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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 6534 
One-stage Milq++ and the DHT's alleged tone 6533 
DHT Milq? 6533 
The DHT journey. 6533 
DHT tone 6533 
Well, why not? 6532 
Holding the Fort 6532 
My DHT experiment: Preface 6532 
Input tube and DC heaters 6531 
Reimyo Pat 777 6531 
My DHT experiment: Observations 6527 
DHT or 300B? 6527 
300B 6527 
Talking, perception and the grounds for objectively 6527 
The Wine Via the Wine Glass 6526 
Hence the confusion 6526 
My DHT experiment: some conclusions. 6526 
Reality Reconstruction is not a functionality. 6526 
My experience with DHTs 6526 
Pigmented coloration? 6526 
Dht-dht 6526 
Dynamic viscosity? 6526 
The Pallette preamp... 6526 
If one DHT is good, two must be better? 6526 
"soul" of tubes 6526 
There is a difference... 6526 
Vibration injection? 6526 
Homework # 4334 6526 
The 01A-71A-10Y-45 chain 6526 
Old valves have more soul! 6525 
Was it soul or soil? 6525 
It was just a heading 6525 
Adjustable color: TIMBRE LOCK? 6525 
Neutral or neutral/uncoloured? 6525 
..are lacking in power, dynamics and bandwidth. 6525 
Timbre-Lock. Not quite ready for prime time. 6525 
Injection of analog dither? 6525 
Subliminal signal 6525 
The idea of analog randomanization. 6525 
Okay, what Avicena Power Generator 6525 
I hope you will be hearing about it. 6524 
Avicenna = Arabian 6524 
Persian, not Arab 6524 
The “second solution” - a major disappointment 6524 
More words to describe "sux" please 6524 
Revolution 6524 
The non-melodramatic DHT? 6524 
One-stage DHTs 6523 
One other thing 6523 
One stage 6523 
Brewing, thinking and heating 6523 
Physical characteristics of electronic devices 6523 
I see the things differently. 6523 
Don't waste time being "creative" 6523 
The audiophile attitude 6523 
The where and why of design choices 6523 
Blah blah blah 6523 
Laconic Clarity vs. Comfort vs. Nostalgia 6523 
Do I need to be hissing? 6523 
...associated with lack of neutrality and colorati... 6523 
John Broskie's Partial feedback amplifier 6523 
Randomness vs. freedom and the Homework # 4334 6522 
What is randomness? 6522 
Those least three possibilities… 6522 
Randomness and Music's Prerogative 6522 
It works, … sort of. The revolution is canceled. 6522 
Thorsten Loesch’s article about DHT SETs 6520 
A Beautiful Mind 6519 
Some summary and conclusions from the first phase. 6517 
Second phase: revising requirement for my DHT objectives. 6502 
Tubes for your DHT amp 6502 
Abandoning Milq? 6502 
Will see how it goes.... 6502 
Single-stage Milq vs. Sun Audio VT-2A3 6500 
Topology and 2A3? 6500 
6SN7-2A3 amps? 6500 
Type Casting 6500 
Sun Audio SV-2A3 6500 
6sn7-2a3 6500 
Topology vs parts 6500 
For a DHT amp, you are listening to the power supply 6500 
The vintage tubes syndrome. 6500 
Parts Frenzy 6500 
Too many new sounds 6500 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6499 
New tubes 6498 
Milq bias vs. batery bias 6498 
The batteries are a tricky thing. 6498 
Swimming the ocean at night? 6498 
New 2A3 6498 
To kill of do not kill the capacitor. 6497 
The JJ Electronic amp. 6496 
JJ 2A3 and amp 6496 
Czech tubes 6494 
Single plated vs Double plated? 6494 
Mono plate 2A3 tubes 6494 
I suggested once VT52 tube 6493 
The 800R vs. 1800R vs. 5500R 6493 
YO-186 as the output tube. 6490 
Here she is. 6489 
Some talks about the new production tubes 6485 
New 2A3 tubes 6485 
