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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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» Ah Mravinsky !
» Stage Music: get clew.
» Universal VTA adjustment.
» New Motor for an Old Sot»
» Ca(r)t before the horse:»
» The Softer Side of a Har»
» Micro seiki SX-8000 Air »
» Loudspeakers and headpho»
» Meitner Audio - Ed Meitn»
» RIP Oscar Peterson
» High End 2012 in Germany
» Klipsch Jubilee
» Music reviews are writte»
» Digital crossovers self-»
» RAAL Dipole Ribbon Tweet»
» Commentary on Joe's »
» How High-End Audio can b»
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» New source for old tuners
» The Norman Lebrecht’s ar»
» Be careful: Imaging vs. »
» Eventually - a reasonabl»
» Lutoslawski Concerto for»
» Antenna attenuator – you»
» Lamm hybrids: M1.2 vs. L»
» About “strangeness” of A»
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» The most complicated que»
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» Align your FM tuners!
» Beethoven's Triple Conce»
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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 6498 
One-stage Milq++ and the DHT's alleged tone 6497 
DHT Milq? 6497 
The DHT journey. 6497 
DHT tone 6497 
Well, why not? 6496 
Holding the Fort 6496 
My DHT experiment: Preface 6496 
Input tube and DC heaters 6495 
Reimyo Pat 777 6495 
My DHT experiment: Observations 6491 
DHT or 300B? 6491 
300B 6491 
Talking, perception and the grounds for objectively 6491 
The Wine Via the Wine Glass 6490 
Hence the confusion 6490 
My DHT experiment: some conclusions. 6490 
Reality Reconstruction is not a functionality. 6490 
My experience with DHTs 6490 
Pigmented coloration? 6490 
Dht-dht 6490 
Dynamic viscosity? 6490 
The Pallette preamp... 6490 
If one DHT is good, two must be better? 6490 
"soul" of tubes 6490 
There is a difference... 6490 
Vibration injection? 6490 
Homework # 4334 6490 
The 01A-71A-10Y-45 chain 6490 
Old valves have more soul! 6489 
Was it soul or soil? 6489 
It was just a heading 6489 
Adjustable color: TIMBRE LOCK? 6489 
Neutral or neutral/uncoloured? 6489 
..are lacking in power, dynamics and bandwidth. 6489 
Timbre-Lock. Not quite ready for prime time. 6489 
Injection of analog dither? 6489 
Subliminal signal 6489 
The idea of analog randomanization. 6489 
Okay, what Avicena Power Generator 6489 
I hope you will be hearing about it. 6488 
Avicenna = Arabian 6488 
Persian, not Arab 6488 
The “second solution” - a major disappointment 6488 
More words to describe "sux" please 6488 
Revolution 6488 
The non-melodramatic DHT? 6488 
One-stage DHTs 6487 
One other thing 6487 
One stage 6487 
Brewing, thinking and heating 6487 
Physical characteristics of electronic devices 6487 
I see the things differently. 6487 
Don't waste time being "creative" 6487 
The audiophile attitude 6487 
The where and why of design choices 6487 
Blah blah blah 6487 
Laconic Clarity vs. Comfort vs. Nostalgia 6487 
Do I need to be hissing? 6487 
...associated with lack of neutrality and colorati... 6487 
John Broskie's Partial feedback amplifier 6487 
Randomness vs. freedom and the Homework # 4334 6486 
What is randomness? 6486 
Those least three possibilities… 6486 
Randomness and Music's Prerogative 6486 
It works, … sort of. The revolution is canceled. 6486 
Thorsten Loesch’s article about DHT SETs 6484 
A Beautiful Mind 6483 
Some summary and conclusions from the first phase. 6481 
Second phase: revising requirement for my DHT objectives. 6466 
Tubes for your DHT amp 6466 
Abandoning Milq? 6466 
Will see how it goes.... 6466 
Single-stage Milq vs. Sun Audio VT-2A3 6464 
