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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 6564 
One-stage Milq++ and the DHT's alleged tone 6563 
DHT Milq? 6563 
The DHT journey. 6563 
DHT tone 6563 
Well, why not? 6562 
Holding the Fort 6562 
My DHT experiment: Preface 6562 
Input tube and DC heaters 6561 
Reimyo Pat 777 6561 
My DHT experiment: Observations 6557 
DHT or 300B? 6557 
300B 6557 
Talking, perception and the grounds for objectively 6557 
The Wine Via the Wine Glass 6556 
Hence the confusion 6556 
My DHT experiment: some conclusions. 6556 
Reality Reconstruction is not a functionality. 6556 
My experience with DHTs 6556 
Pigmented coloration? 6556 
Dht-dht 6556 
Dynamic viscosity? 6556 
The Pallette preamp... 6556 
If one DHT is good, two must be better? 6556 
"soul" of tubes 6556 
There is a difference... 6556 
Vibration injection? 6556 
Homework # 4334 6556 
The 01A-71A-10Y-45 chain 6556 
Old valves have more soul! 6555 
Was it soul or soil? 6555 
It was just a heading 6555 
Adjustable color: TIMBRE LOCK? 6555 
Neutral or neutral/uncoloured? 6555 
..are lacking in power, dynamics and bandwidth. 6555 
Timbre-Lock. Not quite ready for prime time. 6555 
Injection of analog dither? 6555 
Subliminal signal 6555 
The idea of analog randomanization. 6555 
Okay, what Avicena Power Generator 6555 
I hope you will be hearing about it. 6554 
Avicenna = Arabian 6554 
Persian, not Arab 6554 
The “second solution” - a major disappointment 6554 
More words to describe "sux" please 6554 
Revolution 6554 
The non-melodramatic DHT? 6554 
One-stage DHTs 6553 
One other thing 6553 
One stage 6553 
Brewing, thinking and heating 6553 
Physical characteristics of electronic devices 6553 
I see the things differently. 6553 
Don't waste time being "creative" 6553 
The audiophile attitude 6553 
The where and why of design choices 6553 
Blah blah blah 6553 
Laconic Clarity vs. Comfort vs. Nostalgia 6553 
Do I need to be hissing? 6553 
...associated with lack of neutrality and colorati... 6553 
John Broskie's Partial feedback amplifier 6553 
Randomness vs. freedom and the Homework # 4334 6552 
What is randomness? 6552 
Those least three possibilities… 6552 
Randomness and Music's Prerogative 6552 
It works, … sort of. The revolution is canceled. 6552 
Thorsten Loesch’s article about DHT SETs 6550 
A Beautiful Mind 6549 
Some summary and conclusions from the first phase. 6547 
Second phase: revising requirement for my DHT objectives. 6532 
Tubes for your DHT amp 6532 
Abandoning Milq? 6532 
Will see how it goes.... 6532 
Single-stage Milq vs. Sun Audio VT-2A3 6530 
Topology and 2A3? 6530 
6SN7-2A3 amps? 6530 
Type Casting 6530 
Sun Audio SV-2A3 6530 
6sn7-2a3 6530 
Topology vs parts 6530 
For a DHT amp, you are listening to the power supply 6530 
The vintage tubes syndrome. 6530 
Parts Frenzy 6530 
Too many new sounds 6530 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6529 
New tubes 6528 
Milq bias vs. batery bias 6528 
The batteries are a tricky thing. 6528 
Swimming the ocean at night? 6528 
New 2A3 6528 
To kill of do not kill the capacitor. 6527 
The JJ Electronic amp. 6526 
JJ 2A3 and amp 6526 
Czech tubes 6524 
Single plated vs Double plated? 6524 
Mono plate 2A3 tubes 6524 
I suggested once VT52 tube 6523 
The 800R vs. 1800R vs. 5500R 6523 
YO-186 as the output tube. 6520 
Here she is. 6519 
Some talks about the new production tubes 6515 
