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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

Audio Knowledge Tree ™
Romy's "Audio Rules"
Audiophile Satire
Melquiades SET Amplifier
Macondo Acoustic System
End of Life Phonostage
Audio Demoronizator AD-1
My Exotic Audio Leftovers
My Playback System
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» From Newton to Einstein
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» My CES
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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 6550 
One-stage Milq++ and the DHT's alleged tone 6549 
DHT Milq? 6549 
The DHT journey. 6549 
DHT tone 6549 
Well, why not? 6548 
Holding the Fort 6548 
My DHT experiment: Preface 6548 
Input tube and DC heaters 6547 
Reimyo Pat 777 6547 
My DHT experiment: Observations 6543 
DHT or 300B? 6543 
300B 6543 
Talking, perception and the grounds for objectively 6543 
The Wine Via the Wine Glass 6542 
Hence the confusion 6542 
My DHT experiment: some conclusions. 6542 
Reality Reconstruction is not a functionality. 6542 
My experience with DHTs 6542 
Pigmented coloration? 6542 
Dht-dht 6542 
Dynamic viscosity? 6542 
The Pallette preamp... 6542 
If one DHT is good, two must be better? 6542 
"soul" of tubes 6542 
There is a difference... 6542 
Vibration injection? 6542 
Homework # 4334 6542 
The 01A-71A-10Y-45 chain 6542 
Old valves have more soul! 6541 
Was it soul or soil? 6541 
It was just a heading 6541 
Adjustable color: TIMBRE LOCK? 6541 
Neutral or neutral/uncoloured? 6541 
..are lacking in power, dynamics and bandwidth. 6541 
Timbre-Lock. Not quite ready for prime time. 6541 
Injection of analog dither? 6541 
Subliminal signal 6541 
The idea of analog randomanization. 6541 
Okay, what Avicena Power Generator 6541 
I hope you will be hearing about it. 6540 
Avicenna = Arabian 6540 
Persian, not Arab 6540 
The “second solution” - a major disappointment 6540 
More words to describe "sux" please 6540 
Revolution 6540 
The non-melodramatic DHT? 6540 
One-stage DHTs 6539 
One other thing 6539 
One stage 6539 
Brewing, thinking and heating 6539 
Physical characteristics of electronic devices 6539 
I see the things differently. 6539 
Don't waste time being "creative" 6539 
The audiophile attitude 6539 
The where and why of design choices 6539 
Blah blah blah 6539 
Laconic Clarity vs. Comfort vs. Nostalgia 6539 
Do I need to be hissing? 6539 
...associated with lack of neutrality and colorati... 6539 
John Broskie's Partial feedback amplifier 6539 
Randomness vs. freedom and the Homework # 4334 6538 
What is randomness? 6538 
Those least three possibilities… 6538 
Randomness and Music's Prerogative 6538 
It works, … sort of. The revolution is canceled. 6538 
Thorsten Loesch’s article about DHT SETs 6536 
A Beautiful Mind 6535 
Some summary and conclusions from the first phase. 6533 
Second phase: revising requirement for my DHT objectives. 6518 
Tubes for your DHT amp 6518 
Abandoning Milq? 6518 
Will see how it goes.... 6518 
Single-stage Milq vs. Sun Audio VT-2A3 6516 
Topology and 2A3? 6516 
6SN7-2A3 amps? 6516 
Type Casting 6516 
Sun Audio SV-2A3 6516 
6sn7-2a3 6516 
Topology vs parts 6516 
For a DHT amp, you are listening to the power supply 6516 
The vintage tubes syndrome. 6516 
Parts Frenzy 6516 
Too many new sounds 6516 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6515 
New tubes 6514 
Milq bias vs. batery bias 6514 
The batteries are a tricky thing. 6514 
Swimming the ocean at night? 6514 
New 2A3 6514 