Topology and 2A3? 6464 
6SN7-2A3 amps? 6464 
Type Casting 6464 
Sun Audio SV-2A3 6464 
6sn7-2a3 6464 
Topology vs parts 6464 
For a DHT amp, you are listening to the power supply 6464 
The vintage tubes syndrome. 6464 
Parts Frenzy 6464 
Too many new sounds 6464 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6463 
New tubes 6462 
Milq bias vs. batery bias 6462 
The batteries are a tricky thing. 6462 
Swimming the ocean at night? 6462 
New 2A3 6462 
To kill of do not kill the capacitor. 6461 
The JJ Electronic amp. 6460 
JJ 2A3 and amp 6460 
Czech tubes 6458 
Single plated vs Double plated? 6458 
Mono plate 2A3 tubes 6458 
I suggested once VT52 tube 6457 
The 800R vs. 1800R vs. 5500R 6457 
YO-186 as the output tube. 6454 
Here she is. 6453 
Some talks about the new production tubes 6449 
New 2A3 tubes 6449 
Some thoughts about one-IHT vs. multiple-DHT 6449 
The Sun Audio with 6E5P 6448 
Multistage DHT circuits 6447 
Wrong tube or wrong topology – here is the question. 6446 
Emission Labs 2A3 6446 
Some comment and questions about then 2A3 talks. 6446 
Which Chinese 2A3? 6446 
OK, for a first time I like the San Audio Kit. 6446 
The YO186 Strip Show 6446 
More on the 2A3 comparisons 6445 
It will be interesting…. 6445 
OPT impedence 6445 
More about the Plate Loading 6445 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6440 
2A3 data 6440 
The New 2A3 tubes 6440 
How many stages I need for 110dB sensitivity, smal... 6440 
How many stages and why... and who makes that 45 o... 6439 
Everything about everything. 6439 
Some very good points... and... possibly more logi... 6439 
Options, options, options.... 6439 
I think we agree overall 6439 
An IDHT with more gain? 6438 
You don't ask for much now, eh? 6438 
2A3 tube impressions 6433 
Interesting analogy 6433 
NOS 2A3 tubes versus new tubes 6433 
Hmmm, let me try this one again... 6433 
Sylvania 2A3 identification 6433 
A picture is worth a thousand micromhos? 6433 
I have more interest in the period tubes 6433 
Why NOS tubes? 6432 
The Holly Ignorance 6432 
Tube tasting 6432 
The cathodes’ flatulence? 6432 
Make mine thoriated please 6432 
Any Germans out there? 6432 
6E5P VS 6E6P 6432 
Vibrations? What do you with them? 6432 
Vibration in tubes and sounds 6432 
UX4 vs UX4ruskie 6431 
Ringing the tubes? I do not know how about that. 6431 
Tube sound and vibration 6431 
The thoughts collection about YO186? 6425 
The lights look green for the YO tube 6424 
"Melquiades" with YO-186. Something like... 6424 
My version of RE-604 and PX4 6423 
The YO186 tube sockets. 6423 
B4/B5 British made 6422 
The YO186’s sockets and prices 6422 
DHT 2A3 amplifier rectification 6421 
My attitude toward tube rectification. 6421 
Tu-be or not Tu-be, seems Tu-be the question. 6420 
It looks like DHT DSET is shaping up. 6419 
The Sylvania 2A3 NOS report 6416 
The Citizen Kane syndrome. 6416 
Sylvania 2A3 in a World without Color 6415 
Are NOS and new manufacture comparing oranges to o... 6415 
That all is incorrect in a way…. 6415 
NOS vs new 2A3 tubes 6415 
The identical operation environment? 6415 
Preferred 2A3 operating point 6415 
The sound of the 2A3 however? 6415 
Circuit modification for 2A3 optimization 6414 
How to get max power from 2A3 6414 
2A3 voltages, loads and realized output power 6414 
Optimal operation of 2A3: an experiment 6414 
Tubes, Whole Circuits, Expectations and Sound 6414 
Gain is not power. 6414 
2A3 amplifier modification & Optimization 6414 
Specialized DSET approach 6414 
6C33/2A3 DSET? 6414 
SET usable power and making the most of it 6414 
The 2A3 loading 6414 
DSET solution for EdgarHorn? 6414 
Optimizing the 2A3 6414 
How much to DSET a DSET 6414 
