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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 6490 
One-stage Milq++ and the DHT's alleged tone 6489 
DHT Milq? 6489 
The DHT journey. 6489 
DHT tone 6489 
Well, why not? 6488 
Holding the Fort 6488 
My DHT experiment: Preface 6488 
Input tube and DC heaters 6487 
Reimyo Pat 777 6487 
My DHT experiment: Observations 6483 
DHT or 300B? 6483 
300B 6483 
Talking, perception and the grounds for objectively 6483 
The Wine Via the Wine Glass 6482 
Hence the confusion 6482 
My DHT experiment: some conclusions. 6482 
Reality Reconstruction is not a functionality. 6482 
My experience with DHTs 6482 
Pigmented coloration? 6482 
Dht-dht 6482 
Dynamic viscosity? 6482 
The Pallette preamp... 6482 
If one DHT is good, two must be better? 6482 
"soul" of tubes 6482 
There is a difference... 6482 
Vibration injection? 6482 
Homework # 4334 6482 
The 01A-71A-10Y-45 chain 6482 
Old valves have more soul! 6481 
Was it soul or soil? 6481 
It was just a heading 6481 
Adjustable color: TIMBRE LOCK? 6481 
Neutral or neutral/uncoloured? 6481 
..are lacking in power, dynamics and bandwidth. 6481 
Timbre-Lock. Not quite ready for prime time. 6481 
Injection of analog dither? 6481 
Subliminal signal 6481 
The idea of analog randomanization. 6481 
Okay, what Avicena Power Generator 6481 
I hope you will be hearing about it. 6480 
Avicenna = Arabian 6480 
Persian, not Arab 6480 
The “second solution” - a major disappointment 6480 
More words to describe "sux" please 6480 
Revolution 6480 
The non-melodramatic DHT? 6480 
One-stage DHTs 6479 
One other thing 6479 
One stage 6479 
Brewing, thinking and heating 6479 
Physical characteristics of electronic devices 6479 
I see the things differently. 6479 
Don't waste time being "creative" 6479 
The audiophile attitude 6479 
The where and why of design choices 6479 
Blah blah blah 6479 
Laconic Clarity vs. Comfort vs. Nostalgia 6479 
Do I need to be hissing? 6479 
...associated with lack of neutrality and colorati... 6479 
John Broskie's Partial feedback amplifier 6479 
Randomness vs. freedom and the Homework # 4334 6478 
What is randomness? 6478 
Those least three possibilities… 6478 
Randomness and Music's Prerogative 6478 
It works, … sort of. The revolution is canceled. 6478 
Thorsten Loesch’s article about DHT SETs 6476 
A Beautiful Mind 6475 
Some summary and conclusions from the first phase. 6473 
Second phase: revising requirement for my DHT objectives. 6458 
Tubes for your DHT amp 6458 
Abandoning Milq? 6458 
Will see how it goes.... 6458 
Single-stage Milq vs. Sun Audio VT-2A3 6456 
Topology and 2A3? 6456 
6SN7-2A3 amps? 6456 
Type Casting 6456 
Sun Audio SV-2A3 6456 
6sn7-2a3 6456 
Topology vs parts 6456 
For a DHT amp, you are listening to the power supply 6456 
The vintage tubes syndrome. 6456 
Parts Frenzy 6456 
Too many new sounds 6456 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6455 
New tubes 6454 
Milq bias vs. batery bias 6454 
The batteries are a tricky thing. 6454 
Swimming the ocean at night? 6454 
New 2A3 6454 
To kill of do not kill the capacitor. 6453 
The JJ Electronic amp. 6452 
JJ 2A3 and amp 6452 
Czech tubes 6450 
Single plated vs Double plated? 6450 
Mono plate 2A3 tubes 6450 
I suggested once VT52 tube 6449 
The 800R vs. 1800R vs. 5500R 6449 
YO-186 as the output tube. 6446 
Here she is. 6445 
Some talks about the new production tubes 6441 
