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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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» Steve Leung, Cartridge W»
» The Trout - Perlman, Ba»
» Aries Cerat Contendo - t»
» Arranging my records col»
» Bye-Bye Reel
» Suggested target curves »
» November to remember… an»
» Aesthetix Rhea Signature»
» A different type of uppe»
» Charles Schlueter’s inte»
» Reallocation of efforts:»
» Compression drivers and »
» Another topic on vitavox»
» About the tweeters phase»
» (Whose) classical music.»
» BiDat: One more output
» Lamm ML2.0 & Lamhorn»
» It is about timbres, stu»
» The Lavry Gold DA924 ++
» Streophile show 2007 and»
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» Gospel, pop, jazz and co»
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» Make your own horns?
» Metal domes
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» Milq: Starting the proje»
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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 6515 
One-stage Milq++ and the DHT's alleged tone 6514 
DHT Milq? 6514 
The DHT journey. 6514 
DHT tone 6514 
Well, why not? 6513 
Holding the Fort 6513 
My DHT experiment: Preface 6513 
Input tube and DC heaters 6512 
Reimyo Pat 777 6512 
My DHT experiment: Observations 6508 
DHT or 300B? 6508 
300B 6508 
Talking, perception and the grounds for objectively 6508 
The Wine Via the Wine Glass 6507 
Hence the confusion 6507 
My DHT experiment: some conclusions. 6507 
Reality Reconstruction is not a functionality. 6507 
My experience with DHTs 6507 
Pigmented coloration? 6507 
Dht-dht 6507 
Dynamic viscosity? 6507 
The Pallette preamp... 6507 
If one DHT is good, two must be better? 6507 
"soul" of tubes 6507 
There is a difference... 6507 
Vibration injection? 6507 
Homework # 4334 6507 
The 01A-71A-10Y-45 chain 6507 
Old valves have more soul! 6506 
Was it soul or soil? 6506 
It was just a heading 6506 
Adjustable color: TIMBRE LOCK? 6506 
Neutral or neutral/uncoloured? 6506 
..are lacking in power, dynamics and bandwidth. 6506 
Timbre-Lock. Not quite ready for prime time. 6506 
Injection of analog dither? 6506 
Subliminal signal 6506 
The idea of analog randomanization. 6506 
Okay, what Avicena Power Generator 6506 
I hope you will be hearing about it. 6505 
Avicenna = Arabian 6505 
Persian, not Arab 6505 
The “second solution” - a major disappointment 6505 
More words to describe "sux" please 6505 
Revolution 6505 
The non-melodramatic DHT? 6505 
One-stage DHTs 6504 
One other thing 6504 
One stage 6504 
Brewing, thinking and heating 6504 
Physical characteristics of electronic devices 6504 
I see the things differently. 6504 
Don't waste time being "creative" 6504 
The audiophile attitude 6504 
The where and why of design choices 6504 
Blah blah blah 6504 
Laconic Clarity vs. Comfort vs. Nostalgia 6504 
Do I need to be hissing? 6504 
...associated with lack of neutrality and colorati... 6504 
John Broskie's Partial feedback amplifier 6504 
Randomness vs. freedom and the Homework # 4334 6503 
What is randomness? 6503 
Those least three possibilities… 6503 
Randomness and Music's Prerogative 6503 
It works, … sort of. The revolution is canceled. 6503 
Thorsten Loesch’s article about DHT SETs 6501 
A Beautiful Mind 6500 
Some summary and conclusions from the first phase. 6498 
Second phase: revising requirement for my DHT objectives. 6483 
Tubes for your DHT amp 6483 
Abandoning Milq? 6483 
Will see how it goes.... 6483 
Single-stage Milq vs. Sun Audio VT-2A3 6481 
Topology and 2A3? 6481 
6SN7-2A3 amps? 6481 
Type Casting 6481 
Sun Audio SV-2A3 6481 