DSET for Titan 6414 
The Best of All Worlds 6414 
Multiamp setup 6413 
Optimizing the (NOS) 2A3... "KM-style"? 6413 
There are many opportunities, it all depends what ... 6413 
Modifying amplifer to optimize NOS 2A3 performance 6413 
Conceptualizing Melquiades DSET is done 6407 
2A3 and 400V supply 6407 
Pudding and the chicken wires 6406 
Another shot at numbers 6406 
How to cook the "uninformed" anode. 6406 
Okay, so this might work.... 6406 
The DHT Milq DSET, the prebuilt draft. 6406 
Looks good, but.... 6405 
2A3 with slightly lover filament voltage? 6405 
Less is more... usually. 6405 
Where to burn gain? how? and where to get beter st... 6404 
Stepping Out 6404 
Said to be good, but 6404 
Gain to lose 6404 
Why nothing is simple with this damn amp! 6404 
Another idea for losing gain 6404 
What's best 6404 
Options, options... 6404 
Actually, it is not so bad. 6404 
Other compromises... 6403 
Cathode vs. fixed with DHT 6402 
Is it glowing yet? 6382 
It is comming.... 6382 
The new MF channel. 6376 
I started to work on the Milq’s DHT Island. 6375 
Innerstage loading vs. OPT loading. 6367 
The intestage loading talk. 6364 
My playback feels like it is broken. 6359 
1 in 50? 6359 
Yes, it was after PP2000 6359 
Die Walküre soldering. 6358 
The post Die Walküre soldering 6357 
Another amp arond YO186 6356 
Gain? 6356 
The Unexpected problem with DHT Milq. 6356 
Simple is good 6355 
Ok, I am moving forward. 6355 
The Milq DSET is up. 6354 
My DH DSET – 2 days later. 6352 
Here is more data to reconcile. 6352 
Hm, that is interesting and unpleasant so far. 6351 
Ok, what do I want? 6351 
Let Go of Some Conceptual "Restrictions"? 6351 
The Milq DH DSET, the further thoughts in progress. 6351 
Crunching Numbers; Shaping Sound 6351 
How about the tweeter? 6350 
Tweeter Efficiency? 6350 
Safe and Sound 6350 
More mystery with tweeter but still on the subject. 6350 
Some clarifications. 6350 
How about that?!!! 6350 
Further considerations: DC-coupling. 6348 
Head Room 6348 
To kill the mandatory 13dB 6347 
DC coupling and killing 13db and driving 6e5p miller and.... 6347 
I do not think that it might be damaging… 6347 
Again with the PS 6347 
AKA J.C. Morrison’s amp but… 6345 
Parallel Universe 6345 
Melquiades HD MF DSET, Draft13. 6343 
Why I let other people build them... 6343 
Ok, it's going to right direction. 6343 
Ok, it looks already very close…. 6342 
The Loftinish-Whitish, well sort of…. 6339 
MF: the pre-final version. 6339 
Loftin-White? 6339 
Did anyone hear the PX4 amplifiers? 6339 
What Could use Improving at This Point? 6339 
The Milq’s MF front-end is done 6335 
Why I Let Other People Build Them, II 6335 
Define really quiet 6334 
Another variable of sound 6334 
Backlash? 6334 
Alternative filament supplies 6334 
I kind of faced a problem with AC 6334 
Going down the DC path 6333 
It is not about the “whole sound” but about “molec... 6333 
Molecular sound 6333 
AC-DC heater supply 6333 
The Tentlabs are $10 worth PS. 6333 
The unexpected resolution of AC vs. DC quandary. 6333 
The devil is less scared than it depicted. 6333 
Hiss or Hum 6333 
AC transformers 6333 
I have seen the Promised Land 6332 
OK, the choke noise is not a problem anymore 6332 
Ok, it is working fine but… 6331 
Divide and Conquer 6331 
The design phase is over. 6330 
The unexpected insanity! 6329 
Loading 6329 
Looking for inspiring ideas for 'universal' loadin... 6329 
A filaments Sherlock Holmes wanted. 6329 
Going the Distance 6329 
Read the f*** manual! 6329 
Agreed. 6329 
I agree 6329 
The filament transformer 6329 
Center-tap and options 6329 
Something like this…. 6329 
Avoiding "Dial-an-Amp" 6329 
The foreplay is going on. 6329 