New 2A3 tubes 6441 
Some thoughts about one-IHT vs. multiple-DHT 6441 
The Sun Audio with 6E5P 6440 
Multistage DHT circuits 6439 
Wrong tube or wrong topology – here is the question. 6438 
Emission Labs 2A3 6438 
Some comment and questions about then 2A3 talks. 6438 
Which Chinese 2A3? 6438 
OK, for a first time I like the San Audio Kit. 6438 
The YO186 Strip Show 6438 
More on the 2A3 comparisons 6437 
It will be interesting…. 6437 
OPT impedence 6437 
More about the Plate Loading 6437 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6432 
2A3 data 6432 
The New 2A3 tubes 6432 
How many stages I need for 110dB sensitivity, smal... 6432 
How many stages and why... and who makes that 45 o... 6431 
Everything about everything. 6431 
Some very good points... and... possibly more logi... 6431 
Options, options, options.... 6431 
I think we agree overall 6431 
An IDHT with more gain? 6430 
You don't ask for much now, eh? 6430 
2A3 tube impressions 6425 
Interesting analogy 6425 
NOS 2A3 tubes versus new tubes 6425 
Hmmm, let me try this one again... 6425 
Sylvania 2A3 identification 6425 
A picture is worth a thousand micromhos? 6425 
I have more interest in the period tubes 6425 
Why NOS tubes? 6424 
The Holly Ignorance 6424 
Tube tasting 6424 
The cathodes’ flatulence? 6424 
Make mine thoriated please 6424 
Any Germans out there? 6424 
6E5P VS 6E6P 6424 
Vibrations? What do you with them? 6424 
Vibration in tubes and sounds 6424 
UX4 vs UX4ruskie 6423 
Ringing the tubes? I do not know how about that. 6423 
Tube sound and vibration 6423 
The thoughts collection about YO186? 6417 
The lights look green for the YO tube 6416 
"Melquiades" with YO-186. Something like... 6416 
My version of RE-604 and PX4 6415 
The YO186 tube sockets. 6415 
B4/B5 British made 6414 
The YO186’s sockets and prices 6414 
DHT 2A3 amplifier rectification 6413 
My attitude toward tube rectification. 6413 
Tu-be or not Tu-be, seems Tu-be the question. 6412 
It looks like DHT DSET is shaping up. 6411 
The Sylvania 2A3 NOS report 6408 
The Citizen Kane syndrome. 6408 
Sylvania 2A3 in a World without Color 6407 
Are NOS and new manufacture comparing oranges to o... 6407 
That all is incorrect in a way…. 6407 
NOS vs new 2A3 tubes 6407 
The identical operation environment? 6407 
Preferred 2A3 operating point 6407 
The sound of the 2A3 however? 6407 
Circuit modification for 2A3 optimization 6406 
How to get max power from 2A3 6406 
2A3 voltages, loads and realized output power 6406 
Optimal operation of 2A3: an experiment 6406 
Tubes, Whole Circuits, Expectations and Sound 6406 
Gain is not power. 6406 
2A3 amplifier modification & Optimization 6406 
Specialized DSET approach 6406 
6C33/2A3 DSET? 6406 
SET usable power and making the most of it 6406 
The 2A3 loading 6406 
DSET solution for EdgarHorn? 6406 
Optimizing the 2A3 6406 
How much to DSET a DSET 6406 
DSET for Titan 6406 
The Best of All Worlds 6406 
Multiamp setup 6405 
Optimizing the (NOS) 2A3... "KM-style"? 6405 
There are many opportunities, it all depends what ... 6405 
Modifying amplifer to optimize NOS 2A3 performance 6405 
Conceptualizing Melquiades DSET is done 6399 
2A3 and 400V supply 6399 
Pudding and the chicken wires 6398 
Another shot at numbers 6398 
How to cook the "uninformed" anode. 6398 
Okay, so this might work.... 6398 
The DHT Milq DSET, the prebuilt draft. 6398 
Looks good, but.... 6397 
