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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 6492 
One-stage Milq++ and the DHT's alleged tone 6491 
DHT Milq? 6491 
The DHT journey. 6491 
DHT tone 6491 
Well, why not? 6490 
Holding the Fort 6490 
My DHT experiment: Preface 6490 
Input tube and DC heaters 6489 
Reimyo Pat 777 6489 
My DHT experiment: Observations 6485 
DHT or 300B? 6485 
300B 6485 
Talking, perception and the grounds for objectively 6485 
The Wine Via the Wine Glass 6484 
Hence the confusion 6484 
My DHT experiment: some conclusions. 6484 
Reality Reconstruction is not a functionality. 6484 
My experience with DHTs 6484 
Pigmented coloration? 6484 
Dht-dht 6484 
Dynamic viscosity? 6484 
The Pallette preamp... 6484 
If one DHT is good, two must be better? 6484 
"soul" of tubes 6484 
There is a difference... 6484 
Vibration injection? 6484 
Homework # 4334 6484 
The 01A-71A-10Y-45 chain 6484 
Old valves have more soul! 6483 
Was it soul or soil? 6483 
It was just a heading 6483 
Adjustable color: TIMBRE LOCK? 6483 
Neutral or neutral/uncoloured? 6483 
..are lacking in power, dynamics and bandwidth. 6483 
Timbre-Lock. Not quite ready for prime time. 6483 
Injection of analog dither? 6483 
Subliminal signal 6483 
The idea of analog randomanization. 6483 
Okay, what Avicena Power Generator 6483 
I hope you will be hearing about it. 6482 
Avicenna = Arabian 6482 
Persian, not Arab 6482 
The “second solution” - a major disappointment 6482 
More words to describe "sux" please 6482 
Revolution 6482 
The non-melodramatic DHT? 6482 
One-stage DHTs 6481 
One other thing 6481 
One stage 6481 
Brewing, thinking and heating 6481 
Physical characteristics of electronic devices 6481 
I see the things differently. 6481 
Don't waste time being "creative" 6481 
The audiophile attitude 6481 
The where and why of design choices 6481 
Blah blah blah 6481 
Laconic Clarity vs. Comfort vs. Nostalgia 6481 
Do I need to be hissing? 6481 
...associated with lack of neutrality and colorati... 6481 
John Broskie's Partial feedback amplifier 6481 
Randomness vs. freedom and the Homework # 4334 6480 
What is randomness? 6480 
Those least three possibilities… 6480 
Randomness and Music's Prerogative 6480 
It works, … sort of. The revolution is canceled. 6480 
Thorsten Loesch’s article about DHT SETs 6478 
A Beautiful Mind 6477 
Some summary and conclusions from the first phase. 6475 
Second phase: revising requirement for my DHT objectives. 6460 
Tubes for your DHT amp 6460 
Abandoning Milq? 6460 
Will see how it goes.... 6460 
Single-stage Milq vs. Sun Audio VT-2A3 6458 
Topology and 2A3? 6458 
6SN7-2A3 amps? 6458 
Type Casting 6458 
Sun Audio SV-2A3 6458 
6sn7-2a3 6458 
Topology vs parts 6458 
For a DHT amp, you are listening to the power supply 6458 
The vintage tubes syndrome. 6458 
Parts Frenzy 6458 
Too many new sounds 6458 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6457 
New tubes 6456 
Milq bias vs. batery bias 6456 
The batteries are a tricky thing. 6456 
Swimming the ocean at night? 6456 
New 2A3 6456 
To kill of do not kill the capacitor. 6455 
The JJ Electronic amp. 6454 
JJ 2A3 and amp 6454 
Czech tubes 6452 
Single plated vs Double plated? 6452 
Mono plate 2A3 tubes 6452 
I suggested once VT52 tube 6451 
The 800R vs. 1800R vs. 5500R 6451 
YO-186 as the output tube. 6448 
Here she is. 6447 
Some talks about the new production tubes 6443 
