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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 6539 
One-stage Milq++ and the DHT's alleged tone 6538 
DHT Milq? 6538 
The DHT journey. 6538 
DHT tone 6538 
Well, why not? 6537 
Holding the Fort 6537 
My DHT experiment: Preface 6537 
Input tube and DC heaters 6536 
Reimyo Pat 777 6536 
My DHT experiment: Observations 6532 
DHT or 300B? 6532 
300B 6532 
Talking, perception and the grounds for objectively 6532 
The Wine Via the Wine Glass 6531 
Hence the confusion 6531 
My DHT experiment: some conclusions. 6531 
Reality Reconstruction is not a functionality. 6531 
My experience with DHTs 6531 
Pigmented coloration? 6531 
Dht-dht 6531 
Dynamic viscosity? 6531 
The Pallette preamp... 6531 
If one DHT is good, two must be better? 6531 
"soul" of tubes 6531 
There is a difference... 6531 
Vibration injection? 6531 
Homework # 4334 6531 
The 01A-71A-10Y-45 chain 6531 
Old valves have more soul! 6530 
Was it soul or soil? 6530 
It was just a heading 6530 
Adjustable color: TIMBRE LOCK? 6530 
Neutral or neutral/uncoloured? 6530 
..are lacking in power, dynamics and bandwidth. 6530 
Timbre-Lock. Not quite ready for prime time. 6530 
Injection of analog dither? 6530 
Subliminal signal 6530 
The idea of analog randomanization. 6530 
Okay, what Avicena Power Generator 6530 
I hope you will be hearing about it. 6529 
Avicenna = Arabian 6529 
Persian, not Arab 6529 
The “second solution” - a major disappointment 6529 
More words to describe "sux" please 6529 
Revolution 6529 
The non-melodramatic DHT? 6529 
One-stage DHTs 6528 
One other thing 6528 
One stage 6528 
Brewing, thinking and heating 6528 
Physical characteristics of electronic devices 6528 
I see the things differently. 6528 
Don't waste time being "creative" 6528 
The audiophile attitude 6528 
The where and why of design choices 6528 
Blah blah blah 6528 
Laconic Clarity vs. Comfort vs. Nostalgia 6528 
Do I need to be hissing? 6528 
...associated with lack of neutrality and colorati... 6528 
John Broskie's Partial feedback amplifier 6528 
Randomness vs. freedom and the Homework # 4334 6527 
What is randomness? 6527 
Those least three possibilities… 6527 
Randomness and Music's Prerogative 6527 
It works, … sort of. The revolution is canceled. 6527 
Thorsten Loesch’s article about DHT SETs 6525 
A Beautiful Mind 6524 
Some summary and conclusions from the first phase. 6522 
Second phase: revising requirement for my DHT objectives. 6507 
Tubes for your DHT amp 6507 
Abandoning Milq? 6507 
Will see how it goes.... 6507 
Single-stage Milq vs. Sun Audio VT-2A3 6505 
Topology and 2A3? 6505 
6SN7-2A3 amps? 6505 
Type Casting 6505 
Sun Audio SV-2A3 6505 
6sn7-2a3 6505 
Topology vs parts 6505 
For a DHT amp, you are listening to the power supply 6505 
The vintage tubes syndrome. 6505 
Parts Frenzy 6505 
Too many new sounds 6505 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6504 
New tubes 6503 
Milq bias vs. batery bias 6503 
The batteries are a tricky thing. 6503 
Swimming the ocean at night? 6503 
New 2A3 6503 
To kill of do not kill the capacitor. 6502 
The JJ Electronic amp. 6501 
JJ 2A3 and amp 6501 
Czech tubes 6499 
Single plated vs Double plated? 6499 
Mono plate 2A3 tubes 6499 
I suggested once VT52 tube 6498 
The 800R vs. 1800R vs. 5500R 6498 
YO-186 as the output tube. 6495 
Here she is. 6494 
Some talks about the new production tubes 6490 