6sn7-2a3 6481 
Topology vs parts 6481 
For a DHT amp, you are listening to the power supply 6481 
The vintage tubes syndrome. 6481 
Parts Frenzy 6481 
Too many new sounds 6481 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6480 
New tubes 6479 
Milq bias vs. batery bias 6479 
The batteries are a tricky thing. 6479 
Swimming the ocean at night? 6479 
New 2A3 6479 
To kill of do not kill the capacitor. 6478 
The JJ Electronic amp. 6477 
JJ 2A3 and amp 6477 
Czech tubes 6475 
Single plated vs Double plated? 6475 
Mono plate 2A3 tubes 6475 
I suggested once VT52 tube 6474 
The 800R vs. 1800R vs. 5500R 6474 
YO-186 as the output tube. 6471 
Here she is. 6470 
Some talks about the new production tubes 6466 
New 2A3 tubes 6466 
Some thoughts about one-IHT vs. multiple-DHT 6466 
The Sun Audio with 6E5P 6465 
Multistage DHT circuits 6464 
Wrong tube or wrong topology – here is the question. 6463 
Emission Labs 2A3 6463 
Some comment and questions about then 2A3 talks. 6463 
Which Chinese 2A3? 6463 
OK, for a first time I like the San Audio Kit. 6463 
The YO186 Strip Show 6463 
More on the 2A3 comparisons 6462 
It will be interesting…. 6462 
OPT impedence 6462 
More about the Plate Loading 6462 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6457 
2A3 data 6457 
The New 2A3 tubes 6457 
How many stages I need for 110dB sensitivity, smal... 6457 
How many stages and why... and who makes that 45 o... 6456 
Everything about everything. 6456 
Some very good points... and... possibly more logi... 6456 
Options, options, options.... 6456 
I think we agree overall 6456 
An IDHT with more gain? 6455 
You don't ask for much now, eh? 6455 
2A3 tube impressions 6450 
Interesting analogy 6450 
NOS 2A3 tubes versus new tubes 6450 
Hmmm, let me try this one again... 6450 
Sylvania 2A3 identification 6450 
A picture is worth a thousand micromhos? 6450 
I have more interest in the period tubes 6450 
Why NOS tubes? 6449 
The Holly Ignorance 6449 
Tube tasting 6449 
The cathodes’ flatulence? 6449 
Make mine thoriated please 6449 
Any Germans out there? 6449 
6E5P VS 6E6P 6449 
Vibrations? What do you with them? 6449 
Vibration in tubes and sounds 6449 
UX4 vs UX4ruskie 6448 
Ringing the tubes? I do not know how about that. 6448 
Tube sound and vibration 6448 
The thoughts collection about YO186? 6442 
The lights look green for the YO tube 6441 
"Melquiades" with YO-186. Something like... 6441 
My version of RE-604 and PX4 6440 
The YO186 tube sockets. 6440 
B4/B5 British made 6439 
The YO186’s sockets and prices 6439 
DHT 2A3 amplifier rectification 6438 
My attitude toward tube rectification. 6438 
Tu-be or not Tu-be, seems Tu-be the question. 6437 
It looks like DHT DSET is shaping up. 6436 
The Sylvania 2A3 NOS report 6433 
The Citizen Kane syndrome. 6433 
Sylvania 2A3 in a World without Color 6432 
Are NOS and new manufacture comparing oranges to o... 6432 
That all is incorrect in a way…. 6432 
NOS vs new 2A3 tubes 6432 
The identical operation environment? 6432 
Preferred 2A3 operating point 6432 
The sound of the 2A3 however? 6432 
Circuit modification for 2A3 optimization 6431 
How to get max power from 2A3 6431 
2A3 voltages, loads and realized output power 6431 
Optimal operation of 2A3: an experiment 6431 
Tubes, Whole Circuits, Expectations and Sound 6431 
Gain is not power. 6431 
2A3 amplifier modification & Optimization 6431 
Specialized DSET approach 6431 
6C33/2A3 DSET? 6431 
SET usable power and making the most of it 6431 
The 2A3 loading 6431 
DSET solution for EdgarHorn? 6431 
Optimizing the 2A3 6431 
How much to DSET a DSET 6431 
DSET for Titan 6431 
The Best of All Worlds 6431 
