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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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» Tchaikovsky Symphony #4
» What is High-End Audio, »
» The Absolute Sound of Au»
» DIY Firefly Horns
» Do not buy Brand and Mod»
» The mono cartridges para»
» Turntable speed analysis.
» CATS Purring tempo, slid»
» Today’s SACD - music for»
» Problems with horns: mid»
» FM Acoustics
» The great Corus performa»
» New Motor for an Old Sot»
» Floor reflections
» Not just another leather»
» LPs & CDs Storage.
» The African compression »
» My site and Your expecta»
» His Master Voice’s Shade»
» My playback can’t play l»
» Audio-tekne's "Tone»
» Experience Music Horn In»
» About reviewer’s qualifi»
» WGBH Opera Bash 2009
» Celebrating Anton Bruckn»
» Super Melquiades, Macond»
» Macondo Alternation. Ext»
» A dive to Auro 3D
» The WHRB’s Orgies period.
» About Harry Pearson lega»
» Bruckner, Wind and the w»
» Two-stages, hybrid, smal»
Bookmarked are red
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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 6506 
One-stage Milq++ and the DHT's alleged tone 6505 
DHT Milq? 6505 
The DHT journey. 6505 
DHT tone 6505 
Well, why not? 6504 
Holding the Fort 6504 
My DHT experiment: Preface 6504 
Input tube and DC heaters 6503 
Reimyo Pat 777 6503 
My DHT experiment: Observations 6499 
DHT or 300B? 6499 
300B 6499 
Talking, perception and the grounds for objectively 6499 
The Wine Via the Wine Glass 6498 
Hence the confusion 6498 
My DHT experiment: some conclusions. 6498 
Reality Reconstruction is not a functionality. 6498 
My experience with DHTs 6498 
Pigmented coloration? 6498 
Dht-dht 6498 
Dynamic viscosity? 6498 
The Pallette preamp... 6498 
If one DHT is good, two must be better? 6498 
"soul" of tubes 6498 
There is a difference... 6498 
Vibration injection? 6498 
Homework # 4334 6498 
The 01A-71A-10Y-45 chain 6498 
Old valves have more soul! 6497 
Was it soul or soil? 6497 
It was just a heading 6497 
Adjustable color: TIMBRE LOCK? 6497 
Neutral or neutral/uncoloured? 6497 
..are lacking in power, dynamics and bandwidth. 6497 
Timbre-Lock. Not quite ready for prime time. 6497 
Injection of analog dither? 6497 
Subliminal signal 6497 
The idea of analog randomanization. 6497 
Okay, what Avicena Power Generator 6497 
I hope you will be hearing about it. 6496 
Avicenna = Arabian 6496 
Persian, not Arab 6496 
The “second solution” - a major disappointment 6496 
More words to describe "sux" please 6496 
Revolution 6496 
The non-melodramatic DHT? 6496 
One-stage DHTs 6495 
One other thing 6495 
One stage 6495 
Brewing, thinking and heating 6495 
Physical characteristics of electronic devices 6495 
I see the things differently. 6495 
Don't waste time being "creative" 6495 
The audiophile attitude 6495 
The where and why of design choices 6495 
Blah blah blah 6495 
Laconic Clarity vs. Comfort vs. Nostalgia 6495 
Do I need to be hissing? 6495 
...associated with lack of neutrality and colorati... 6495 
John Broskie's Partial feedback amplifier 6495 
Randomness vs. freedom and the Homework # 4334 6494 
What is randomness? 6494 
Those least three possibilities… 6494 
Randomness and Music's Prerogative 6494 
It works, … sort of. The revolution is canceled. 6494 
Thorsten Loesch’s article about DHT SETs 6492 
A Beautiful Mind 6491 
Some summary and conclusions from the first phase. 6489 
Second phase: revising requirement for my DHT objectives. 6474 
Tubes for your DHT amp 6474 
Abandoning Milq? 6474 
Will see how it goes.... 6474 
Single-stage Milq vs. Sun Audio VT-2A3 6472 
Topology and 2A3? 6472 
6SN7-2A3 amps? 6472 