2A3 with slightly lover filament voltage? 6397 
Less is more... usually. 6397 
Where to burn gain? how? and where to get beter st... 6396 
Stepping Out 6396 
Said to be good, but 6396 
Gain to lose 6396 
Why nothing is simple with this damn amp! 6396 
Another idea for losing gain 6396 
What's best 6396 
Options, options... 6396 
Actually, it is not so bad. 6396 
Other compromises... 6395 
Cathode vs. fixed with DHT 6394 
Is it glowing yet? 6374 
It is comming.... 6374 
The new MF channel. 6368 
I started to work on the Milq’s DHT Island. 6367 
Innerstage loading vs. OPT loading. 6359 
The intestage loading talk. 6356 
My playback feels like it is broken. 6351 
1 in 50? 6351 
Yes, it was after PP2000 6351 
Die Walküre soldering. 6350 
The post Die Walküre soldering 6349 
Another amp arond YO186 6348 
Gain? 6348 
The Unexpected problem with DHT Milq. 6348 
Simple is good 6347 
Ok, I am moving forward. 6347 
The Milq DSET is up. 6346 
My DH DSET – 2 days later. 6344 
Here is more data to reconcile. 6344 
Hm, that is interesting and unpleasant so far. 6343 
Ok, what do I want? 6343 
Let Go of Some Conceptual "Restrictions"? 6343 
The Milq DH DSET, the further thoughts in progress. 6343 
Crunching Numbers; Shaping Sound 6343 
How about the tweeter? 6342 
Tweeter Efficiency? 6342 
Safe and Sound 6342 
More mystery with tweeter but still on the subject. 6342 
Some clarifications. 6342 
How about that?!!! 6342 
Further considerations: DC-coupling. 6340 
Head Room 6340 
To kill the mandatory 13dB 6339 
DC coupling and killing 13db and driving 6e5p miller and.... 6339 
I do not think that it might be damaging… 6339 
Again with the PS 6339 
AKA J.C. Morrison’s amp but… 6337 
Parallel Universe 6337 
Melquiades HD MF DSET, Draft13. 6335 
Why I let other people build them... 6335 
Ok, it's going to right direction. 6335 
Ok, it looks already very close…. 6334 
The Loftinish-Whitish, well sort of…. 6331 
MF: the pre-final version. 6331 
Loftin-White? 6331 
Did anyone hear the PX4 amplifiers? 6331 
What Could use Improving at This Point? 6331 
The Milq’s MF front-end is done 6327 
Why I Let Other People Build Them, II 6327 
Define really quiet 6326 
Another variable of sound 6326 
Backlash? 6326 
Alternative filament supplies 6326 
I kind of faced a problem with AC 6326 
Going down the DC path 6325 
It is not about the “whole sound” but about “molec... 6325 
Molecular sound 6325 
AC-DC heater supply 6325 
The Tentlabs are $10 worth PS. 6325 
The unexpected resolution of AC vs. DC quandary. 6325 
The devil is less scared than it depicted. 6325 
Hiss or Hum 6325 
AC transformers 6325 
I have seen the Promised Land 6324 
OK, the choke noise is not a problem anymore 6324 
Ok, it is working fine but… 6323 
Divide and Conquer 6323 
The design phase is over. 6322 
The unexpected insanity! 6321 
Loading 6321 
Looking for inspiring ideas for 'universal' loadin... 6321 
A filaments Sherlock Holmes wanted. 6321 
Going the Distance 6321 
Read the f*** manual! 6321 
Agreed. 6321 
I agree 6321 
The filament transformer 6321 
Center-tap and options 6321 
Something like this…. 6321 
Avoiding "Dial-an-Amp" 6321 
The foreplay is going on. 6321 
Split balance 6320 
Further thoughts about my DH filaments 6320 
The Shuguang 2A3 tubes. 6320 
SHuguang 6320 
Going through…. 6319 
The 2.5V noise vs. 4V noise. 6318 
More about Shuguang 2A3C 6318 
Hum vs voltage 6318 
Meow about the tubes… 6318 