New 2A3 tubes 6490 
Some thoughts about one-IHT vs. multiple-DHT 6490 
The Sun Audio with 6E5P 6489 
Multistage DHT circuits 6488 
Wrong tube or wrong topology – here is the question. 6487 
Emission Labs 2A3 6487 
Some comment and questions about then 2A3 talks. 6487 
Which Chinese 2A3? 6487 
OK, for a first time I like the San Audio Kit. 6487 
The YO186 Strip Show 6487 
More on the 2A3 comparisons 6486 
It will be interesting…. 6486 
OPT impedence 6486 
More about the Plate Loading 6486 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6481 
2A3 data 6481 
The New 2A3 tubes 6481 
How many stages I need for 110dB sensitivity, smal... 6481 
How many stages and why... and who makes that 45 o... 6480 
Everything about everything. 6480 
Some very good points... and... possibly more logi... 6480 
Options, options, options.... 6480 
I think we agree overall 6480 
An IDHT with more gain? 6479 
You don't ask for much now, eh? 6479 
2A3 tube impressions 6474 
Interesting analogy 6474 
NOS 2A3 tubes versus new tubes 6474 
Hmmm, let me try this one again... 6474 
Sylvania 2A3 identification 6474 
A picture is worth a thousand micromhos? 6474 
I have more interest in the period tubes 6474 
Why NOS tubes? 6473 
The Holly Ignorance 6473 
Tube tasting 6473 
The cathodes’ flatulence? 6473 
Make mine thoriated please 6473 
Any Germans out there? 6473 
6E5P VS 6E6P 6473 
Vibrations? What do you with them? 6473 
Vibration in tubes and sounds 6473 
UX4 vs UX4ruskie 6472 
Ringing the tubes? I do not know how about that. 6472 
Tube sound and vibration 6472 
The thoughts collection about YO186? 6466 
The lights look green for the YO tube 6465 
"Melquiades" with YO-186. Something like... 6465 
My version of RE-604 and PX4 6464 
The YO186 tube sockets. 6464 
B4/B5 British made 6463 
The YO186’s sockets and prices 6463 
DHT 2A3 amplifier rectification 6462 
My attitude toward tube rectification. 6462 
Tu-be or not Tu-be, seems Tu-be the question. 6461 
It looks like DHT DSET is shaping up. 6460 
The Sylvania 2A3 NOS report 6457 
The Citizen Kane syndrome. 6457 
Sylvania 2A3 in a World without Color 6456 
Are NOS and new manufacture comparing oranges to o... 6456 
That all is incorrect in a way…. 6456 
NOS vs new 2A3 tubes 6456 
The identical operation environment? 6456 
Preferred 2A3 operating point 6456 
The sound of the 2A3 however? 6456 
Circuit modification for 2A3 optimization 6455 
How to get max power from 2A3 6455 
2A3 voltages, loads and realized output power 6455 
Optimal operation of 2A3: an experiment 6455 
Tubes, Whole Circuits, Expectations and Sound 6455 
Gain is not power. 6455 
2A3 amplifier modification & Optimization 6455 
Specialized DSET approach 6455 
6C33/2A3 DSET? 6455 
SET usable power and making the most of it 6455 
The 2A3 loading 6455 
DSET solution for EdgarHorn? 6455 
Optimizing the 2A3 6455 
How much to DSET a DSET 6455 
DSET for Titan 6455 
The Best of All Worlds 6455 
Multiamp setup 6454 
Optimizing the (NOS) 2A3... "KM-style"? 6454 
There are many opportunities, it all depends what ... 6454 
Modifying amplifer to optimize NOS 2A3 performance 6454 
Conceptualizing Melquiades DSET is done 6448 
2A3 and 400V supply 6448 
Pudding and the chicken wires 6447 
Another shot at numbers 6447 
How to cook the "uninformed" anode. 6447 
Okay, so this might work.... 6447 
The DHT Milq DSET, the prebuilt draft. 6447 
Looks good, but.... 6446 