Type Casting 6472 
Sun Audio SV-2A3 6472 
6sn7-2a3 6472 
Topology vs parts 6472 
For a DHT amp, you are listening to the power supply 6472 
The vintage tubes syndrome. 6472 
Parts Frenzy 6472 
Too many new sounds 6472 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6471 
New tubes 6470 
Milq bias vs. batery bias 6470 
The batteries are a tricky thing. 6470 
Swimming the ocean at night? 6470 
New 2A3 6470 
To kill of do not kill the capacitor. 6469 
The JJ Electronic amp. 6468 
JJ 2A3 and amp 6468 
Czech tubes 6466 
Single plated vs Double plated? 6466 
Mono plate 2A3 tubes 6466 
I suggested once VT52 tube 6465 
The 800R vs. 1800R vs. 5500R 6465 
YO-186 as the output tube. 6462 
Here she is. 6461 
Some talks about the new production tubes 6457 
New 2A3 tubes 6457 
Some thoughts about one-IHT vs. multiple-DHT 6457 
The Sun Audio with 6E5P 6456 
Multistage DHT circuits 6455 
Wrong tube or wrong topology – here is the question. 6454 
Emission Labs 2A3 6454 
Some comment and questions about then 2A3 talks. 6454 
Which Chinese 2A3? 6454 
OK, for a first time I like the San Audio Kit. 6454 
The YO186 Strip Show 6454 
More on the 2A3 comparisons 6453 
It will be interesting…. 6453 
OPT impedence 6453 
More about the Plate Loading 6453 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6448 
2A3 data 6448 
The New 2A3 tubes 6448 
How many stages I need for 110dB sensitivity, smal... 6448 
How many stages and why... and who makes that 45 o... 6447 
Everything about everything. 6447 
Some very good points... and... possibly more logi... 6447 
Options, options, options.... 6447 
I think we agree overall 6447 
An IDHT with more gain? 6446 
You don't ask for much now, eh? 6446 
2A3 tube impressions 6441 
Interesting analogy 6441 
NOS 2A3 tubes versus new tubes 6441 
Hmmm, let me try this one again... 6441 
Sylvania 2A3 identification 6441 
A picture is worth a thousand micromhos? 6441 
I have more interest in the period tubes 6441 
Why NOS tubes? 6440 
The Holly Ignorance 6440 
Tube tasting 6440 
The cathodes’ flatulence? 6440 
Make mine thoriated please 6440 
Any Germans out there? 6440 
6E5P VS 6E6P 6440 
Vibrations? What do you with them? 6440 
Vibration in tubes and sounds 6440 
UX4 vs UX4ruskie 6439 
Ringing the tubes? I do not know how about that. 6439 
Tube sound and vibration 6439 
The thoughts collection about YO186? 6433 
The lights look green for the YO tube 6432 
"Melquiades" with YO-186. Something like... 6432 
My version of RE-604 and PX4 6431 
The YO186 tube sockets. 6431 
B4/B5 British made 6430 
The YO186’s sockets and prices 6430 
DHT 2A3 amplifier rectification 6429 
My attitude toward tube rectification. 6429 
Tu-be or not Tu-be, seems Tu-be the question. 6428 
It looks like DHT DSET is shaping up. 6427 
The Sylvania 2A3 NOS report 6424 
The Citizen Kane syndrome. 6424 
Sylvania 2A3 in a World without Color 6423 
Are NOS and new manufacture comparing oranges to o... 6423 
That all is incorrect in a way…. 6423 
NOS vs new 2A3 tubes 6423 
The identical operation environment? 6423 
Preferred 2A3 operating point 6423 
The sound of the 2A3 however? 6423 
Circuit modification for 2A3 optimization 6422 
How to get max power from 2A3 6422 
2A3 voltages, loads and realized output power 6422 
Optimal operation of 2A3: an experiment 6422 
Tubes, Whole Circuits, Expectations and Sound 6422 
Gain is not power. 6422 
2A3 amplifier modification & Optimization 6422 
Specialized DSET approach 6422 
6C33/2A3 DSET? 6422 
SET usable power and making the most of it 6422 
The 2A3 loading 6422 
DSET solution for EdgarHorn? 6422 
Optimizing the 2A3 6422 
How much to DSET a DSET 6422 
DSET for Titan 6422 
