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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 6565 
One-stage Milq++ and the DHT's alleged tone 6564 
DHT Milq? 6564 
The DHT journey. 6564 
DHT tone 6564 
Well, why not? 6563 
Holding the Fort 6563 
My DHT experiment: Preface 6563 
Input tube and DC heaters 6562 
Reimyo Pat 777 6562 
My DHT experiment: Observations 6558 
DHT or 300B? 6558 
300B 6558 
Talking, perception and the grounds for objectively 6558 
The Wine Via the Wine Glass 6557 
Hence the confusion 6557 
My DHT experiment: some conclusions. 6557 
Reality Reconstruction is not a functionality. 6557 
My experience with DHTs 6557 
Pigmented coloration? 6557 
Dht-dht 6557 
Dynamic viscosity? 6557 
The Pallette preamp... 6557 
If one DHT is good, two must be better? 6557 
"soul" of tubes 6557 
There is a difference... 6557 
Vibration injection? 6557 
Homework # 4334 6557 
The 01A-71A-10Y-45 chain 6557 
Old valves have more soul! 6556 
Was it soul or soil? 6556 
It was just a heading 6556 
Adjustable color: TIMBRE LOCK? 6556 
Neutral or neutral/uncoloured? 6556 
..are lacking in power, dynamics and bandwidth. 6556 
Timbre-Lock. Not quite ready for prime time. 6556 
Injection of analog dither? 6556 
Subliminal signal 6556 
The idea of analog randomanization. 6556 
Okay, what Avicena Power Generator 6556 
I hope you will be hearing about it. 6555 
Avicenna = Arabian 6555 
Persian, not Arab 6555 
The “second solution” - a major disappointment 6555 
More words to describe "sux" please 6555 
Revolution 6555 
The non-melodramatic DHT? 6555 
One-stage DHTs 6554 
One other thing 6554 
One stage 6554 
Brewing, thinking and heating 6554 
Physical characteristics of electronic devices 6554 
I see the things differently. 6554 
Don't waste time being "creative" 6554 
The audiophile attitude 6554 
The where and why of design choices 6554 
Blah blah blah 6554 
Laconic Clarity vs. Comfort vs. Nostalgia 6554 
Do I need to be hissing? 6554 
...associated with lack of neutrality and colorati... 6554 
John Broskie's Partial feedback amplifier 6554 
Randomness vs. freedom and the Homework # 4334 6553 
What is randomness? 6553 
Those least three possibilities… 6553 
Randomness and Music's Prerogative 6553 
It works, … sort of. The revolution is canceled. 6553 
Thorsten Loesch’s article about DHT SETs 6551 
A Beautiful Mind 6550 
Some summary and conclusions from the first phase. 6548 
Second phase: revising requirement for my DHT objectives. 6533 
Tubes for your DHT amp 6533 
Abandoning Milq? 6533 
Will see how it goes.... 6533 
Single-stage Milq vs. Sun Audio VT-2A3 6531 
Topology and 2A3? 6531 
6SN7-2A3 amps? 6531 
Type Casting 6531 
Sun Audio SV-2A3 6531 
6sn7-2a3 6531 
Topology vs parts 6531 
For a DHT amp, you are listening to the power supply 6531 
The vintage tubes syndrome. 6531 
Parts Frenzy 6531 
Too many new sounds 6531 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6530 
New tubes 6529 
Milq bias vs. batery bias 6529 
The batteries are a tricky thing. 6529 
Swimming the ocean at night? 6529 
New 2A3 6529 
To kill of do not kill the capacitor. 6528 
The JJ Electronic amp. 6527 
JJ 2A3 and amp 6527 
Czech tubes 6525 
Single plated vs Double plated? 6525 
Mono plate 2A3 tubes 6525 
I suggested once VT52 tube 6524 
The 800R vs. 1800R vs. 5500R 6524 
YO-186 as the output tube. 6521 
Here she is. 6520 
Some talks about the new production tubes 6516 