New 2A3 tubes 6515 
Some thoughts about one-IHT vs. multiple-DHT 6515 
The Sun Audio with 6E5P 6514 
Multistage DHT circuits 6513 
Wrong tube or wrong topology – here is the question. 6512 
Emission Labs 2A3 6512 
Some comment and questions about then 2A3 talks. 6512 
Which Chinese 2A3? 6512 
OK, for a first time I like the San Audio Kit. 6512 
The YO186 Strip Show 6512 
More on the 2A3 comparisons 6511 
It will be interesting…. 6511 
OPT impedence 6511 
More about the Plate Loading 6511 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6506 
2A3 data 6506 
The New 2A3 tubes 6506 
How many stages I need for 110dB sensitivity, smal... 6506 
How many stages and why... and who makes that 45 o... 6505 
Everything about everything. 6505 
Some very good points... and... possibly more logi... 6505 
Options, options, options.... 6505 
I think we agree overall 6505 
An IDHT with more gain? 6504 
You don't ask for much now, eh? 6504 
2A3 tube impressions 6499 
Interesting analogy 6499 
NOS 2A3 tubes versus new tubes 6499 
Hmmm, let me try this one again... 6499 
Sylvania 2A3 identification 6499 
A picture is worth a thousand micromhos? 6499 
I have more interest in the period tubes 6499 
Why NOS tubes? 6498 
The Holly Ignorance 6498 
Tube tasting 6498 
The cathodes’ flatulence? 6498 
Make mine thoriated please 6498 
Any Germans out there? 6498 
6E5P VS 6E6P 6498 
Vibrations? What do you with them? 6498 
Vibration in tubes and sounds 6498 
UX4 vs UX4ruskie 6497 
Ringing the tubes? I do not know how about that. 6497 
Tube sound and vibration 6497 
The thoughts collection about YO186? 6491 
The lights look green for the YO tube 6490 
"Melquiades" with YO-186. Something like... 6490 
My version of RE-604 and PX4 6489 
The YO186 tube sockets. 6489 
B4/B5 British made 6488 
The YO186’s sockets and prices 6488 
DHT 2A3 amplifier rectification 6487 
My attitude toward tube rectification. 6487 
Tu-be or not Tu-be, seems Tu-be the question. 6486 
It looks like DHT DSET is shaping up. 6485 
The Sylvania 2A3 NOS report 6482 
The Citizen Kane syndrome. 6482 
Sylvania 2A3 in a World without Color 6481 
Are NOS and new manufacture comparing oranges to o... 6481 
That all is incorrect in a way…. 6481 
NOS vs new 2A3 tubes 6481 
The identical operation environment? 6481 
Preferred 2A3 operating point 6481 
The sound of the 2A3 however? 6481 
Circuit modification for 2A3 optimization 6480 
How to get max power from 2A3 6480 
2A3 voltages, loads and realized output power 6480 
Optimal operation of 2A3: an experiment 6480 
Tubes, Whole Circuits, Expectations and Sound 6480 
Gain is not power. 6480 
2A3 amplifier modification & Optimization 6480 
Specialized DSET approach 6480 
6C33/2A3 DSET? 6480 
SET usable power and making the most of it 6480 
The 2A3 loading 6480 
DSET solution for EdgarHorn? 6480 
Optimizing the 2A3 6480 
How much to DSET a DSET 6480 
DSET for Titan 6480 
The Best of All Worlds 6480 
Multiamp setup 6479 
Optimizing the (NOS) 2A3... "KM-style"? 6479 
There are many opportunities, it all depends what ... 6479 
Modifying amplifer to optimize NOS 2A3 performance 6479 
Conceptualizing Melquiades DSET is done 6473 
2A3 and 400V supply 6473 
Pudding and the chicken wires 6472 
Another shot at numbers 6472 
How to cook the "uninformed" anode. 6472 
Okay, so this might work.... 6472 
The DHT Milq DSET, the prebuilt draft. 6472 
Looks good, but.... 6471 