The Best of All Worlds 6422 
Multiamp setup 6421 
Optimizing the (NOS) 2A3... "KM-style"? 6421 
There are many opportunities, it all depends what ... 6421 
Modifying amplifer to optimize NOS 2A3 performance 6421 
Conceptualizing Melquiades DSET is done 6415 
2A3 and 400V supply 6415 
Pudding and the chicken wires 6414 
Another shot at numbers 6414 
How to cook the "uninformed" anode. 6414 
Okay, so this might work.... 6414 
The DHT Milq DSET, the prebuilt draft. 6414 
Looks good, but.... 6413 
2A3 with slightly lover filament voltage? 6413 
Less is more... usually. 6413 
Where to burn gain? how? and where to get beter st... 6412 
Stepping Out 6412 
Said to be good, but 6412 
Gain to lose 6412 
Why nothing is simple with this damn amp! 6412 
Another idea for losing gain 6412 
What's best 6412 
Options, options... 6412 
Actually, it is not so bad. 6412 
Other compromises... 6411 
Cathode vs. fixed with DHT 6410 
Is it glowing yet? 6390 
It is comming.... 6390 
The new MF channel. 6384 
I started to work on the Milq’s DHT Island. 6383 
Innerstage loading vs. OPT loading. 6375 
The intestage loading talk. 6372 
My playback feels like it is broken. 6367 
1 in 50? 6367 
Yes, it was after PP2000 6367 
Die Walküre soldering. 6366 
The post Die Walküre soldering 6365 
Another amp arond YO186 6364 
Gain? 6364 
The Unexpected problem with DHT Milq. 6364 
Simple is good 6363 
Ok, I am moving forward. 6363 
The Milq DSET is up. 6362 
My DH DSET – 2 days later. 6360 
Here is more data to reconcile. 6360 
Hm, that is interesting and unpleasant so far. 6359 
Ok, what do I want? 6359 
Let Go of Some Conceptual "Restrictions"? 6359 
The Milq DH DSET, the further thoughts in progress. 6359 
Crunching Numbers; Shaping Sound 6359 
How about the tweeter? 6358 
Tweeter Efficiency? 6358 
Safe and Sound 6358 
More mystery with tweeter but still on the subject. 6358 
Some clarifications. 6358 
How about that?!!! 6358 
Further considerations: DC-coupling. 6356 
Head Room 6356 
To kill the mandatory 13dB 6355 
DC coupling and killing 13db and driving 6e5p miller and.... 6355 
I do not think that it might be damaging… 6355 
Again with the PS 6355 
AKA J.C. Morrison’s amp but… 6353 
Parallel Universe 6353 
Melquiades HD MF DSET, Draft13. 6351 
Why I let other people build them... 6351 
Ok, it's going to right direction. 6351 
Ok, it looks already very close…. 6350 
The Loftinish-Whitish, well sort of…. 6347 
MF: the pre-final version. 6347 
Loftin-White? 6347 
Did anyone hear the PX4 amplifiers? 6347 
What Could use Improving at This Point? 6347 
The Milq’s MF front-end is done 6343 
Why I Let Other People Build Them, II 6343 
Define really quiet 6342 
Another variable of sound 6342 
Backlash? 6342 
Alternative filament supplies 6342 
I kind of faced a problem with AC 6342 
Going down the DC path 6341 
It is not about the “whole sound” but about “molec... 6341 
Molecular sound 6341 
AC-DC heater supply 6341 
The Tentlabs are $10 worth PS. 6341 
The unexpected resolution of AC vs. DC quandary. 6341 
The devil is less scared than it depicted. 6341 
Hiss or Hum 6341 
AC transformers 6341 
I have seen the Promised Land 6340 
OK, the choke noise is not a problem anymore 6340 
Ok, it is working fine but… 6339 
Divide and Conquer 6339 
The design phase is over. 6338 
The unexpected insanity! 6337 
Loading 6337 
Looking for inspiring ideas for 'universal' loadin... 6337 
A filaments Sherlock Holmes wanted. 6337 
Going the Distance 6337 
Read the f*** manual! 6337 
Agreed. 6337 
I agree 6337 
The filament transformer 6337 
Center-tap and options 6337 
Something like this…. 6337 
Avoiding "Dial-an-Amp" 6337 
The foreplay is going on. 6337 
