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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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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 6525 
One-stage Milq++ and the DHT's alleged tone 6524 
DHT Milq? 6524 
The DHT journey. 6524 
DHT tone 6524 
Well, why not? 6523 
Holding the Fort 6523 
My DHT experiment: Preface 6523 
Input tube and DC heaters 6522 
Reimyo Pat 777 6522 
My DHT experiment: Observations 6518 
DHT or 300B? 6518 
300B 6518 
Talking, perception and the grounds for objectively 6518 
The Wine Via the Wine Glass 6517 
Hence the confusion 6517 
My DHT experiment: some conclusions. 6517 
Reality Reconstruction is not a functionality. 6517 
My experience with DHTs 6517 
Pigmented coloration? 6517 
Dht-dht 6517 
Dynamic viscosity? 6517 
The Pallette preamp... 6517 
If one DHT is good, two must be better? 6517 
"soul" of tubes 6517 
There is a difference... 6517 
Vibration injection? 6517 
Homework # 4334 6517 
The 01A-71A-10Y-45 chain 6517 
Old valves have more soul! 6516 
Was it soul or soil? 6516 
It was just a heading 6516 
Adjustable color: TIMBRE LOCK? 6516 
Neutral or neutral/uncoloured? 6516 
..are lacking in power, dynamics and bandwidth. 6516 
Timbre-Lock. Not quite ready for prime time. 6516 
Injection of analog dither? 6516 
Subliminal signal 6516 
The idea of analog randomanization. 6516 
Okay, what Avicena Power Generator 6516 
I hope you will be hearing about it. 6515 
Avicenna = Arabian 6515 
Persian, not Arab 6515 
The “second solution” - a major disappointment 6515 
More words to describe "sux" please 6515 
Revolution 6515 
The non-melodramatic DHT? 6515 
One-stage DHTs 6514 
One other thing 6514 
One stage 6514 
Brewing, thinking and heating 6514 
Physical characteristics of electronic devices 6514 
I see the things differently. 6514 
Don't waste time being "creative" 6514 
The audiophile attitude 6514 
The where and why of design choices 6514 
Blah blah blah 6514 
Laconic Clarity vs. Comfort vs. Nostalgia 6514 
Do I need to be hissing? 6514 
...associated with lack of neutrality and colorati... 6514 
John Broskie's Partial feedback amplifier 6514 
Randomness vs. freedom and the Homework # 4334 6513 
What is randomness? 6513 
Those least three possibilities… 6513 
Randomness and Music's Prerogative 6513 
It works, … sort of. The revolution is canceled. 6513 
Thorsten Loesch’s article about DHT SETs 6511 
A Beautiful Mind 6510 
Some summary and conclusions from the first phase. 6508 
Second phase: revising requirement for my DHT objectives. 6493 
Tubes for your DHT amp 6493 
Abandoning Milq? 6493 
Will see how it goes.... 6493 
Single-stage Milq vs. Sun Audio VT-2A3 6491 
Topology and 2A3? 6491 
6SN7-2A3 amps? 6491 
Type Casting 6491 
Sun Audio SV-2A3 6491 
6sn7-2a3 6491 
Topology vs parts 6491 
For a DHT amp, you are listening to the power supply 6491 
The vintage tubes syndrome. 6491 
Parts Frenzy 6491 
Too many new sounds 6491 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6490 
New tubes 6489 
Milq bias vs. batery bias 6489 
The batteries are a tricky thing. 6489 
Swimming the ocean at night? 6489 
New 2A3 6489 
To kill of do not kill the capacitor. 6488 
The JJ Electronic amp. 6487 
JJ 2A3 and amp 6487 
Czech tubes 6485 
Single plated vs Double plated? 6485 
Mono plate 2A3 tubes 6485 
I suggested once VT52 tube 6484 
The 800R vs. 1800R vs. 5500R 6484 
YO-186 as the output tube. 6481 
