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Site News: 26 Aug 2026

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
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Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Single-stage Melquiades vs. DHT amps 6563 
One-stage Milq++ and the DHT's alleged tone 6562 
DHT Milq? 6562 
The DHT journey. 6562 
DHT tone 6562 
Well, why not? 6561 
Holding the Fort 6561 
My DHT experiment: Preface 6561 
Input tube and DC heaters 6560 
Reimyo Pat 777 6560 
My DHT experiment: Observations 6556 
DHT or 300B? 6556 
300B 6556 
Talking, perception and the grounds for objectively 6556 
The Wine Via the Wine Glass 6555 
Hence the confusion 6555 
My DHT experiment: some conclusions. 6555 
Reality Reconstruction is not a functionality. 6555 
My experience with DHTs 6555 
Pigmented coloration? 6555 
Dht-dht 6555 
Dynamic viscosity? 6555 
The Pallette preamp... 6555 
If one DHT is good, two must be better? 6555 
"soul" of tubes 6555 
There is a difference... 6555 
Vibration injection? 6555 
Homework # 4334 6555 
The 01A-71A-10Y-45 chain 6555 
Old valves have more soul! 6554 
Was it soul or soil? 6554 
It was just a heading 6554 
Adjustable color: TIMBRE LOCK? 6554 
Neutral or neutral/uncoloured? 6554 
..are lacking in power, dynamics and bandwidth. 6554 
Timbre-Lock. Not quite ready for prime time. 6554 
Injection of analog dither? 6554 
Subliminal signal 6554 
The idea of analog randomanization. 6554 
Okay, what Avicena Power Generator 6554 
I hope you will be hearing about it. 6553 
Avicenna = Arabian 6553 
Persian, not Arab 6553 
The “second solution” - a major disappointment 6553 
More words to describe "sux" please 6553 
Revolution 6553 
The non-melodramatic DHT? 6553 
One-stage DHTs 6552 
One other thing 6552 
One stage 6552 
Brewing, thinking and heating 6552 
Physical characteristics of electronic devices 6552 
I see the things differently. 6552 
Don't waste time being "creative" 6552 
The audiophile attitude 6552 
The where and why of design choices 6552 
Blah blah blah 6552 
Laconic Clarity vs. Comfort vs. Nostalgia 6552 
Do I need to be hissing? 6552 
...associated with lack of neutrality and colorati... 6552 
John Broskie's Partial feedback amplifier 6552 
Randomness vs. freedom and the Homework # 4334 6551 
What is randomness? 6551 
Those least three possibilities… 6551 
Randomness and Music's Prerogative 6551 
It works, … sort of. The revolution is canceled. 6551 
Thorsten Loesch’s article about DHT SETs 6549 
A Beautiful Mind 6548 
Some summary and conclusions from the first phase. 6546 
Second phase: revising requirement for my DHT objectives. 6531 
Tubes for your DHT amp 6531 
Abandoning Milq? 6531 
Will see how it goes.... 6531 
Single-stage Milq vs. Sun Audio VT-2A3 6529 
Topology and 2A3? 6529 
6SN7-2A3 amps? 6529 
Type Casting 6529 
Sun Audio SV-2A3 6529 
6sn7-2a3 6529 
Topology vs parts 6529 
For a DHT amp, you are listening to the power supply 6529 
The vintage tubes syndrome. 6529 
Parts Frenzy 6529 
Too many new sounds 6529 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6528 
New tubes 6527 
Milq bias vs. batery bias 6527 
The batteries are a tricky thing. 6527 
Swimming the ocean at night? 6527 
New 2A3 6527 
To kill of do not kill the capacitor. 6526 
The JJ Electronic amp. 6525 
JJ 2A3 and amp 6525 
Czech tubes 6523 
Single plated vs Double plated? 6523 
Mono plate 2A3 tubes 6523 
I suggested once VT52 tube 6522 