Split balance 6328 
Further thoughts about my DH filaments 6328 
The Shuguang 2A3 tubes. 6328 
SHuguang 6328 
Going through…. 6327 
The 2.5V noise vs. 4V noise. 6326 
More about Shuguang 2A3C 6326 
Hum vs voltage 6326 
Meow about the tubes… 6326 
To Be a Content Cat 6326 
Completed! 6323 
Tradition 6323 
Absolutely beautiful! 6323 
The 'film' caps in PS 6322 
Science or religion 6322 
Mass Extinction 6322 
Electrolytics, technology and time 6322 
No more questions about PS capacitors. 6322 
Capacitor choices 6322 
Good time. Welcome back. Thanks God. 6321 
The minor day of Quartets. 6321 
Them's the Breaks 6321 
Eventually! 6320 
So Soon? 6320 
DHT MF channel and 6-ch amp: first conclusions 6320 
All Abuzz about Nothing 6319 
The wire for DC-coupling 6319 
The Dirt on DIY Backlash 6319 
DSET vs. the “better tubes”. 6319 
How to test the DH tubes properly? 6318 
Pairing up tubes for SE use 6317 
The DHT live reserve 6316 
Some interestng models 6316 
Eaten alive. 6316 
The tubey déjà vu? 6315 
The new concept of my output transformer. 6311 
The 4V takes a lead. 6307 
Listening the DH and the striped down version of M... 6304 
I kind of slowly learn what I need. 6304 
More HF from a transformer and DHT? 6302 
Since You Don't Need the Gain 6301 
Exiting the design mode? 6301 
Bye-bye the input divider on MF! 6301 
A few steps back and a gaint leap ahead. 6297 
Single-stage vs. DHT amp. 6296 
Setting up the new Playback 6295 
And the winner is… so far 6292 
If you like type 45... 6292 
Type 45... they're not all the same 6292 
Favorite Flavor? 6292 
The 45 times Meow... 6292 
The problem that I see is… 6292 
Running the 45 6292 
The 10Y...and bye bye Newton 6291 
The commentaries about everything. 6291 
Driver tube and biasing 6291 
DHT drivers 6291 
The ideas are worth trying? 6291 
A question about the polishing the things…. 6287 
The Particular Tube, I'm afraid... 6287 
Driving the 45... cathode first 6286 
ST or Globe; old or new... 6286 
Whatever sticks to the wall as an operation point ... 6286 
The attenuating crap in secondary. 6286 
Operating points and cathode current 6286 
The Burgeoning Opportunities! 6286 
Actually it is not so simple. 6286 
Resistors at the front 6285 
A minor alternation of a position 6285 
The era of enlightenment. 6282 
The devil is in the details.... 6282 
Constructing Sound 6282 
A new view on the DHT evaluation. 6281 
The “strange” YO186 6272 
The dead guy’s lessons. 6227 
2S4S and 2A3 6218 
Ho to use the YO186 6211 
YO 186 fundamental flavor 6211 
The YO-YO tube and "fundamentals" channel 6211 
The live without the YO186, again.... 6209 
Not anymore! 6198 
The very good YoYonisation! 6197 
….above and below two very clean channel. 6196 
The DHT and esoteric imaging deformation. 6183 
DHT, YO186, or??? 6183 
I had no idea how ‘different’ it is. 6130 
The Kazitsky Manufacturing and YO104, some history. 6129 
"Absolution and Eternal Refuge." 6126 
Sofia Electric Type 45 Mesh 6116 
The true association of YO186's Sounds. 5878 
All the Best from Burgundy 5878 
Cheesy tubes 5877 
Me and my DHT references… 5768 
Y0-186 in winter. 5671 
Y0-186 sounds like… 5670 
Rethinking the YO186 tube. 5639 
In My Dreams 5639 
Grunt from type 45? A ridicules comment. 5639 
Blame? 5638 
When good is not good enough. 5638 
45s, Drivers, and 45s 5638 
Hm, that was so simple after all! 5637 
How the YO186 was used. 5221 
What is old is new? 5220 
YO186 vs. type 45. 5219 
The YO186 is gone.... :-( 4768 
That sucks. 4768 
YO186 4766 
Hm, what the hell is going on? 4766 
I do not think that anybody but me would like YO186 4766 
A hallucination? 4763 
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