To Be a Content Cat 6318 
Completed! 6315 
Tradition 6315 
Absolutely beautiful! 6315 
The 'film' caps in PS 6314 
Science or religion 6314 
Mass Extinction 6314 
Electrolytics, technology and time 6314 
No more questions about PS capacitors. 6314 
Capacitor choices 6314 
Good time. Welcome back. Thanks God. 6313 
The minor day of Quartets. 6313 
Them's the Breaks 6313 
Eventually! 6312 
So Soon? 6312 
DHT MF channel and 6-ch amp: first conclusions 6312 
All Abuzz about Nothing 6311 
The wire for DC-coupling 6311 
The Dirt on DIY Backlash 6311 
DSET vs. the “better tubes”. 6311 
How to test the DH tubes properly? 6310 
Pairing up tubes for SE use 6309 
The DHT live reserve 6308 
Some interestng models 6308 
Eaten alive. 6308 
The tubey déjà vu? 6307 
The new concept of my output transformer. 6303 
The 4V takes a lead. 6299 
Listening the DH and the striped down version of M... 6296 
I kind of slowly learn what I need. 6296 
More HF from a transformer and DHT? 6294 
Since You Don't Need the Gain 6293 
Exiting the design mode? 6293 
Bye-bye the input divider on MF! 6293 
A few steps back and a gaint leap ahead. 6289 
Single-stage vs. DHT amp. 6288 
Setting up the new Playback 6287 
And the winner is… so far 6284 
If you like type 45... 6284 
Type 45... they're not all the same 6284 
Favorite Flavor? 6284 
The 45 times Meow... 6284 
The problem that I see is… 6284 
Running the 45 6284 
The 10Y...and bye bye Newton 6283 
The commentaries about everything. 6283 
Driver tube and biasing 6283 
DHT drivers 6283 
The ideas are worth trying? 6283 
A question about the polishing the things…. 6279 
The Particular Tube, I'm afraid... 6279 
Driving the 45... cathode first 6278 
ST or Globe; old or new... 6278 
Whatever sticks to the wall as an operation point ... 6278 
The attenuating crap in secondary. 6278 
Operating points and cathode current 6278 
The Burgeoning Opportunities! 6278 
Actually it is not so simple. 6278 
Resistors at the front 6277 
A minor alternation of a position 6277 
The era of enlightenment. 6274 
The devil is in the details.... 6274 
Constructing Sound 6274 
A new view on the DHT evaluation. 6273 
The “strange” YO186 6264 
The dead guy’s lessons. 6219 
2S4S and 2A3 6210 
Ho to use the YO186 6203 
YO 186 fundamental flavor 6203 
The YO-YO tube and "fundamentals" channel 6203 
The live without the YO186, again.... 6201 
Not anymore! 6190 
The very good YoYonisation! 6189 
….above and below two very clean channel. 6188 
The DHT and esoteric imaging deformation. 6175 
DHT, YO186, or??? 6175 
I had no idea how ‘different’ it is. 6122 
The Kazitsky Manufacturing and YO104, some history. 6121 
"Absolution and Eternal Refuge." 6118 
Sofia Electric Type 45 Mesh 6108 
The true association of YO186's Sounds. 5870 
All the Best from Burgundy 5870 
Cheesy tubes 5869 
Me and my DHT references… 5760 
Y0-186 in winter. 5663 
Y0-186 sounds like… 5662 
Rethinking the YO186 tube. 5631 
In My Dreams 5631 
Grunt from type 45? A ridicules comment. 5631 
Blame? 5630 
When good is not good enough. 5630 
45s, Drivers, and 45s 5630 
Hm, that was so simple after all! 5629 
How the YO186 was used. 5213 
What is old is new? 5212 
YO186 vs. type 45. 5211 
The YO186 is gone.... :-( 4760 
That sucks. 4760 
YO186 4758 
Hm, what the hell is going on? 4758 
I do not think that anybody but me would like YO186 4758 
A hallucination? 4755 
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