New 2A3 tubes 6516 
Some thoughts about one-IHT vs. multiple-DHT 6516 
The Sun Audio with 6E5P 6515 
Multistage DHT circuits 6514 
Wrong tube or wrong topology – here is the question. 6513 
Emission Labs 2A3 6513 
Some comment and questions about then 2A3 talks. 6513 
Which Chinese 2A3? 6513 
OK, for a first time I like the San Audio Kit. 6513 
The YO186 Strip Show 6513 
More on the 2A3 comparisons 6512 
It will be interesting…. 6512 
OPT impedence 6512 
More about the Plate Loading 6512 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6507 
2A3 data 6507 
The New 2A3 tubes 6507 
How many stages I need for 110dB sensitivity, smal... 6507 
How many stages and why... and who makes that 45 o... 6506 
Everything about everything. 6506 
Some very good points... and... possibly more logi... 6506 
Options, options, options.... 6506 
I think we agree overall 6506 
An IDHT with more gain? 6505 
You don't ask for much now, eh? 6505 
2A3 tube impressions 6500 
Interesting analogy 6500 
NOS 2A3 tubes versus new tubes 6500 
Hmmm, let me try this one again... 6500 
Sylvania 2A3 identification 6500 
A picture is worth a thousand micromhos? 6500 
I have more interest in the period tubes 6500 
Why NOS tubes? 6499 
The Holly Ignorance 6499 
Tube tasting 6499 
The cathodes’ flatulence? 6499 
Make mine thoriated please 6499 
Any Germans out there? 6499 
6E5P VS 6E6P 6499 
Vibrations? What do you with them? 6499 
Vibration in tubes and sounds 6499 
UX4 vs UX4ruskie 6498 
Ringing the tubes? I do not know how about that. 6498 
Tube sound and vibration 6498 
The thoughts collection about YO186? 6492 
The lights look green for the YO tube 6491 
"Melquiades" with YO-186. Something like... 6491 
My version of RE-604 and PX4 6490 
The YO186 tube sockets. 6490 
B4/B5 British made 6489 
The YO186’s sockets and prices 6489 
DHT 2A3 amplifier rectification 6488 
My attitude toward tube rectification. 6488 
Tu-be or not Tu-be, seems Tu-be the question. 6487 
It looks like DHT DSET is shaping up. 6486 
The Sylvania 2A3 NOS report 6483 
The Citizen Kane syndrome. 6483 
Sylvania 2A3 in a World without Color 6482 
Are NOS and new manufacture comparing oranges to o... 6482 
That all is incorrect in a way…. 6482 
NOS vs new 2A3 tubes 6482 
The identical operation environment? 6482 
Preferred 2A3 operating point 6482 
The sound of the 2A3 however? 6482 
Circuit modification for 2A3 optimization 6481 
How to get max power from 2A3 6481 
2A3 voltages, loads and realized output power 6481 
Optimal operation of 2A3: an experiment 6481 
Tubes, Whole Circuits, Expectations and Sound 6481 
Gain is not power. 6481 
2A3 amplifier modification & Optimization 6481 
Specialized DSET approach 6481 
6C33/2A3 DSET? 6481 
SET usable power and making the most of it 6481 
The 2A3 loading 6481 
DSET solution for EdgarHorn? 6481 
Optimizing the 2A3 6481 
How much to DSET a DSET 6481 
DSET for Titan 6481 
The Best of All Worlds 6481 
Multiamp setup 6480 
Optimizing the (NOS) 2A3... "KM-style"? 6480 
There are many opportunities, it all depends what ... 6480 
Modifying amplifer to optimize NOS 2A3 performance 6480 
Conceptualizing Melquiades DSET is done 6474 
2A3 and 400V supply 6474 
Pudding and the chicken wires 6473 
Another shot at numbers 6473 
How to cook the "uninformed" anode. 6473 
Okay, so this might work.... 6473 
The DHT Milq DSET, the prebuilt draft. 6473 
Looks good, but.... 6472 