To kill of do not kill the capacitor. 6513 
The JJ Electronic amp. 6512 
JJ 2A3 and amp 6512 
Czech tubes 6510 
Single plated vs Double plated? 6510 
Mono plate 2A3 tubes 6510 
I suggested once VT52 tube 6509 
The 800R vs. 1800R vs. 5500R 6509 
YO-186 as the output tube. 6506 
Here she is. 6505 
Some talks about the new production tubes 6501 
New 2A3 tubes 6501 
Some thoughts about one-IHT vs. multiple-DHT 6501 
The Sun Audio with 6E5P 6500 
Multistage DHT circuits 6499 
Wrong tube or wrong topology – here is the question. 6498 
Emission Labs 2A3 6498 
Some comment and questions about then 2A3 talks. 6498 
Which Chinese 2A3? 6498 
OK, for a first time I like the San Audio Kit. 6498 
The YO186 Strip Show 6498 
More on the 2A3 comparisons 6497 
It will be interesting…. 6497 
OPT impedence 6497 
More about the Plate Loading 6497 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6492 
2A3 data 6492 
The New 2A3 tubes 6492 
How many stages I need for 110dB sensitivity, smal... 6492 
How many stages and why... and who makes that 45 o... 6491 
Everything about everything. 6491 
Some very good points... and... possibly more logi... 6491 
Options, options, options.... 6491 
I think we agree overall 6491 
An IDHT with more gain? 6490 
You don't ask for much now, eh? 6490 
2A3 tube impressions 6485 
Interesting analogy 6485 
NOS 2A3 tubes versus new tubes 6485 
Hmmm, let me try this one again... 6485 
Sylvania 2A3 identification 6485 
A picture is worth a thousand micromhos? 6485 
I have more interest in the period tubes 6485 
Why NOS tubes? 6484 
The Holly Ignorance 6484 
Tube tasting 6484 
The cathodes’ flatulence? 6484 
Make mine thoriated please 6484 
Any Germans out there? 6484 
6E5P VS 6E6P 6484 
Vibrations? What do you with them? 6484 
Vibration in tubes and sounds 6484 
UX4 vs UX4ruskie 6483 
Ringing the tubes? I do not know how about that. 6483 
Tube sound and vibration 6483 
The thoughts collection about YO186? 6477 
The lights look green for the YO tube 6476 
"Melquiades" with YO-186. Something like... 6476 
My version of RE-604 and PX4 6475 
The YO186 tube sockets. 6475 
B4/B5 British made 6474 
The YO186’s sockets and prices 6474 
DHT 2A3 amplifier rectification 6473 
My attitude toward tube rectification. 6473 
Tu-be or not Tu-be, seems Tu-be the question. 6472 
It looks like DHT DSET is shaping up. 6471 
The Sylvania 2A3 NOS report 6468 
The Citizen Kane syndrome. 6468 
Sylvania 2A3 in a World without Color 6467 
Are NOS and new manufacture comparing oranges to o... 6467 
That all is incorrect in a way…. 6467 
NOS vs new 2A3 tubes 6467 
The identical operation environment? 6467 
Preferred 2A3 operating point 6467 
The sound of the 2A3 however? 6467 
Circuit modification for 2A3 optimization 6466 
How to get max power from 2A3 6466 
2A3 voltages, loads and realized output power 6466 
Optimal operation of 2A3: an experiment 6466 
Tubes, Whole Circuits, Expectations and Sound 6466 
Gain is not power. 6466 
2A3 amplifier modification & Optimization 6466 
Specialized DSET approach 6466 
6C33/2A3 DSET? 6466 
SET usable power and making the most of it 6466 
The 2A3 loading 6466 
DSET solution for EdgarHorn? 6466 
Optimizing the 2A3 6466 
How much to DSET a DSET 6466 
DSET for Titan 6466 
The Best of All Worlds 6466 
Multiamp setup 6465 
Optimizing the (NOS) 2A3... "KM-style"? 6465 
There are many opportunities, it all depends what ... 6465 
Modifying amplifer to optimize NOS 2A3 performance 6465 
Conceptualizing Melquiades DSET is done 6459 
2A3 and 400V supply 6459 