Multiamp setup 6430 
Optimizing the (NOS) 2A3... "KM-style"? 6430 
There are many opportunities, it all depends what ... 6430 
Modifying amplifer to optimize NOS 2A3 performance 6430 
Conceptualizing Melquiades DSET is done 6424 
2A3 and 400V supply 6424 
Pudding and the chicken wires 6423 
Another shot at numbers 6423 
How to cook the "uninformed" anode. 6423 
Okay, so this might work.... 6423 
The DHT Milq DSET, the prebuilt draft. 6423 
Looks good, but.... 6422 
2A3 with slightly lover filament voltage? 6422 
Less is more... usually. 6422 
Where to burn gain? how? and where to get beter st... 6421 
Stepping Out 6421 
Said to be good, but 6421 
Gain to lose 6421 
Why nothing is simple with this damn amp! 6421 
Another idea for losing gain 6421 
What's best 6421 
Options, options... 6421 
Actually, it is not so bad. 6421 
Other compromises... 6420 
Cathode vs. fixed with DHT 6419 
Is it glowing yet? 6399 
It is comming.... 6399 
The new MF channel. 6393 
I started to work on the Milq’s DHT Island. 6392 
Innerstage loading vs. OPT loading. 6384 
The intestage loading talk. 6381 
My playback feels like it is broken. 6376 
1 in 50? 6376 
Yes, it was after PP2000 6376 
Die Walküre soldering. 6375 
The post Die Walküre soldering 6374 
Another amp arond YO186 6373 
Gain? 6373 
The Unexpected problem with DHT Milq. 6373 
Simple is good 6372 
Ok, I am moving forward. 6372 
The Milq DSET is up. 6371 
My DH DSET – 2 days later. 6369 
Here is more data to reconcile. 6369 
Hm, that is interesting and unpleasant so far. 6368 
Ok, what do I want? 6368 
Let Go of Some Conceptual "Restrictions"? 6368 
The Milq DH DSET, the further thoughts in progress. 6368 
Crunching Numbers; Shaping Sound 6368 
How about the tweeter? 6367 
Tweeter Efficiency? 6367 
Safe and Sound 6367 
More mystery with tweeter but still on the subject. 6367 
Some clarifications. 6367 
How about that?!!! 6367 
Further considerations: DC-coupling. 6365 
Head Room 6365 
To kill the mandatory 13dB 6364 
DC coupling and killing 13db and driving 6e5p miller and.... 6364 
I do not think that it might be damaging… 6364 
Again with the PS 6364 
AKA J.C. Morrison’s amp but… 6362 
Parallel Universe 6362 
Melquiades HD MF DSET, Draft13. 6360 
Why I let other people build them... 6360 
Ok, it's going to right direction. 6360 
Ok, it looks already very close…. 6359 
The Loftinish-Whitish, well sort of…. 6356 
MF: the pre-final version. 6356 
Loftin-White? 6356 
Did anyone hear the PX4 amplifiers? 6356 
What Could use Improving at This Point? 6356 
The Milq’s MF front-end is done 6352 
Why I Let Other People Build Them, II 6352 
Define really quiet 6351 
Another variable of sound 6351 
Backlash? 6351 
Alternative filament supplies 6351 
I kind of faced a problem with AC 6351 
Going down the DC path 6350 
It is not about the “whole sound” but about “molec... 6350 
Molecular sound 6350 
AC-DC heater supply 6350 
The Tentlabs are $10 worth PS. 6350 
The unexpected resolution of AC vs. DC quandary. 6350 
The devil is less scared than it depicted. 6350 
Hiss or Hum 6350 
AC transformers 6350 
I have seen the Promised Land 6349 
OK, the choke noise is not a problem anymore 6349 
Ok, it is working fine but… 6348 
Divide and Conquer 6348 
The design phase is over. 6347 
The unexpected insanity! 6346 
Loading 6346 
Looking for inspiring ideas for 'universal' loadin... 6346 
A filaments Sherlock Holmes wanted. 6346 
Going the Distance 6346 
Read the f*** manual! 6346 
Agreed. 6346 
I agree 6346 
The filament transformer 6346 
Center-tap and options 6346 
Something like this…. 6346 
Avoiding "Dial-an-Amp" 6346 
The foreplay is going on. 6346 
Split balance 6345 