New 2A3 tubes 6443 
Some thoughts about one-IHT vs. multiple-DHT 6443 
The Sun Audio with 6E5P 6442 
Multistage DHT circuits 6441 
Wrong tube or wrong topology – here is the question. 6440 
Emission Labs 2A3 6440 
Some comment and questions about then 2A3 talks. 6440 
Which Chinese 2A3? 6440 
OK, for a first time I like the San Audio Kit. 6440 
The YO186 Strip Show 6440 
More on the 2A3 comparisons 6439 
It will be interesting…. 6439 
OPT impedence 6439 
More about the Plate Loading 6439 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6434 
2A3 data 6434 
The New 2A3 tubes 6434 
How many stages I need for 110dB sensitivity, smal... 6434 
How many stages and why... and who makes that 45 o... 6433 
Everything about everything. 6433 
Some very good points... and... possibly more logi... 6433 
Options, options, options.... 6433 
I think we agree overall 6433 
An IDHT with more gain? 6432 
You don't ask for much now, eh? 6432 
2A3 tube impressions 6427 
Interesting analogy 6427 
NOS 2A3 tubes versus new tubes 6427 
Hmmm, let me try this one again... 6427 
Sylvania 2A3 identification 6427 
A picture is worth a thousand micromhos? 6427 
I have more interest in the period tubes 6427 
Why NOS tubes? 6426 
The Holly Ignorance 6426 
Tube tasting 6426 
The cathodes’ flatulence? 6426 
Make mine thoriated please 6426 
Any Germans out there? 6426 
6E5P VS 6E6P 6426 
Vibrations? What do you with them? 6426 
Vibration in tubes and sounds 6426 
UX4 vs UX4ruskie 6425 
Ringing the tubes? I do not know how about that. 6425 
Tube sound and vibration 6425 
The thoughts collection about YO186? 6419 
The lights look green for the YO tube 6418 
"Melquiades" with YO-186. Something like... 6418 
My version of RE-604 and PX4 6417 
The YO186 tube sockets. 6417 
B4/B5 British made 6416 
The YO186’s sockets and prices 6416 
DHT 2A3 amplifier rectification 6415 
My attitude toward tube rectification. 6415 
Tu-be or not Tu-be, seems Tu-be the question. 6414 
It looks like DHT DSET is shaping up. 6413 
The Sylvania 2A3 NOS report 6410 
The Citizen Kane syndrome. 6410 
Sylvania 2A3 in a World without Color 6409 
Are NOS and new manufacture comparing oranges to o... 6409 
That all is incorrect in a way…. 6409 
NOS vs new 2A3 tubes 6409 
The identical operation environment? 6409 
Preferred 2A3 operating point 6409 
The sound of the 2A3 however? 6409 
Circuit modification for 2A3 optimization 6408 
How to get max power from 2A3 6408 
2A3 voltages, loads and realized output power 6408 
Optimal operation of 2A3: an experiment 6408 
Tubes, Whole Circuits, Expectations and Sound 6408 
Gain is not power. 6408 
2A3 amplifier modification & Optimization 6408 
Specialized DSET approach 6408 
6C33/2A3 DSET? 6408 
SET usable power and making the most of it 6408 
The 2A3 loading 6408 
DSET solution for EdgarHorn? 6408 
Optimizing the 2A3 6408 
How much to DSET a DSET 6408 
DSET for Titan 6408 
The Best of All Worlds 6408 
Multiamp setup 6407 
Optimizing the (NOS) 2A3... "KM-style"? 6407 
There are many opportunities, it all depends what ... 6407 
Modifying amplifer to optimize NOS 2A3 performance 6407 
Conceptualizing Melquiades DSET is done 6401 
2A3 and 400V supply 6401 
Pudding and the chicken wires 6400 
Another shot at numbers 6400 
How to cook the "uninformed" anode. 6400 
Okay, so this might work.... 6400 
The DHT Milq DSET, the prebuilt draft. 6400 
Looks good, but.... 6399 