2A3 with slightly lover filament voltage? 6471 
Less is more... usually. 6471 
Where to burn gain? how? and where to get beter st... 6470 
Stepping Out 6470 
Said to be good, but 6470 
Gain to lose 6470 
Why nothing is simple with this damn amp! 6470 
Another idea for losing gain 6470 
What's best 6470 
Options, options... 6470 
Actually, it is not so bad. 6470 
Other compromises... 6469 
Cathode vs. fixed with DHT 6468 
Is it glowing yet? 6448 
It is comming.... 6448 
The new MF channel. 6442 
I started to work on the Milq’s DHT Island. 6441 
Innerstage loading vs. OPT loading. 6433 
The intestage loading talk. 6430 
My playback feels like it is broken. 6425 
1 in 50? 6425 
Yes, it was after PP2000 6425 
Die Walküre soldering. 6424 
The post Die Walküre soldering 6423 
Another amp arond YO186 6422 
Gain? 6422 
The Unexpected problem with DHT Milq. 6422 
Simple is good 6421 
Ok, I am moving forward. 6421 
The Milq DSET is up. 6420 
My DH DSET – 2 days later. 6418 
Here is more data to reconcile. 6418 
Hm, that is interesting and unpleasant so far. 6417 
Ok, what do I want? 6417 
Let Go of Some Conceptual "Restrictions"? 6417 
The Milq DH DSET, the further thoughts in progress. 6417 
Crunching Numbers; Shaping Sound 6417 
How about the tweeter? 6416 
Tweeter Efficiency? 6416 
Safe and Sound 6416 
More mystery with tweeter but still on the subject. 6416 
Some clarifications. 6416 
How about that?!!! 6416 
Further considerations: DC-coupling. 6414 
Head Room 6414 
To kill the mandatory 13dB 6413 
DC coupling and killing 13db and driving 6e5p miller and.... 6413 
I do not think that it might be damaging… 6413 
Again with the PS 6413 
AKA J.C. Morrison’s amp but… 6411 
Parallel Universe 6411 
Melquiades HD MF DSET, Draft13. 6409 
Why I let other people build them... 6409 
Ok, it's going to right direction. 6409 
Ok, it looks already very close…. 6408 
The Loftinish-Whitish, well sort of…. 6405 
MF: the pre-final version. 6405 
Loftin-White? 6405 
Did anyone hear the PX4 amplifiers? 6405 
What Could use Improving at This Point? 6405 
The Milq’s MF front-end is done 6401 
Why I Let Other People Build Them, II 6401 
Define really quiet 6400 
Another variable of sound 6400 
Backlash? 6400 
Alternative filament supplies 6400 
I kind of faced a problem with AC 6400 
Going down the DC path 6399 
It is not about the “whole sound” but about “molec... 6399 
Molecular sound 6399 
AC-DC heater supply 6399 
The Tentlabs are $10 worth PS. 6399 
The unexpected resolution of AC vs. DC quandary. 6399 
The devil is less scared than it depicted. 6399 
Hiss or Hum 6399 
AC transformers 6399 
I have seen the Promised Land 6398 
OK, the choke noise is not a problem anymore 6398 
Ok, it is working fine but… 6397 
Divide and Conquer 6397 
The design phase is over. 6396 
The unexpected insanity! 6395 
Loading 6395 
Looking for inspiring ideas for 'universal' loadin... 6395 
A filaments Sherlock Holmes wanted. 6395 
Going the Distance 6395 
Read the f*** manual! 6395 
Agreed. 6395 
I agree 6395 
The filament transformer 6395 
Center-tap and options 6395 
Something like this…. 6395 
Avoiding "Dial-an-Amp" 6395 
The foreplay is going on. 6395 
Split balance 6394 
Further thoughts about my DH filaments 6394 
The Shuguang 2A3 tubes. 6394 
SHuguang 6394 
Going through…. 6393 
The 2.5V noise vs. 4V noise. 6392 
More about Shuguang 2A3C 6392 
Hum vs voltage 6392 
Meow about the tubes… 6392 