The 800R vs. 1800R vs. 5500R 6522 
YO-186 as the output tube. 6519 
Here she is. 6518 
Some talks about the new production tubes 6514 
New 2A3 tubes 6514 
Some thoughts about one-IHT vs. multiple-DHT 6514 
The Sun Audio with 6E5P 6513 
Multistage DHT circuits 6512 
Wrong tube or wrong topology – here is the question. 6511 
Emission Labs 2A3 6511 
Some comment and questions about then 2A3 talks. 6511 
Which Chinese 2A3? 6511 
OK, for a first time I like the San Audio Kit. 6511 
The YO186 Strip Show 6511 
More on the 2A3 comparisons 6510 
It will be interesting…. 6510 
OPT impedence 6510 
More about the Plate Loading 6510 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6505 
2A3 data 6505 
The New 2A3 tubes 6505 
How many stages I need for 110dB sensitivity, smal... 6505 
How many stages and why... and who makes that 45 o... 6504 
Everything about everything. 6504 
Some very good points... and... possibly more logi... 6504 
Options, options, options.... 6504 
I think we agree overall 6504 
An IDHT with more gain? 6503 
You don't ask for much now, eh? 6503 
2A3 tube impressions 6498 
Interesting analogy 6498 
NOS 2A3 tubes versus new tubes 6498 
Hmmm, let me try this one again... 6498 
Sylvania 2A3 identification 6498 
A picture is worth a thousand micromhos? 6498 
I have more interest in the period tubes 6498 
Why NOS tubes? 6497 
The Holly Ignorance 6497 
Tube tasting 6497 
The cathodes’ flatulence? 6497 
Make mine thoriated please 6497 
Any Germans out there? 6497 
6E5P VS 6E6P 6497 
Vibrations? What do you with them? 6497 
Vibration in tubes and sounds 6497 
UX4 vs UX4ruskie 6496 
Ringing the tubes? I do not know how about that. 6496 
Tube sound and vibration 6496 
The thoughts collection about YO186? 6490 
The lights look green for the YO tube 6489 
"Melquiades" with YO-186. Something like... 6489 
My version of RE-604 and PX4 6488 
The YO186 tube sockets. 6488 
B4/B5 British made 6487 
The YO186’s sockets and prices 6487 
DHT 2A3 amplifier rectification 6486 
My attitude toward tube rectification. 6486 
Tu-be or not Tu-be, seems Tu-be the question. 6485 
It looks like DHT DSET is shaping up. 6484 
The Sylvania 2A3 NOS report 6481 
The Citizen Kane syndrome. 6481 
Sylvania 2A3 in a World without Color 6480 
Are NOS and new manufacture comparing oranges to o... 6480 
That all is incorrect in a way…. 6480 
NOS vs new 2A3 tubes 6480 
The identical operation environment? 6480 
Preferred 2A3 operating point 6480 
The sound of the 2A3 however? 6480 
Circuit modification for 2A3 optimization 6479 
How to get max power from 2A3 6479 
2A3 voltages, loads and realized output power 6479 
Optimal operation of 2A3: an experiment 6479 
Tubes, Whole Circuits, Expectations and Sound 6479 
Gain is not power. 6479 
2A3 amplifier modification & Optimization 6479 
Specialized DSET approach 6479 
6C33/2A3 DSET? 6479 
SET usable power and making the most of it 6479 
The 2A3 loading 6479 
DSET solution for EdgarHorn? 6479 
Optimizing the 2A3 6479 
How much to DSET a DSET 6479 
DSET for Titan 6479 
The Best of All Worlds 6479 
Multiamp setup 6478 
Optimizing the (NOS) 2A3... "KM-style"? 6478 
There are many opportunities, it all depends what ... 6478 
Modifying amplifer to optimize NOS 2A3 performance 6478 
Conceptualizing Melquiades DSET is done 6472 
2A3 and 400V supply 6472 
Pudding and the chicken wires 6471 
Another shot at numbers 6471 
How to cook the "uninformed" anode. 6471 
Okay, so this might work.... 6471 