Here she is. 6480 
Some talks about the new production tubes 6476 
New 2A3 tubes 6476 
Some thoughts about one-IHT vs. multiple-DHT 6476 
The Sun Audio with 6E5P 6475 
Multistage DHT circuits 6474 
Wrong tube or wrong topology – here is the question. 6473 
Emission Labs 2A3 6473 
Some comment and questions about then 2A3 talks. 6473 
Which Chinese 2A3? 6473 
OK, for a first time I like the San Audio Kit. 6473 
The YO186 Strip Show 6473 
More on the 2A3 comparisons 6472 
It will be interesting…. 6472 
OPT impedence 6472 
More about the Plate Loading 6472 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6467 
2A3 data 6467 
The New 2A3 tubes 6467 
How many stages I need for 110dB sensitivity, smal... 6467 
How many stages and why... and who makes that 45 o... 6466 
Everything about everything. 6466 
Some very good points... and... possibly more logi... 6466 
Options, options, options.... 6466 
I think we agree overall 6466 
An IDHT with more gain? 6465 
You don't ask for much now, eh? 6465 
2A3 tube impressions 6460 
Interesting analogy 6460 
NOS 2A3 tubes versus new tubes 6460 
Hmmm, let me try this one again... 6460 
Sylvania 2A3 identification 6460 
A picture is worth a thousand micromhos? 6460 
I have more interest in the period tubes 6460 
Why NOS tubes? 6459 
The Holly Ignorance 6459 
Tube tasting 6459 
The cathodes’ flatulence? 6459 
Make mine thoriated please 6459 
Any Germans out there? 6459 
6E5P VS 6E6P 6459 
Vibrations? What do you with them? 6459 
Vibration in tubes and sounds 6459 
UX4 vs UX4ruskie 6458 
Ringing the tubes? I do not know how about that. 6458 
Tube sound and vibration 6458 
The thoughts collection about YO186? 6452 
The lights look green for the YO tube 6451 
"Melquiades" with YO-186. Something like... 6451 
My version of RE-604 and PX4 6450 
The YO186 tube sockets. 6450 
B4/B5 British made 6449 
The YO186’s sockets and prices 6449 
DHT 2A3 amplifier rectification 6448 
My attitude toward tube rectification. 6448 
Tu-be or not Tu-be, seems Tu-be the question. 6447 
It looks like DHT DSET is shaping up. 6446 
The Sylvania 2A3 NOS report 6443 
The Citizen Kane syndrome. 6443 
Sylvania 2A3 in a World without Color 6442 
Are NOS and new manufacture comparing oranges to o... 6442 
That all is incorrect in a way…. 6442 
NOS vs new 2A3 tubes 6442 
The identical operation environment? 6442 
Preferred 2A3 operating point 6442 
The sound of the 2A3 however? 6442 
Circuit modification for 2A3 optimization 6441 
How to get max power from 2A3 6441 
2A3 voltages, loads and realized output power 6441 
Optimal operation of 2A3: an experiment 6441 
Tubes, Whole Circuits, Expectations and Sound 6441 
Gain is not power. 6441 
2A3 amplifier modification & Optimization 6441 
Specialized DSET approach 6441 
6C33/2A3 DSET? 6441 
SET usable power and making the most of it 6441 
The 2A3 loading 6441 
DSET solution for EdgarHorn? 6441 
Optimizing the 2A3 6441 
How much to DSET a DSET 6441 
DSET for Titan 6441 
The Best of All Worlds 6441 
Multiamp setup 6440 
Optimizing the (NOS) 2A3... "KM-style"? 6440 
There are many opportunities, it all depends what ... 6440 
Modifying amplifer to optimize NOS 2A3 performance 6440 
Conceptualizing Melquiades DSET is done 6434 
2A3 and 400V supply 6434 
Pudding and the chicken wires 6433 
Another shot at numbers 6433 
How to cook the "uninformed" anode. 6433 
Okay, so this might work.... 6433 
The DHT Milq DSET, the prebuilt draft. 6433 