2A3 with slightly lover filament voltage? 6446 
Less is more... usually. 6446 
Where to burn gain? how? and where to get beter st... 6445 
Stepping Out 6445 
Said to be good, but 6445 
Gain to lose 6445 
Why nothing is simple with this damn amp! 6445 
Another idea for losing gain 6445 
What's best 6445 
Options, options... 6445 
Actually, it is not so bad. 6445 
Other compromises... 6444 
Cathode vs. fixed with DHT 6443 
Is it glowing yet? 6423 
It is comming.... 6423 
The new MF channel. 6417 
I started to work on the Milq’s DHT Island. 6416 
Innerstage loading vs. OPT loading. 6408 
The intestage loading talk. 6405 
My playback feels like it is broken. 6400 
1 in 50? 6400 
Yes, it was after PP2000 6400 
Die Walküre soldering. 6399 
The post Die Walküre soldering 6398 
Another amp arond YO186 6397 
Gain? 6397 
The Unexpected problem with DHT Milq. 6397 
Simple is good 6396 
Ok, I am moving forward. 6396 
The Milq DSET is up. 6395 
My DH DSET – 2 days later. 6393 
Here is more data to reconcile. 6393 
Hm, that is interesting and unpleasant so far. 6392 
Ok, what do I want? 6392 
Let Go of Some Conceptual "Restrictions"? 6392 
The Milq DH DSET, the further thoughts in progress. 6392 
Crunching Numbers; Shaping Sound 6392 
How about the tweeter? 6391 
Tweeter Efficiency? 6391 
Safe and Sound 6391 
More mystery with tweeter but still on the subject. 6391 
Some clarifications. 6391 
How about that?!!! 6391 
Further considerations: DC-coupling. 6389 
Head Room 6389 
To kill the mandatory 13dB 6388 
DC coupling and killing 13db and driving 6e5p miller and.... 6388 
I do not think that it might be damaging… 6388 
Again with the PS 6388 
AKA J.C. Morrison’s amp but… 6386 
Parallel Universe 6386 
Melquiades HD MF DSET, Draft13. 6384 
Why I let other people build them... 6384 
Ok, it's going to right direction. 6384 
Ok, it looks already very close…. 6383 
The Loftinish-Whitish, well sort of…. 6380 
MF: the pre-final version. 6380 
Loftin-White? 6380 
Did anyone hear the PX4 amplifiers? 6380 
What Could use Improving at This Point? 6380 
The Milq’s MF front-end is done 6376 
Why I Let Other People Build Them, II 6376 
Define really quiet 6375 
Another variable of sound 6375 
Backlash? 6375 
Alternative filament supplies 6375 
I kind of faced a problem with AC 6375 
Going down the DC path 6374 
It is not about the “whole sound” but about “molec... 6374 
Molecular sound 6374 
AC-DC heater supply 6374 
The Tentlabs are $10 worth PS. 6374 
The unexpected resolution of AC vs. DC quandary. 6374 
The devil is less scared than it depicted. 6374 
Hiss or Hum 6374 
AC transformers 6374 
I have seen the Promised Land 6373 
OK, the choke noise is not a problem anymore 6373 
Ok, it is working fine but… 6372 
Divide and Conquer 6372 
The design phase is over. 6371 
The unexpected insanity! 6370 
Loading 6370 
Looking for inspiring ideas for 'universal' loadin... 6370 
A filaments Sherlock Holmes wanted. 6370 
Going the Distance 6370 
Read the f*** manual! 6370 
Agreed. 6370 
I agree 6370 
The filament transformer 6370 
Center-tap and options 6370 
Something like this…. 6370 
Avoiding "Dial-an-Amp" 6370 
The foreplay is going on. 6370 
Split balance 6369 
Further thoughts about my DH filaments 6369 
The Shuguang 2A3 tubes. 6369 
SHuguang 6369 
Going through…. 6368 
The 2.5V noise vs. 4V noise. 6367 
More about Shuguang 2A3C 6367 
Hum vs voltage 6367 
Meow about the tubes… 6367 