2A3 with slightly lover filament voltage? 6472 
Less is more... usually. 6472 
Where to burn gain? how? and where to get beter st... 6471 
Stepping Out 6471 
Said to be good, but 6471 
Gain to lose 6471 
Why nothing is simple with this damn amp! 6471 
Another idea for losing gain 6471 
What's best 6471 
Options, options... 6471 
Actually, it is not so bad. 6471 
Other compromises... 6470 
Cathode vs. fixed with DHT 6469 
Is it glowing yet? 6449 
It is comming.... 6449 
The new MF channel. 6443 
I started to work on the Milq’s DHT Island. 6442 
Innerstage loading vs. OPT loading. 6434 
The intestage loading talk. 6431 
My playback feels like it is broken. 6426 
1 in 50? 6426 
Yes, it was after PP2000 6426 
Die Walküre soldering. 6425 
The post Die Walküre soldering 6424 
Another amp arond YO186 6423 
Gain? 6423 
The Unexpected problem with DHT Milq. 6423 
Simple is good 6422 
Ok, I am moving forward. 6422 
The Milq DSET is up. 6421 
My DH DSET – 2 days later. 6419 
Here is more data to reconcile. 6419 
Hm, that is interesting and unpleasant so far. 6418 
Ok, what do I want? 6418 
Let Go of Some Conceptual "Restrictions"? 6418 
The Milq DH DSET, the further thoughts in progress. 6418 
Crunching Numbers; Shaping Sound 6418 
How about the tweeter? 6417 
Tweeter Efficiency? 6417 
Safe and Sound 6417 
More mystery with tweeter but still on the subject. 6417 
Some clarifications. 6417 
How about that?!!! 6417 
Further considerations: DC-coupling. 6415 
Head Room 6415 
To kill the mandatory 13dB 6414 
DC coupling and killing 13db and driving 6e5p miller and.... 6414 
I do not think that it might be damaging… 6414 
Again with the PS 6414 
AKA J.C. Morrison’s amp but… 6412 
Parallel Universe 6412 
Melquiades HD MF DSET, Draft13. 6410 
Why I let other people build them... 6410 
Ok, it's going to right direction. 6410 
Ok, it looks already very close…. 6409 
The Loftinish-Whitish, well sort of…. 6406 
MF: the pre-final version. 6406 
Loftin-White? 6406 
Did anyone hear the PX4 amplifiers? 6406 
What Could use Improving at This Point? 6406 
The Milq’s MF front-end is done 6402 
Why I Let Other People Build Them, II 6402 
Define really quiet 6401 
Another variable of sound 6401 
Backlash? 6401 
Alternative filament supplies 6401 
I kind of faced a problem with AC 6401 
Going down the DC path 6400 
It is not about the “whole sound” but about “molec... 6400 
Molecular sound 6400 
AC-DC heater supply 6400 
The Tentlabs are $10 worth PS. 6400 
The unexpected resolution of AC vs. DC quandary. 6400 
The devil is less scared than it depicted. 6400 
Hiss or Hum 6400 
AC transformers 6400 
I have seen the Promised Land 6399 
OK, the choke noise is not a problem anymore 6399 
Ok, it is working fine but… 6398 
Divide and Conquer 6398 
The design phase is over. 6397 
The unexpected insanity! 6396 
Loading 6396 
Looking for inspiring ideas for 'universal' loadin... 6396 
A filaments Sherlock Holmes wanted. 6396 
Going the Distance 6396 
Read the f*** manual! 6396 
Agreed. 6396 
I agree 6396 
The filament transformer 6396 
Center-tap and options 6396 
Something like this…. 6396 
Avoiding "Dial-an-Amp" 6396 
The foreplay is going on. 6396 
Split balance 6395 
Further thoughts about my DH filaments 6395 
The Shuguang 2A3 tubes. 6395 
SHuguang 6395 
Going through…. 6394 
The 2.5V noise vs. 4V noise. 6393 
More about Shuguang 2A3C 6393 
Hum vs voltage 6393 
Meow about the tubes… 6393 
