swimming the ocean at night? 6519 
New 2A3 6519 
To kill of do not kill the capacitor. 6518 
The JJ Electronic amp. 6517 
JJ 2A3 and amp 6517 
Czech tubes 6515 
Single plated vs Double plated? 6515 
Mono plate 2A3 tubes 6515 
I suggested once VT52 tube 6514 
The 800R vs. 1800R vs. 5500R 6514 
YO-186 as the output tube. 6511 
Here she is. 6510 
Some talks about the new production tubes 6506 
New 2A3 tubes 6506 
Some thoughts about one-IHT vs. multiple-DHT 6506 
The Sun Audio with 6E5P 6505 
Multistage DHT circuits 6504 
Wrong tube or wrong topology – here is the question. 6503 
Emission Labs 2A3 6503 
Some comment and questions about then 2A3 talks. 6503 
Which Chinese 2A3? 6503 
OK, for a first time I like the San Audio Kit. 6503 
The YO186 Strip Show 6503 
More on the 2A3 comparisons 6502 
It will be interesting…. 6502 
OPT impedence 6502 
More about the Plate Loading 6502 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6497 
2A3 data 6497 
The New 2A3 tubes 6497 
How many stages I need for 110dB sensitivity, smal... 6497 
How many stages and why... and who makes that 45 o... 6496 
Everything about everything. 6496 
Some very good points... and... possibly more logi... 6496 
Options, options, options.... 6496 
I think we agree overall 6496 
An IDHT with more gain? 6495 
You don't ask for much now, eh? 6495 
2A3 tube impressions 6490 
Interesting analogy 6490 
NOS 2A3 tubes versus new tubes 6490 
Hmmm, let me try this one again... 6490 
Sylvania 2A3 identification 6490 
A picture is worth a thousand micromhos? 6490 
I have more interest in the period tubes 6490 
Why NOS tubes? 6489 
The Holly Ignorance 6489 
Tube tasting 6489 
The cathodes’ flatulence? 6489 
Make mine thoriated please 6489 
Any Germans out there? 6489 
6E5P VS 6E6P 6489 
Vibrations? What do you with them? 6489 
Vibration in tubes and sounds 6489 
UX4 vs UX4ruskie 6488 
Ringing the tubes? I do not know how about that. 6488 
Tube sound and vibration 6488 
The thoughts collection about YO186? 6482 
The lights look green for the YO tube 6481 
"Melquiades" with YO-186. Something like... 6481 
My version of RE-604 and PX4 6480 
The YO186 tube sockets. 6480 
B4/B5 British made 6479 
The YO186’s sockets and prices 6479 
DHT 2A3 amplifier rectification 6478 
My attitude toward tube rectification. 6478 
Tu-be or not Tu-be, seems Tu-be the question. 6477 
It looks like DHT DSET is shaping up. 6476 
The Sylvania 2A3 NOS report 6473 
The Citizen Kane syndrome. 6473 
Sylvania 2A3 in a World without Color 6472 
Are NOS and new manufacture comparing oranges to o... 6472 
That all is incorrect in a way…. 6472 
NOS vs new 2A3 tubes 6472 
The identical operation environment? 6472 
Preferred 2A3 operating point 6472 
The sound of the 2A3 however? 6472 
Circuit modification for 2A3 optimization 6471 
How to get max power from 2A3 6471 
2A3 voltages, loads and realized output power 6471 
Optimal operation of 2A3: an experiment 6471 
Tubes, Whole Circuits, Expectations and Sound 6471 
Gain is not power. 6471 
2A3 amplifier modification & Optimization 6471 
Specialized DSET approach 6471 
6C33/2A3 DSET? 6471 
SET usable power and making the most of it 6471 
The 2A3 loading 6471 
DSET solution for EdgarHorn? 6471 
Optimizing the 2A3 6471 
How much to DSET a DSET 6471 
DSET for Titan 6471 
The Best of All Worlds 6471 
Multiamp setup 6470 
Optimizing the (NOS) 2A3... "KM-style"? 6470 
There are many opportunities, it all depends what ... 6470 
Modifying amplifer to optimize NOS 2A3 performance 6470 
Conceptualizing Melquiades DSET is done 6464 