The DHT Milq DSET, the prebuilt draft. 6471 
Looks good, but.... 6470 
2A3 with slightly lover filament voltage? 6470 
Less is more... usually. 6470 
Where to burn gain? how? and where to get beter st... 6469 
Stepping Out 6469 
Said to be good, but 6469 
Gain to lose 6469 
Why nothing is simple with this damn amp! 6469 
Another idea for losing gain 6469 
What's best 6469 
Options, options... 6469 
Actually, it is not so bad. 6469 
Other compromises... 6468 
Cathode vs. fixed with DHT 6467 
Is it glowing yet? 6447 
It is comming.... 6447 
The new MF channel. 6441 
I started to work on the Milq’s DHT Island. 6440 
Innerstage loading vs. OPT loading. 6432 
The intestage loading talk. 6429 
My playback feels like it is broken. 6424 
1 in 50? 6424 
Yes, it was after PP2000 6424 
Die Walküre soldering. 6423 
The post Die Walküre soldering 6422 
Another amp arond YO186 6421 
Gain? 6421 
The Unexpected problem with DHT Milq. 6421 
Simple is good 6420 
Ok, I am moving forward. 6420 
The Milq DSET is up. 6419 
My DH DSET – 2 days later. 6417 
Here is more data to reconcile. 6417 
Hm, that is interesting and unpleasant so far. 6416 
Ok, what do I want? 6416 
Let Go of Some Conceptual "Restrictions"? 6416 
The Milq DH DSET, the further thoughts in progress. 6416 
Crunching Numbers; Shaping Sound 6416 
How about the tweeter? 6415 
Tweeter Efficiency? 6415 
Safe and Sound 6415 
More mystery with tweeter but still on the subject. 6415 
Some clarifications. 6415 
How about that?!!! 6415 
Further considerations: DC-coupling. 6413 
Head Room 6413 
To kill the mandatory 13dB 6412 
DC coupling and killing 13db and driving 6e5p miller and.... 6412 
I do not think that it might be damaging… 6412 
Again with the PS 6412 
AKA J.C. Morrison’s amp but… 6410 
Parallel Universe 6410 
Melquiades HD MF DSET, Draft13. 6408 
Why I let other people build them... 6408 
Ok, it's going to right direction. 6408 
Ok, it looks already very close…. 6407 
The Loftinish-Whitish, well sort of…. 6404 
MF: the pre-final version. 6404 
Loftin-White? 6404 
Did anyone hear the PX4 amplifiers? 6404 
What Could use Improving at This Point? 6404 
The Milq’s MF front-end is done 6400 
Why I Let Other People Build Them, II 6400 
Define really quiet 6399 
Another variable of sound 6399 
Backlash? 6399 
Alternative filament supplies 6399 
I kind of faced a problem with AC 6399 
Going down the DC path 6398 
It is not about the “whole sound” but about “molec... 6398 
Molecular sound 6398 
AC-DC heater supply 6398 
The Tentlabs are $10 worth PS. 6398 
The unexpected resolution of AC vs. DC quandary. 6398 
The devil is less scared than it depicted. 6398 
Hiss or Hum 6398 
AC transformers 6398 
I have seen the Promised Land 6397 
OK, the choke noise is not a problem anymore 6397 
Ok, it is working fine but… 6396 
Divide and Conquer 6396 
The design phase is over. 6395 
The unexpected insanity! 6394 
Loading 6394 
Looking for inspiring ideas for 'universal' loadin... 6394 
A filaments Sherlock Holmes wanted. 6394 
Going the Distance 6394 
Read the f*** manual! 6394 
Agreed. 6394 
I agree 6394 
The filament transformer 6394 
Center-tap and options 6394 
Something like this…. 6394 
Avoiding "Dial-an-Amp" 6394 
The foreplay is going on. 6394 
Split balance 6393 
Further thoughts about my DH filaments 6393 
The Shuguang 2A3 tubes. 6393 
SHuguang 6393 
Going through…. 6392 
The 2.5V noise vs. 4V noise. 6391 
More about Shuguang 2A3C 6391 
Hum vs voltage 6391 