To Be a Content Cat 6393 
Completed! 6390 
Tradition 6390 
Absolutely beautiful! 6390 
The 'film' caps in PS 6389 
Science or religion 6389 
Mass Extinction 6389 
Electrolytics, technology and time 6389 
No more questions about PS capacitors. 6389 
Capacitor choices 6389 
Good time. Welcome back. Thanks God. 6388 
The minor day of Quartets. 6388 
Them's the Breaks 6388 
Eventually! 6387 
So Soon? 6387 
DHT MF channel and 6-ch amp: first conclusions 6387 
All Abuzz about Nothing 6386 
The wire for DC-coupling 6386 
The Dirt on DIY Backlash 6386 
DSET vs. the “better tubes”. 6386 
How to test the DH tubes properly? 6385 
Pairing up tubes for SE use 6384 
The DHT live reserve 6383 
Some interestng models 6383 
Eaten alive. 6383 
The tubey déjà vu? 6382 
The new concept of my output transformer. 6378 
The 4V takes a lead. 6374 
Listening the DH and the striped down version of M... 6371 
I kind of slowly learn what I need. 6371 
More HF from a transformer and DHT? 6369 
Since You Don't Need the Gain 6368 
Exiting the design mode? 6368 
Bye-bye the input divider on MF! 6368 
A few steps back and a gaint leap ahead. 6364 
Single-stage vs. DHT amp. 6363 
Setting up the new Playback 6362 
And the winner is… so far 6359 
If you like type 45... 6359 
Type 45... they're not all the same 6359 
Favorite Flavor? 6359 
The 45 times Meow... 6359 
The problem that I see is… 6359 
Running the 45 6359 
The 10Y...and bye bye Newton 6358 
The commentaries about everything. 6358 
Driver tube and biasing 6358 
DHT drivers 6358 
The ideas are worth trying? 6358 
A question about the polishing the things…. 6354 
The Particular Tube, I'm afraid... 6354 
Driving the 45... cathode first 6353 
ST or Globe; old or new... 6353 
Whatever sticks to the wall as an operation point ... 6353 
The attenuating crap in secondary. 6353 
Operating points and cathode current 6353 
The Burgeoning Opportunities! 6353 
Actually it is not so simple. 6353 
Resistors at the front 6352 
A minor alternation of a position 6352 
The era of enlightenment. 6349 
The devil is in the details.... 6349 
Constructing Sound 6349 
A new view on the DHT evaluation. 6348 
The “strange” YO186 6339 
The dead guy’s lessons. 6294 
2S4S and 2A3 6285 
Ho to use the YO186 6278 
YO 186 fundamental flavor 6278 
The YO-YO tube and "fundamentals" channel 6278 
The live without the YO186, again.... 6276 
Not anymore! 6265 
The very good YoYonisation! 6264 
….above and below two very clean channel. 6263 
The DHT and esoteric imaging deformation. 6250 
DHT, YO186, or??? 6250 
I had no idea how ‘different’ it is. 6197 
The Kazitsky Manufacturing and YO104, some history. 6196 
"Absolution and Eternal Refuge." 6193 
Sofia Electric Type 45 Mesh 6183 
The true association of YO186's Sounds. 5945 
All the Best from Burgundy 5945 
Cheesy tubes 5944 
Me and my DHT references… 5835 
Y0-186 in winter. 5738 
Y0-186 sounds like… 5737 
Rethinking the YO186 tube. 5706 
In My Dreams 5706 
Grunt from type 45? A ridicules comment. 5706 
Blame? 5705 
When good is not good enough. 5705 
45s, Drivers, and 45s 5705 
Hm, that was so simple after all! 5704 
How the YO186 was used. 5288 
What is old is new? 5287 
YO186 vs. type 45. 5286 
The YO186 is gone.... :-( 4835 
That sucks. 4835 
YO186 4833 
Hm, what the hell is going on? 4833 
I do not think that anybody but me would like YO186 4833 
A hallucination? 4830 
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