Pudding and the chicken wires 6458 
Another shot at numbers 6458 
How to cook the "uninformed" anode. 6458 
Okay, so this might work.... 6458 
The DHT Milq DSET, the prebuilt draft. 6458 
Looks good, but.... 6457 
2A3 with slightly lover filament voltage? 6457 
Less is more... usually. 6457 
Where to burn gain? how? and where to get beter st... 6456 
Stepping Out 6456 
Said to be good, but 6456 
Gain to lose 6456 
Why nothing is simple with this damn amp! 6456 
Another idea for losing gain 6456 
What's best 6456 
Options, options... 6456 
Actually, it is not so bad. 6456 
Other compromises... 6455 
Cathode vs. fixed with DHT 6454 
Is it glowing yet? 6434 
It is comming.... 6434 
The new MF channel. 6428 
I started to work on the Milq’s DHT Island. 6427 
Innerstage loading vs. OPT loading. 6419 
The intestage loading talk. 6416 
My playback feels like it is broken. 6411 
1 in 50? 6411 
Yes, it was after PP2000 6411 
Die Walküre soldering. 6410 
The post Die Walküre soldering 6409 
Another amp arond YO186 6408 
Gain? 6408 
The Unexpected problem with DHT Milq. 6408 
Simple is good 6407 
Ok, I am moving forward. 6407 
The Milq DSET is up. 6406 
My DH DSET – 2 days later. 6404 
Here is more data to reconcile. 6404 
Hm, that is interesting and unpleasant so far. 6403 
Ok, what do I want? 6403 
Let Go of Some Conceptual "Restrictions"? 6403 
The Milq DH DSET, the further thoughts in progress. 6403 
Crunching Numbers; Shaping Sound 6403 
How about the tweeter? 6402 
Tweeter Efficiency? 6402 
Safe and Sound 6402 
More mystery with tweeter but still on the subject. 6402 
Some clarifications. 6402 
How about that?!!! 6402 
Further considerations: DC-coupling. 6400 
Head Room 6400 
To kill the mandatory 13dB 6399 
DC coupling and killing 13db and driving 6e5p miller and.... 6399 
I do not think that it might be damaging… 6399 
Again with the PS 6399 
AKA J.C. Morrison’s amp but… 6397 
Parallel Universe 6397 
Melquiades HD MF DSET, Draft13. 6395 
Why I let other people build them... 6395 
Ok, it's going to right direction. 6395 
Ok, it looks already very close…. 6394 
The Loftinish-Whitish, well sort of…. 6391 
MF: the pre-final version. 6391 
Loftin-White? 6391 
Did anyone hear the PX4 amplifiers? 6391 
What Could use Improving at This Point? 6391 
The Milq’s MF front-end is done 6387 
Why I Let Other People Build Them, II 6387 
Define really quiet 6386 
Another variable of sound 6386 
Backlash? 6386 
Alternative filament supplies 6386 
I kind of faced a problem with AC 6386 
Going down the DC path 6385 
It is not about the “whole sound” but about “molec... 6385 
Molecular sound 6385 
AC-DC heater supply 6385 
The Tentlabs are $10 worth PS. 6385 
The unexpected resolution of AC vs. DC quandary. 6385 
The devil is less scared than it depicted. 6385 
Hiss or Hum 6385 
AC transformers 6385 
I have seen the Promised Land 6384 
OK, the choke noise is not a problem anymore 6384 
Ok, it is working fine but… 6383 
Divide and Conquer 6383 
The design phase is over. 6382 
The unexpected insanity! 6381 
Loading 6381 
Looking for inspiring ideas for 'universal' loadin... 6381 
A filaments Sherlock Holmes wanted. 6381 
Going the Distance 6381 
Read the f*** manual! 6381 
Agreed. 6381 
I agree 6381 
The filament transformer 6381 
Center-tap and options 6381 
Something like this…. 6381 
Avoiding "Dial-an-Amp" 6381 
The foreplay is going on. 6381 
Split balance 6380 
Further thoughts about my DH filaments 6380 
The Shuguang 2A3 tubes. 6380 
SHuguang 6380 
Going through…. 6379 