2A3 with slightly lover filament voltage? 6399 
Less is more... usually. 6399 
Where to burn gain? how? and where to get beter st... 6398 
Stepping Out 6398 
Said to be good, but 6398 
Gain to lose 6398 
Why nothing is simple with this damn amp! 6398 
Another idea for losing gain 6398 
What's best 6398 
Options, options... 6398 
Actually, it is not so bad. 6398 
Other compromises... 6397 
Cathode vs. fixed with DHT 6396 
Is it glowing yet? 6376 
It is comming.... 6376 
The new MF channel. 6370 
I started to work on the Milq’s DHT Island. 6369 
Innerstage loading vs. OPT loading. 6361 
The intestage loading talk. 6358 
My playback feels like it is broken. 6353 
1 in 50? 6353 
Yes, it was after PP2000 6353 
Die Walküre soldering. 6352 
The post Die Walküre soldering 6351 
Another amp arond YO186 6350 
Gain? 6350 
The Unexpected problem with DHT Milq. 6350 
Simple is good 6349 
Ok, I am moving forward. 6349 
The Milq DSET is up. 6348 
My DH DSET – 2 days later. 6346 
Here is more data to reconcile. 6346 
Hm, that is interesting and unpleasant so far. 6345 
Ok, what do I want? 6345 
Let Go of Some Conceptual "Restrictions"? 6345 
The Milq DH DSET, the further thoughts in progress. 6345 
Crunching Numbers; Shaping Sound 6345 
How about the tweeter? 6344 
Tweeter Efficiency? 6344 
Safe and Sound 6344 
More mystery with tweeter but still on the subject. 6344 
Some clarifications. 6344 
How about that?!!! 6344 
Further considerations: DC-coupling. 6342 
Head Room 6342 
To kill the mandatory 13dB 6341 
DC coupling and killing 13db and driving 6e5p miller and.... 6341 
I do not think that it might be damaging… 6341 
Again with the PS 6341 
AKA J.C. Morrison’s amp but… 6339 
Parallel Universe 6339 
Melquiades HD MF DSET, Draft13. 6337 
Why I let other people build them... 6337 
Ok, it's going to right direction. 6337 
Ok, it looks already very close…. 6336 
The Loftinish-Whitish, well sort of…. 6333 
MF: the pre-final version. 6333 
Loftin-White? 6333 
Did anyone hear the PX4 amplifiers? 6333 
What Could use Improving at This Point? 6333 
The Milq’s MF front-end is done 6329 
Why I Let Other People Build Them, II 6329 
Define really quiet 6328 
Another variable of sound 6328 
Backlash? 6328 
Alternative filament supplies 6328 
I kind of faced a problem with AC 6328 
Going down the DC path 6327 
It is not about the “whole sound” but about “molec... 6327 
Molecular sound 6327 
AC-DC heater supply 6327 
The Tentlabs are $10 worth PS. 6327 
The unexpected resolution of AC vs. DC quandary. 6327 
The devil is less scared than it depicted. 6327 
Hiss or Hum 6327 
AC transformers 6327 
I have seen the Promised Land 6326 
OK, the choke noise is not a problem anymore 6326 
Ok, it is working fine but… 6325 
Divide and Conquer 6325 
The design phase is over. 6324 
The unexpected insanity! 6323 
Loading 6323 
Looking for inspiring ideas for 'universal' loadin... 6323 
A filaments Sherlock Holmes wanted. 6323 
Going the Distance 6323 
Read the f*** manual! 6323 
Agreed. 6323 
I agree 6323 
The filament transformer 6323 
Center-tap and options 6323 
Something like this…. 6323 
Avoiding "Dial-an-Amp" 6323 
The foreplay is going on. 6323 
Split balance 6322 
Further thoughts about my DH filaments 6322 
The Shuguang 2A3 tubes. 6322 
SHuguang 6322 
Going through…. 6321 
The 2.5V noise vs. 4V noise. 6320 
More about Shuguang 2A3C 6320 
Hum vs voltage 6320 
Meow about the tubes… 6320 