Looks good, but.... 6432 
2A3 with slightly lover filament voltage? 6432 
Less is more... usually. 6432 
Where to burn gain? how? and where to get beter st... 6431 
Stepping Out 6431 
Said to be good, but 6431 
Gain to lose 6431 
Why nothing is simple with this damn amp! 6431 
Another idea for losing gain 6431 
What's best 6431 
Options, options... 6431 
Actually, it is not so bad. 6431 
Other compromises... 6430 
Cathode vs. fixed with DHT 6429 
Is it glowing yet? 6409 
It is comming.... 6409 
The new MF channel. 6403 
I started to work on the Milq’s DHT Island. 6402 
Innerstage loading vs. OPT loading. 6394 
The intestage loading talk. 6391 
My playback feels like it is broken. 6386 
1 in 50? 6386 
Yes, it was after PP2000 6386 
Die Walküre soldering. 6385 
The post Die Walküre soldering 6384 
Another amp arond YO186 6383 
Gain? 6383 
The Unexpected problem with DHT Milq. 6383 
Simple is good 6382 
Ok, I am moving forward. 6382 
The Milq DSET is up. 6381 
My DH DSET – 2 days later. 6379 
Here is more data to reconcile. 6379 
Hm, that is interesting and unpleasant so far. 6378 
Ok, what do I want? 6378 
Let Go of Some Conceptual "Restrictions"? 6378 
The Milq DH DSET, the further thoughts in progress. 6378 
Crunching Numbers; Shaping Sound 6378 
How about the tweeter? 6377 
Tweeter Efficiency? 6377 
Safe and Sound 6377 
More mystery with tweeter but still on the subject. 6377 
Some clarifications. 6377 
How about that?!!! 6377 
Further considerations: DC-coupling. 6375 
Head Room 6375 
To kill the mandatory 13dB 6374 
DC coupling and killing 13db and driving 6e5p miller and.... 6374 
I do not think that it might be damaging… 6374 
Again with the PS 6374 
AKA J.C. Morrison’s amp but… 6372 
Parallel Universe 6372 
Melquiades HD MF DSET, Draft13. 6370 
Why I let other people build them... 6370 
Ok, it's going to right direction. 6370 
Ok, it looks already very close…. 6369 
The Loftinish-Whitish, well sort of…. 6366 
MF: the pre-final version. 6366 
Loftin-White? 6366 
Did anyone hear the PX4 amplifiers? 6366 
What Could use Improving at This Point? 6366 
The Milq’s MF front-end is done 6362 
Why I Let Other People Build Them, II 6362 
Define really quiet 6361 
Another variable of sound 6361 
Backlash? 6361 
Alternative filament supplies 6361 
I kind of faced a problem with AC 6361 
Going down the DC path 6360 
It is not about the “whole sound” but about “molec... 6360 
Molecular sound 6360 
AC-DC heater supply 6360 
The Tentlabs are $10 worth PS. 6360 
The unexpected resolution of AC vs. DC quandary. 6360 
The devil is less scared than it depicted. 6360 
Hiss or Hum 6360 
AC transformers 6360 
I have seen the Promised Land 6359 
OK, the choke noise is not a problem anymore 6359 
Ok, it is working fine but… 6358 
Divide and Conquer 6358 
The design phase is over. 6357 
The unexpected insanity! 6356 
Loading 6356 
Looking for inspiring ideas for 'universal' loadin... 6356 
A filaments Sherlock Holmes wanted. 6356 
Going the Distance 6356 
Read the f*** manual! 6356 
Agreed. 6356 
I agree 6356 
The filament transformer 6356 
Center-tap and options 6356 
Something like this…. 6356 
Avoiding "Dial-an-Amp" 6356 
The foreplay is going on. 6356 
Split balance 6355 
Further thoughts about my DH filaments 6355 
The Shuguang 2A3 tubes. 6355 
SHuguang 6355 
Going through…. 6354 
The 2.5V noise vs. 4V noise. 6353 
More about Shuguang 2A3C 6353 
Hum vs voltage 6353 