Meow about the tubes… 6391 
To Be a Content Cat 6391 
Completed! 6388 
Tradition 6388 
Absolutely beautiful! 6388 
The 'film' caps in PS 6387 
Science or religion 6387 
Mass Extinction 6387 
Electrolytics, technology and time 6387 
No more questions about PS capacitors. 6387 
Capacitor choices 6387 
Good time. Welcome back. Thanks God. 6386 
The minor day of Quartets. 6386 
Them's the Breaks 6386 
Eventually! 6385 
So Soon? 6385 
DHT MF channel and 6-ch amp: first conclusions 6385 
All Abuzz about Nothing 6384 
The wire for DC-coupling 6384 
The Dirt on DIY Backlash 6384 
DSET vs. the “better tubes”. 6384 
How to test the DH tubes properly? 6383 
Pairing up tubes for SE use 6382 
The DHT live reserve 6381 
Some interestng models 6381 
Eaten alive. 6381 
The tubey déjà vu? 6380 
The new concept of my output transformer. 6376 
The 4V takes a lead. 6372 
Listening the DH and the striped down version of M... 6369 
I kind of slowly learn what I need. 6369 
More HF from a transformer and DHT? 6367 
Since You Don't Need the Gain 6366 
Exiting the design mode? 6366 
Bye-bye the input divider on MF! 6366 
A few steps back and a gaint leap ahead. 6362 
Single-stage vs. DHT amp. 6361 
Setting up the new Playback 6360 
And the winner is… so far 6357 
If you like type 45... 6357 
Type 45... they're not all the same 6357 
Favorite Flavor? 6357 
The 45 times Meow... 6357 
The problem that I see is… 6357 
Running the 45 6357 
The 10Y...and bye bye Newton 6356 
The commentaries about everything. 6356 
Driver tube and biasing 6356 
DHT drivers 6356 
The ideas are worth trying? 6356 
A question about the polishing the things…. 6352 
The Particular Tube, I'm afraid... 6352 
Driving the 45... cathode first 6351 
ST or Globe; old or new... 6351 
Whatever sticks to the wall as an operation point ... 6351 
The attenuating crap in secondary. 6351 
Operating points and cathode current 6351 
The Burgeoning Opportunities! 6351 
Actually it is not so simple. 6351 
Resistors at the front 6350 
A minor alternation of a position 6350 
The era of enlightenment. 6347 
The devil is in the details.... 6347 
Constructing Sound 6347 
A new view on the DHT evaluation. 6346 
The “strange” YO186 6337 
The dead guy’s lessons. 6292 
2S4S and 2A3 6283 
Ho to use the YO186 6276 
YO 186 fundamental flavor 6276 
The YO-YO tube and "fundamentals" channel 6276 
The live without the YO186, again.... 6274 
Not anymore! 6263 
The very good YoYonisation! 6262 
….above and below two very clean channel. 6261 
The DHT and esoteric imaging deformation. 6248 
DHT, YO186, or??? 6248 
I had no idea how ‘different’ it is. 6195 
The Kazitsky Manufacturing and YO104, some history. 6194 
"Absolution and Eternal Refuge." 6191 
Sofia Electric Type 45 Mesh 6181 
The true association of YO186's Sounds. 5943 
All the Best from Burgundy 5943 
Cheesy tubes 5942 
Me and my DHT references… 5833 
Y0-186 in winter. 5736 
Y0-186 sounds like… 5735 
Rethinking the YO186 tube. 5704 
In My Dreams 5704 
Grunt from type 45? A ridicules comment. 5704 
Blame? 5703 
When good is not good enough. 5703 
45s, Drivers, and 45s 5703 
Hm, that was so simple after all! 5702 
How the YO186 was used. 5286 
What is old is new? 5285 
YO186 vs. type 45. 5284 
The YO186 is gone.... :-( 4833 
That sucks. 4833 
YO186 4831 
Hm, what the hell is going on? 4831 
I do not think that anybody but me would like YO186 4831 
A hallucination? 4828 
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