To Be a Content Cat 6392 
Completed! 6389 
Tradition 6389 
Absolutely beautiful! 6389 
The 'film' caps in PS 6388 
Science or religion 6388 
Mass Extinction 6388 
Electrolytics, technology and time 6388 
No more questions about PS capacitors. 6388 
Capacitor choices 6388 
Good time. Welcome back. Thanks God. 6387 
The minor day of Quartets. 6387 
Them's the Breaks 6387 
Eventually! 6386 
So Soon? 6386 
DHT MF channel and 6-ch amp: first conclusions 6386 
All Abuzz about Nothing 6385 
The wire for DC-coupling 6385 
The Dirt on DIY Backlash 6385 
DSET vs. the “better tubes”. 6385 
How to test the DH tubes properly? 6384 
Pairing up tubes for SE use 6383 
The DHT live reserve 6382 
Some interestng models 6382 
Eaten alive. 6382 
The tubey déjà vu? 6381 
The new concept of my output transformer. 6377 
The 4V takes a lead. 6373 
Listening the DH and the striped down version of M... 6370 
I kind of slowly learn what I need. 6370 
More HF from a transformer and DHT? 6368 
Since You Don't Need the Gain 6367 
Exiting the design mode? 6367 
Bye-bye the input divider on MF! 6367 
A few steps back and a gaint leap ahead. 6363 
Single-stage vs. DHT amp. 6362 
Setting up the new Playback 6361 
And the winner is… so far 6358 
If you like type 45... 6358 
Type 45... they're not all the same 6358 
Favorite Flavor? 6358 
The 45 times Meow... 6358 
The problem that I see is… 6358 
Running the 45 6358 
The 10Y...and bye bye Newton 6357 
The commentaries about everything. 6357 
Driver tube and biasing 6357 
DHT drivers 6357 
The ideas are worth trying? 6357 
A question about the polishing the things…. 6353 
The Particular Tube, I'm afraid... 6353 
Driving the 45... cathode first 6352 
ST or Globe; old or new... 6352 
Whatever sticks to the wall as an operation point ... 6352 
The attenuating crap in secondary. 6352 
Operating points and cathode current 6352 
The Burgeoning Opportunities! 6352 
Actually it is not so simple. 6352 
Resistors at the front 6351 
A minor alternation of a position 6351 
The era of enlightenment. 6348 
The devil is in the details.... 6348 
Constructing Sound 6348 
A new view on the DHT evaluation. 6347 
The “strange” YO186 6338 
The dead guy’s lessons. 6293 
2S4S and 2A3 6284 
Ho to use the YO186 6277 
YO 186 fundamental flavor 6277 
The YO-YO tube and "fundamentals" channel 6277 
The live without the YO186, again.... 6275 
Not anymore! 6264 
The very good YoYonisation! 6263 
….above and below two very clean channel. 6262 
The DHT and esoteric imaging deformation. 6249 
DHT, YO186, or??? 6249 
I had no idea how ‘different’ it is. 6196 
The Kazitsky Manufacturing and YO104, some history. 6195 
"Absolution and Eternal Refuge." 6192 
Sofia Electric Type 45 Mesh 6182 
The true association of YO186's Sounds. 5944 
All the Best from Burgundy 5944 
Cheesy tubes 5943 
Me and my DHT references… 5834 
Y0-186 in winter. 5737 
Y0-186 sounds like… 5736 
Rethinking the YO186 tube. 5705 
In My Dreams 5705 
Grunt from type 45? A ridicules comment. 5705 
Blame? 5704 
When good is not good enough. 5704 
45s, Drivers, and 45s 5704 
Hm, that was so simple after all! 5703 
How the YO186 was used. 5287 
What is old is new? 5286 
YO186 vs. type 45. 5285 
The YO186 is gone.... :-( 4834 
That sucks. 4834 
YO186 4832 
Hm, what the hell is going on? 4832 
I do not think that anybody but me would like YO186 4832 
A hallucination? 4829 
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