To Be a Content Cat 6320 
Completed! 6317 
Tradition 6317 
Absolutely beautiful! 6317 
The 'film' caps in PS 6316 
Science or religion 6316 
Mass Extinction 6316 
Electrolytics, technology and time 6316 
No more questions about PS capacitors. 6316 
Capacitor choices 6316 
Good time. Welcome back. Thanks God. 6315 
The minor day of Quartets. 6315 
Them's the Breaks 6315 
Eventually! 6314 
So Soon? 6314 
DHT MF channel and 6-ch amp: first conclusions 6314 
All Abuzz about Nothing 6313 
The wire for DC-coupling 6313 
The Dirt on DIY Backlash 6313 
DSET vs. the “better tubes”. 6313 
How to test the DH tubes properly? 6312 
Pairing up tubes for SE use 6311 
The DHT live reserve 6310 
Some interestng models 6310 
Eaten alive. 6310 
The tubey déjà vu? 6309 
The new concept of my output transformer. 6305 
The 4V takes a lead. 6301 
Listening the DH and the striped down version of M... 6298 
I kind of slowly learn what I need. 6298 
More HF from a transformer and DHT? 6296 
Since You Don't Need the Gain 6295 
Exiting the design mode? 6295 
Bye-bye the input divider on MF! 6295 
A few steps back and a gaint leap ahead. 6291 
Single-stage vs. DHT amp. 6290 
Setting up the new Playback 6289 
And the winner is… so far 6286 
If you like type 45... 6286 
Type 45... they're not all the same 6286 
Favorite Flavor? 6286 
The 45 times Meow... 6286 
The problem that I see is… 6286 
Running the 45 6286 
The 10Y...and bye bye Newton 6285 
The commentaries about everything. 6285 
Driver tube and biasing 6285 
DHT drivers 6285 
The ideas are worth trying? 6285 
A question about the polishing the things…. 6281 
The Particular Tube, I'm afraid... 6281 
Driving the 45... cathode first 6280 
ST or Globe; old or new... 6280 
Whatever sticks to the wall as an operation point ... 6280 
The attenuating crap in secondary. 6280 
Operating points and cathode current 6280 
The Burgeoning Opportunities! 6280 
Actually it is not so simple. 6280 
Resistors at the front 6279 
A minor alternation of a position 6279 
The era of enlightenment. 6276 
The devil is in the details.... 6276 
Constructing Sound 6276 
A new view on the DHT evaluation. 6275 
The “strange” YO186 6266 
The dead guy’s lessons. 6221 
2S4S and 2A3 6212 
Ho to use the YO186 6205 
YO 186 fundamental flavor 6205 
The YO-YO tube and "fundamentals" channel 6205 
The live without the YO186, again.... 6203 
Not anymore! 6192 
The very good YoYonisation! 6191 
….above and below two very clean channel. 6190 
The DHT and esoteric imaging deformation. 6177 
DHT, YO186, or??? 6177 
I had no idea how ‘different’ it is. 6124 
The Kazitsky Manufacturing and YO104, some history. 6123 
"Absolution and Eternal Refuge." 6120 
Sofia Electric Type 45 Mesh 6110 
The true association of YO186's Sounds. 5872 
All the Best from Burgundy 5872 
Cheesy tubes 5871 
Me and my DHT references… 5762 
Y0-186 in winter. 5665 
Y0-186 sounds like… 5664 
Rethinking the YO186 tube. 5633 
In My Dreams 5633 
Grunt from type 45? A ridicules comment. 5633 
Blame? 5632 
When good is not good enough. 5632 
45s, Drivers, and 45s 5632 
Hm, that was so simple after all! 5631 
How the YO186 was used. 5215 
What is old is new? 5214 
YO186 vs. type 45. 5213 
The YO186 is gone.... :-( 4762 
That sucks. 4762 
YO186 4760 
Hm, what the hell is going on? 4760 
I do not think that anybody but me would like YO186 4760 
A hallucination? 4757 
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