Meow about the tubes… 6353 
To Be a Content Cat 6353 
Completed! 6350 
Tradition 6350 
Absolutely beautiful! 6350 
The 'film' caps in PS 6349 
Science or religion 6349 
Mass Extinction 6349 
Electrolytics, technology and time 6349 
No more questions about PS capacitors. 6349 
Capacitor choices 6349 
Good time. Welcome back. Thanks God. 6348 
The minor day of Quartets. 6348 
Them's the Breaks 6348 
Eventually! 6347 
So Soon? 6347 
DHT MF channel and 6-ch amp: first conclusions 6347 
All Abuzz about Nothing 6346 
The wire for DC-coupling 6346 
The Dirt on DIY Backlash 6346 
DSET vs. the “better tubes”. 6346 
How to test the DH tubes properly? 6345 
Pairing up tubes for SE use 6344 
The DHT live reserve 6343 
Some interestng models 6343 
Eaten alive. 6343 
The tubey déjà vu? 6342 
The new concept of my output transformer. 6338 
The 4V takes a lead. 6334 
Listening the DH and the striped down version of M... 6331 
I kind of slowly learn what I need. 6331 
More HF from a transformer and DHT? 6329 
Since You Don't Need the Gain 6328 
Exiting the design mode? 6328 
Bye-bye the input divider on MF! 6328 
A few steps back and a gaint leap ahead. 6324 
Single-stage vs. DHT amp. 6323 
Setting up the new Playback 6322 
And the winner is… so far 6319 
If you like type 45... 6319 
Type 45... they're not all the same 6319 
Favorite Flavor? 6319 
The 45 times Meow... 6319 
The problem that I see is… 6319 
Running the 45 6319 
The 10Y...and bye bye Newton 6318 
The commentaries about everything. 6318 
Driver tube and biasing 6318 
DHT drivers 6318 
The ideas are worth trying? 6318 
A question about the polishing the things…. 6314 
The Particular Tube, I'm afraid... 6314 
Driving the 45... cathode first 6313 
ST or Globe; old or new... 6313 
Whatever sticks to the wall as an operation point ... 6313 
The attenuating crap in secondary. 6313 
Operating points and cathode current 6313 
The Burgeoning Opportunities! 6313 
Actually it is not so simple. 6313 
Resistors at the front 6312 
A minor alternation of a position 6312 
The era of enlightenment. 6309 
The devil is in the details.... 6309 
Constructing Sound 6309 
A new view on the DHT evaluation. 6308 
The “strange” YO186 6299 
The dead guy’s lessons. 6254 
2S4S and 2A3 6245 
Ho to use the YO186 6238 
YO 186 fundamental flavor 6238 
The YO-YO tube and "fundamentals" channel 6238 
The live without the YO186, again.... 6236 
Not anymore! 6225 
The very good YoYonisation! 6224 
….above and below two very clean channel. 6223 
The DHT and esoteric imaging deformation. 6210 
DHT, YO186, or??? 6210 
I had no idea how ‘different’ it is. 6157 
The Kazitsky Manufacturing and YO104, some history. 6156 
"Absolution and Eternal Refuge." 6153 
Sofia Electric Type 45 Mesh 6143 
The true association of YO186's Sounds. 5905 
All the Best from Burgundy 5905 
Cheesy tubes 5904 
Me and my DHT references… 5795 
Y0-186 in winter. 5698 
Y0-186 sounds like… 5697 
Rethinking the YO186 tube. 5666 
In My Dreams 5666 
Grunt from type 45? A ridicules comment. 5666 
Blame? 5665 
When good is not good enough. 5665 
45s, Drivers, and 45s 5665 
Hm, that was so simple after all! 5664 
How the YO186 was used. 5248 
What is old is new? 5247 
YO186 vs. type 45. 5246 
The YO186 is gone.... :-( 4795 
That sucks. 4795 
YO186 4793 
Hm, what the hell is going on? 4793 
I do not think that anybody but me would like YO186 4793 
A hallucination? 4790 
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