2A3 and 400V supply 6464 
Pudding and the chicken wires 6463 
Another shot at numbers 6463 
How to cook the "uninformed" anode. 6463 
Okay, so this might work.... 6463 
The DHT Milq DSET, the prebuilt draft. 6463 
Looks good, but.... 6462 
2A3 with slightly lover filament voltage? 6462 
Less is more... usually. 6462 
Where to burn gain? how? and where to get beter st... 6461 
Stepping Out 6461 
Said to be good, but 6461 
Gain to lose 6461 
Why nothing is simple with this damn amp! 6461 
Another idea for losing gain 6461 
What's best 6461 
Options, options... 6461 
Actually, it is not so bad. 6461 
Other compromises... 6460 
Cathode vs. fixed with DHT 6459 
Is it glowing yet? 6439 
It is comming.... 6439 
The new MF channel. 6433 
I started to work on the Milq’s DHT Island. 6432 
Innerstage loading vs. OPT loading. 6424 
The intestage loading talk. 6421 
My playback feels like it is broken. 6416 
1 in 50? 6416 
Yes, it was after PP2000 6416 
Die Walküre soldering. 6415 
The post Die Walküre soldering 6414 
Another amp arond YO186 6413 
Gain? 6413 
The Unexpected problem with DHT Milq. 6413 
Simple is good 6412 
Ok, I am moving forward. 6412 
The Milq DSET is up. 6411 
My DH DSET – 2 days later. 6409 
Here is more data to reconcile. 6409 
Hm, that is interesting and unpleasant so far. 6408 
Ok, what do I want? 6408 
Let Go of Some Conceptual "Restrictions"? 6408 
The Milq DH DSET, the further thoughts in progress. 6408 
Crunching Numbers; Shaping Sound 6408 
How about the tweeter? 6407 
Tweeter Efficiency? 6407 
Safe and Sound 6407 
More mystery with tweeter but still on the subject. 6407 
Some clarifications. 6407 
How about that?!!! 6407 
Further considerations: DC-coupling. 6405 
Head Room 6405 
To kill the mandatory 13dB 6404 
DC coupling and killing 13db and driving 6e5p miller and.... 6404 
I do not think that it might be damaging… 6404 
Again with the PS 6404 
AKA J.C. Morrison’s amp but… 6402 
Parallel Universe 6402 
Melquiades HD MF DSET, Draft13. 6400 
Why I let other people build them... 6400 
Ok, it's going to right direction. 6400 
Ok, it looks already very close…. 6399 
The Loftinish-Whitish, well sort of…. 6396 
MF: the pre-final version. 6396 
Loftin-White? 6396 
Did anyone hear the PX4 amplifiers? 6396 
What Could use Improving at This Point? 6396 
The Milq’s MF front-end is done 6392 
Why I Let Other People Build Them, II 6392 
Define really quiet 6391 
Another variable of sound 6391 
Backlash? 6391 
Alternative filament supplies 6391 
I kind of faced a problem with AC 6391 
Going down the DC path 6390 
It is not about the “whole sound” but about “molec... 6390 
Molecular sound 6390 
AC-DC heater supply 6390 
The Tentlabs are $10 worth PS. 6390 
The unexpected resolution of AC vs. DC quandary. 6390 
The devil is less scared than it depicted. 6390 
Hiss or Hum 6390 
AC transformers 6390 
I have seen the Promised Land 6389 
OK, the choke noise is not a problem anymore 6389 
Ok, it is working fine but… 6388 
Divide and Conquer 6388 
The design phase is over. 6387 
The unexpected insanity! 6386 
Loading 6386 
Looking for inspiring ideas for 'universal' loadin... 6386 
A filaments Sherlock Holmes wanted. 6386 
Going the Distance 6386 
Read the f*** manual! 6386 
Agreed. 6386 
I agree 6386 
The filament transformer 6386 
Center-tap and options 6386 
Something like this…. 6386 
Avoiding "Dial-an-Amp" 6386 
The foreplay is going on. 6386 
Split balance 6385 
Further thoughts about my DH filaments 6385 
The Shuguang 2A3 tubes. 6385 
SHuguang 6385 
Going through…. 6384 