Further thoughts about my DH filaments 6345 
The Shuguang 2A3 tubes. 6345 
SHuguang 6345 
Going through…. 6344 
The 2.5V noise vs. 4V noise. 6343 
More about Shuguang 2A3C 6343 
Hum vs voltage 6343 
Meow about the tubes… 6343 
To Be a Content Cat 6343 
Completed! 6340 
Tradition 6340 
Absolutely beautiful! 6340 
The 'film' caps in PS 6339 
Science or religion 6339 
Mass Extinction 6339 
Electrolytics, technology and time 6339 
No more questions about PS capacitors. 6339 
Capacitor choices 6339 
Good time. Welcome back. Thanks God. 6338 
The minor day of Quartets. 6338 
Them's the Breaks 6338 
Eventually! 6337 
So Soon? 6337 
DHT MF channel and 6-ch amp: first conclusions 6337 
All Abuzz about Nothing 6336 
The wire for DC-coupling 6336 
The Dirt on DIY Backlash 6336 
DSET vs. the “better tubes”. 6336 
How to test the DH tubes properly? 6335 
Pairing up tubes for SE use 6334 
The DHT live reserve 6333 
Some interestng models 6333 
Eaten alive. 6333 
The tubey déjà vu? 6332 
The new concept of my output transformer. 6328 
The 4V takes a lead. 6324 
Listening the DH and the striped down version of M... 6321 
I kind of slowly learn what I need. 6321 
More HF from a transformer and DHT? 6319 
Since You Don't Need the Gain 6318 
Exiting the design mode? 6318 
Bye-bye the input divider on MF! 6318 
A few steps back and a gaint leap ahead. 6314 
Single-stage vs. DHT amp. 6313 
Setting up the new Playback 6312 
And the winner is… so far 6309 
If you like type 45... 6309 
Type 45... they're not all the same 6309 
Favorite Flavor? 6309 
The 45 times Meow... 6309 
The problem that I see is… 6309 
Running the 45 6309 
The 10Y...and bye bye Newton 6308 
The commentaries about everything. 6308 
Driver tube and biasing 6308 
DHT drivers 6308 
The ideas are worth trying? 6308 
A question about the polishing the things…. 6304 
The Particular Tube, I'm afraid... 6304 
Driving the 45... cathode first 6303 
ST or Globe; old or new... 6303 
Whatever sticks to the wall as an operation point ... 6303 
The attenuating crap in secondary. 6303 
Operating points and cathode current 6303 
The Burgeoning Opportunities! 6303 
Actually it is not so simple. 6303 
Resistors at the front 6302 
A minor alternation of a position 6302 
The era of enlightenment. 6299 
The devil is in the details.... 6299 
Constructing Sound 6299 
A new view on the DHT evaluation. 6298 
The “strange” YO186 6289 
The dead guy’s lessons. 6244 
2S4S and 2A3 6235 
Ho to use the YO186 6228 
YO 186 fundamental flavor 6228 
The YO-YO tube and "fundamentals" channel 6228 
The live without the YO186, again.... 6226 
Not anymore! 6215 
The very good YoYonisation! 6214 
….above and below two very clean channel. 6213 
The DHT and esoteric imaging deformation. 6200 
DHT, YO186, or??? 6200 
I had no idea how ‘different’ it is. 6147 
The Kazitsky Manufacturing and YO104, some history. 6146 
"Absolution and Eternal Refuge." 6143 
Sofia Electric Type 45 Mesh 6133 
The true association of YO186's Sounds. 5895 
All the Best from Burgundy 5895 
Cheesy tubes 5894 
Me and my DHT references… 5785 
Y0-186 in winter. 5688 
Y0-186 sounds like… 5687 
Rethinking the YO186 tube. 5656 
In My Dreams 5656 
Grunt from type 45? A ridicules comment. 5656 
Blame? 5655 
When good is not good enough. 5655 
45s, Drivers, and 45s 5655 
Hm, that was so simple after all! 5654 
How the YO186 was used. 5238 
What is old is new? 5237 
YO186 vs. type 45. 5236 
The YO186 is gone.... :-( 4785 
That sucks. 4785 
YO186 4783 
Hm, what the hell is going on? 4783 
I do not think that anybody but me would like YO186 4783 
A hallucination? 4780 
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