The 2.5V noise vs. 4V noise. 6378 
More about Shuguang 2A3C 6378 
Hum vs voltage 6378 
Meow about the tubes… 6378 
To Be a Content Cat 6378 
Completed! 6375 
Tradition 6375 
Absolutely beautiful! 6375 
The 'film' caps in PS 6374 
Science or religion 6374 
Mass Extinction 6374 
Electrolytics, technology and time 6374 
No more questions about PS capacitors. 6374 
Capacitor choices 6374 
Good time. Welcome back. Thanks God. 6373 
The minor day of Quartets. 6373 
Them's the Breaks 6373 
Eventually! 6372 
So Soon? 6372 
DHT MF channel and 6-ch amp: first conclusions 6372 
All Abuzz about Nothing 6371 
The wire for DC-coupling 6371 
The Dirt on DIY Backlash 6371 
DSET vs. the “better tubes”. 6371 
How to test the DH tubes properly? 6370 
Pairing up tubes for SE use 6369 
The DHT live reserve 6368 
Some interestng models 6368 
Eaten alive. 6368 
The tubey déjà vu? 6367 
The new concept of my output transformer. 6363 
The 4V takes a lead. 6359 
Listening the DH and the striped down version of M... 6356 
I kind of slowly learn what I need. 6356 
More HF from a transformer and DHT? 6354 
Since You Don't Need the Gain 6353 
Exiting the design mode? 6353 
Bye-bye the input divider on MF! 6353 
A few steps back and a gaint leap ahead. 6349 
Single-stage vs. DHT amp. 6348 
Setting up the new Playback 6347 
And the winner is… so far 6344 
If you like type 45... 6344 
Type 45... they're not all the same 6344 
Favorite Flavor? 6344 
The 45 times Meow... 6344 
The problem that I see is… 6344 
Running the 45 6344 
The 10Y...and bye bye Newton 6343 
The commentaries about everything. 6343 
Driver tube and biasing 6343 
DHT drivers 6343 
The ideas are worth trying? 6343 
A question about the polishing the things…. 6339 
The Particular Tube, I'm afraid... 6339 
Driving the 45... cathode first 6338 
ST or Globe; old or new... 6338 
Whatever sticks to the wall as an operation point ... 6338 
The attenuating crap in secondary. 6338 
Operating points and cathode current 6338 
The Burgeoning Opportunities! 6338 
Actually it is not so simple. 6338 
Resistors at the front 6337 
A minor alternation of a position 6337 
The era of enlightenment. 6334 
The devil is in the details.... 6334 
Constructing Sound 6334 
A new view on the DHT evaluation. 6333 
The “strange” YO186 6324 
The dead guy’s lessons. 6279 
2S4S and 2A3 6270 
Ho to use the YO186 6263 
YO 186 fundamental flavor 6263 
The YO-YO tube and "fundamentals" channel 6263 
The live without the YO186, again.... 6261 
Not anymore! 6250 
The very good YoYonisation! 6249 
….above and below two very clean channel. 6248 
The DHT and esoteric imaging deformation. 6235 
DHT, YO186, or??? 6235 
I had no idea how ‘different’ it is. 6182 
The Kazitsky Manufacturing and YO104, some history. 6181 
"Absolution and Eternal Refuge." 6178 
Sofia Electric Type 45 Mesh 6168 
The true association of YO186's Sounds. 5930 
All the Best from Burgundy 5930 
Cheesy tubes 5929 
Me and my DHT references… 5820 
Y0-186 in winter. 5723 
Y0-186 sounds like… 5722 
Rethinking the YO186 tube. 5691 
In My Dreams 5691 
Grunt from type 45? A ridicules comment. 5691 
Blame? 5690 
When good is not good enough. 5690 
45s, Drivers, and 45s 5690 
Hm, that was so simple after all! 5689 
How the YO186 was used. 5273 
What is old is new? 5272 
YO186 vs. type 45. 5271 
The YO186 is gone.... :-( 4820 
That sucks. 4820 
YO186 4818 
Hm, what the hell is going on? 4818 
I do not think that anybody but me would like YO186 4818 
A hallucination? 4815 
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