The 2.5V noise vs. 4V noise. 6383 
More about Shuguang 2A3C 6383 
Hum vs voltage 6383 
Meow about the tubes… 6383 
To Be a Content Cat 6383 
Completed! 6380 
Tradition 6380 
Absolutely beautiful! 6380 
The 'film' caps in PS 6379 
Science or religion 6379 
Mass Extinction 6379 
Electrolytics, technology and time 6379 
No more questions about PS capacitors. 6379 
Capacitor choices 6379 
Good time. Welcome back. Thanks God. 6378 
The minor day of Quartets. 6378 
Them's the Breaks 6378 
Eventually! 6377 
So Soon? 6377 
DHT MF channel and 6-ch amp: first conclusions 6377 
All Abuzz about Nothing 6376 
The wire for DC-coupling 6376 
The Dirt on DIY Backlash 6376 
DSET vs. the “better tubes”. 6376 
How to test the DH tubes properly? 6375 
Pairing up tubes for SE use 6374 
The DHT live reserve 6373 
Some interestng models 6373 
Eaten alive. 6373 
The tubey déjà vu? 6372 
The new concept of my output transformer. 6368 
The 4V takes a lead. 6364 
Listening the DH and the striped down version of M... 6361 
I kind of slowly learn what I need. 6361 
More HF from a transformer and DHT? 6359 
Since You Don't Need the Gain 6358 
Exiting the design mode? 6358 
Bye-bye the input divider on MF! 6358 
A few steps back and a gaint leap ahead. 6354 
Single-stage vs. DHT amp. 6353 
Setting up the new Playback 6352 
And the winner is… so far 6349 
If you like type 45... 6349 
Type 45... they're not all the same 6349 
Favorite Flavor? 6349 
The 45 times Meow... 6349 
The problem that I see is… 6349 
Running the 45 6349 
The 10Y...and bye bye Newton 6348 
The commentaries about everything. 6348 
Driver tube and biasing 6348 
DHT drivers 6348 
The ideas are worth trying? 6348 
A question about the polishing the things…. 6344 
The Particular Tube, I'm afraid... 6344 
Driving the 45... cathode first 6343 
ST or Globe; old or new... 6343 
Whatever sticks to the wall as an operation point ... 6343 
The attenuating crap in secondary. 6343 
Operating points and cathode current 6343 
The Burgeoning Opportunities! 6343 
Actually it is not so simple. 6343 
Resistors at the front 6342 
A minor alternation of a position 6342 
The era of enlightenment. 6339 
The devil is in the details.... 6339 
Constructing Sound 6339 
A new view on the DHT evaluation. 6338 
The “strange” YO186 6329 
The dead guy’s lessons. 6284 
2S4S and 2A3 6275 
Ho to use the YO186 6268 
YO 186 fundamental flavor 6268 
The YO-YO tube and "fundamentals" channel 6268 
The live without the YO186, again.... 6266 
Not anymore! 6255 
The very good YoYonisation! 6254 
….above and below two very clean channel. 6253 
The DHT and esoteric imaging deformation. 6240 
DHT, YO186, or??? 6240 
I had no idea how ‘different’ it is. 6187 
The Kazitsky Manufacturing and YO104, some history. 6186 
"Absolution and Eternal Refuge." 6183 
Sofia Electric Type 45 Mesh 6173 
The true association of YO186's Sounds. 5935 
All the Best from Burgundy 5935 
Cheesy tubes 5934 
Me and my DHT references… 5825 
Y0-186 in winter. 5728 
Y0-186 sounds like… 5727 
Rethinking the YO186 tube. 5696 
In My Dreams 5696 
Grunt from type 45? A ridicules comment. 5696 
Blame? 5695 
When good is not good enough. 5695 
45s, Drivers, and 45s 5695 
Hm, that was so simple after all! 5694 
How the YO186 was used. 5278 
What is old is new? 5277 
YO186 vs. type 45. 5276 
The YO186 is gone.... :-( 4825 
That sucks. 4825 
YO186 4823 
Hm, what the hell is going on? 4823 
I do not think that anybody but me would like YO186 4823 
A hallucination? 4820 
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