Split balance 6336 
Further thoughts about my DH filaments 6336 
The Shuguang 2A3 tubes. 6336 
SHuguang 6336 
Going through…. 6335 
The 2.5V noise vs. 4V noise. 6334 
More about Shuguang 2A3C 6334 
Hum vs voltage 6334 
Meow about the tubes… 6334 
To Be a Content Cat 6334 
Completed! 6331 
Tradition 6331 
Absolutely beautiful! 6331 
The 'film' caps in PS 6330 
Science or religion 6330 
Mass Extinction 6330 
Electrolytics, technology and time 6330 
No more questions about PS capacitors. 6330 
Capacitor choices 6330 
Good time. Welcome back. Thanks God. 6329 
The minor day of Quartets. 6329 
Them's the Breaks 6329 
Eventually! 6328 
So Soon? 6328 
DHT MF channel and 6-ch amp: first conclusions 6328 
All Abuzz about Nothing 6327 
The wire for DC-coupling 6327 
The Dirt on DIY Backlash 6327 
DSET vs. the “better tubes”. 6327 
How to test the DH tubes properly? 6326 
Pairing up tubes for SE use 6325 
The DHT live reserve 6324 
Some interestng models 6324 
Eaten alive. 6324 
The tubey déjà vu? 6323 
The new concept of my output transformer. 6319 
The 4V takes a lead. 6315 
Listening the DH and the striped down version of M... 6312 
I kind of slowly learn what I need. 6312 
More HF from a transformer and DHT? 6310 
Since You Don't Need the Gain 6309 
Exiting the design mode? 6309 
Bye-bye the input divider on MF! 6309 
A few steps back and a gaint leap ahead. 6305 
Single-stage vs. DHT amp. 6304 
Setting up the new Playback 6303 
And the winner is… so far 6300 
If you like type 45... 6300 
Type 45... they're not all the same 6300 
Favorite Flavor? 6300 
The 45 times Meow... 6300 
The problem that I see is… 6300 
Running the 45 6300 
The 10Y...and bye bye Newton 6299 
The commentaries about everything. 6299 
Driver tube and biasing 6299 
DHT drivers 6299 
The ideas are worth trying? 6299 
A question about the polishing the things…. 6295 
The Particular Tube, I'm afraid... 6295 
Driving the 45... cathode first 6294 
ST or Globe; old or new... 6294 
Whatever sticks to the wall as an operation point ... 6294 
The attenuating crap in secondary. 6294 
Operating points and cathode current 6294 
The Burgeoning Opportunities! 6294 
Actually it is not so simple. 6294 
Resistors at the front 6293 
A minor alternation of a position 6293 
The era of enlightenment. 6290 
The devil is in the details.... 6290 
Constructing Sound 6290 
A new view on the DHT evaluation. 6289 
The “strange” YO186 6280 
The dead guy’s lessons. 6235 
2S4S and 2A3 6226 
Ho to use the YO186 6219 
YO 186 fundamental flavor 6219 
The YO-YO tube and "fundamentals" channel 6219 
The live without the YO186, again.... 6217 
Not anymore! 6206 
The very good YoYonisation! 6205 
….above and below two very clean channel. 6204 
The DHT and esoteric imaging deformation. 6191 
DHT, YO186, or??? 6191 
I had no idea how ‘different’ it is. 6138 
The Kazitsky Manufacturing and YO104, some history. 6137 
"Absolution and Eternal Refuge." 6134 
Sofia Electric Type 45 Mesh 6124 
The true association of YO186's Sounds. 5886 
All the Best from Burgundy 5886 
Cheesy tubes 5885 
Me and my DHT references… 5776 
Y0-186 in winter. 5679 
Y0-186 sounds like… 5678 
Rethinking the YO186 tube. 5647 
In My Dreams 5647 
Grunt from type 45? A ridicules comment. 5647 
Blame? 5646 
When good is not good enough. 5646 
45s, Drivers, and 45s 5646 
Hm, that was so simple after all! 5645 
How the YO186 was used. 5229 
What is old is new? 5228 
YO186 vs. type 45. 5227 
The YO186 is gone.... :-( 4776 
That sucks. 4776 
YO186 4774 
Hm, what the hell is going on? 4774 
I do not think that anybody but me would like YO186 4774 
A hallucination? 4771 
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