To Be a Content Cat 6367 
Completed! 6364 
Tradition 6364 
Absolutely beautiful! 6364 
The 'film' caps in PS 6363 
Science or religion 6363 
Mass Extinction 6363 
Electrolytics, technology and time 6363 
No more questions about PS capacitors. 6363 
Capacitor choices 6363 
Good time. Welcome back. Thanks God. 6362 
The minor day of Quartets. 6362 
Them's the Breaks 6362 
Eventually! 6361 
So Soon? 6361 
DHT MF channel and 6-ch amp: first conclusions 6361 
All Abuzz about Nothing 6360 
The wire for DC-coupling 6360 
The Dirt on DIY Backlash 6360 
DSET vs. the “better tubes”. 6360 
How to test the DH tubes properly? 6359 
Pairing up tubes for SE use 6358 
The DHT live reserve 6357 
Some interestng models 6357 
Eaten alive. 6357 
The tubey déjà vu? 6356 
The new concept of my output transformer. 6352 
The 4V takes a lead. 6348 
Listening the DH and the striped down version of M... 6345 
I kind of slowly learn what I need. 6345 
More HF from a transformer and DHT? 6343 
Since You Don't Need the Gain 6342 
Exiting the design mode? 6342 
Bye-bye the input divider on MF! 6342 
A few steps back and a gaint leap ahead. 6338 
Single-stage vs. DHT amp. 6337 
Setting up the new Playback 6336 
And the winner is… so far 6333 
If you like type 45... 6333 
Type 45... they're not all the same 6333 
Favorite Flavor? 6333 
The 45 times Meow... 6333 
The problem that I see is… 6333 
Running the 45 6333 
The 10Y...and bye bye Newton 6332 
The commentaries about everything. 6332 
Driver tube and biasing 6332 
DHT drivers 6332 
The ideas are worth trying? 6332 
A question about the polishing the things…. 6328 
The Particular Tube, I'm afraid... 6328 
Driving the 45... cathode first 6327 
ST or Globe; old or new... 6327 
Whatever sticks to the wall as an operation point ... 6327 
The attenuating crap in secondary. 6327 
Operating points and cathode current 6327 
The Burgeoning Opportunities! 6327 
Actually it is not so simple. 6327 
Resistors at the front 6326 
A minor alternation of a position 6326 
The era of enlightenment. 6323 
The devil is in the details.... 6323 
Constructing Sound 6323 
A new view on the DHT evaluation. 6322 
The “strange” YO186 6313 
The dead guy’s lessons. 6268 
2S4S and 2A3 6259 
Ho to use the YO186 6252 
YO 186 fundamental flavor 6252 
The YO-YO tube and "fundamentals" channel 6252 
The live without the YO186, again.... 6250 
Not anymore! 6239 
The very good YoYonisation! 6238 
….above and below two very clean channel. 6237 
The DHT and esoteric imaging deformation. 6224 
DHT, YO186, or??? 6224 
I had no idea how ‘different’ it is. 6171 
The Kazitsky Manufacturing and YO104, some history. 6170 
"Absolution and Eternal Refuge." 6167 
Sofia Electric Type 45 Mesh 6157 
The true association of YO186's Sounds. 5919 
All the Best from Burgundy 5919 
Cheesy tubes 5918 
Me and my DHT references… 5809 
Y0-186 in winter. 5712 
Y0-186 sounds like… 5711 
Rethinking the YO186 tube. 5680 
In My Dreams 5680 
Grunt from type 45? A ridicules comment. 5680 
Blame? 5679 
When good is not good enough. 5679 
45s, Drivers, and 45s 5679 
Hm, that was so simple after all! 5678 
How the YO186 was used. 5262 
What is old is new? 5261 
YO186 vs. type 45. 5260 
The YO186 is gone.... :-( 4809 
That sucks. 4809 
YO186 4807 
Hm, what the hell is going on? 4807 
I do not think that anybody but me would like YO186 4807 
A hallucination? 4804 
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