Some thoughts about one-IHT vs. multiple-DHT 6485 
The Sun Audio with 6E5P 6484 
Multistage DHT circuits 6483 
Wrong tube or wrong topology – here is the question. 6482 
Emission Labs 2A3 6482 
Some comment and questions about then 2A3 talks. 6482 
Which Chinese 2A3? 6482 
OK, for a first time I like the San Audio Kit. 6482 
The YO186 Strip Show 6482 
More on the 2A3 comparisons 6481 
It will be interesting…. 6481 
OPT impedence 6481 
More about the Plate Loading 6481 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6476 
2A3 data 6476 
The New 2A3 tubes 6476 
How many stages I need for 110dB sensitivity, smal... 6476 
How many stages and why... and who makes that 45 o... 6475 
Everything about everything. 6475 
Some very good points... and... possibly more logi... 6475 
Options, options, options.... 6475 
I think we agree overall 6475 
An IDHT with more gain? 6474 
You don't ask for much now, eh? 6474 
2A3 tube impressions 6469 
Interesting analogy 6469 
NOS 2A3 tubes versus new tubes 6469 
Hmmm, let me try this one again... 6469 
Sylvania 2A3 identification 6469 
A picture is worth a thousand micromhos? 6469 
I have more interest in the period tubes 6469 
Why NOS tubes? 6468 
The Holly Ignorance 6468 
Tube tasting 6468 
The cathodes’ flatulence? 6468 
Make mine thoriated please 6468 
Any Germans out there? 6468 
6E5P VS 6E6P 6468 
Vibrations? What do you with them? 6468 
Vibration in tubes and sounds 6468 
UX4 vs UX4ruskie 6467 
Ringing the tubes? I do not know how about that. 6467 
Tube sound and vibration 6467 
The thoughts collection about YO186? 6461 
The lights look green for the YO tube 6460 
"Melquiades" with YO-186. Something like... 6460 
My version of RE-604 and PX4 6459 
The YO186 tube sockets. 6459 
B4/B5 British made 6458 
The YO186’s sockets and prices 6458 
DHT 2A3 amplifier rectification 6457 
My attitude toward tube rectification. 6457 
Tu-be or not Tu-be, seems Tu-be the question. 6456 
It looks like DHT DSET is shaping up. 6455 
The Sylvania 2A3 NOS report 6452 
The Citizen Kane syndrome. 6452 
Sylvania 2A3 in a World without Color 6451 
Are NOS and new manufacture comparing oranges to o... 6451 
That all is incorrect in a way…. 6451 
NOS vs new 2A3 tubes 6451 
The identical operation environment? 6451 
Preferred 2A3 operating point 6451 
The sound of the 2A3 however? 6451 
Circuit modification for 2A3 optimization 6450 
How to get max power from 2A3 6450 
2A3 voltages, loads and realized output power 6450 
Optimal operation of 2A3: an experiment 6450 
Tubes, Whole Circuits, Expectations and Sound 6450 
Gain is not power. 6450 
2A3 amplifier modification & Optimization 6450 
Specialized DSET approach 6450 
6C33/2A3 DSET? 6450 
SET usable power and making the most of it 6450 
The 2A3 loading 6450 
DSET solution for EdgarHorn? 6450 
Optimizing the 2A3 6450 
How much to DSET a DSET 6450 
DSET for Titan 6450 
The Best of All Worlds 6450 
Multiamp setup 6449 
Optimizing the (NOS) 2A3... "KM-style"? 6449 
There are many opportunities, it all depends what ... 6449 
Modifying amplifer to optimize NOS 2A3 performance 6449 
Conceptualizing Melquiades DSET is done 6443 
2A3 and 400V supply 6443 
Pudding and the chicken wires 6442 
Another shot at numbers 6442 
How to cook the "uninformed" anode. 6442 
Okay, so this might work.... 6442 
The DHT Milq DSET, the prebuilt draft. 6442 
Looks good, but.... 6441 
2A3 with slightly lover filament voltage? 6441 
Less is more... usually. 6441 
Where to burn gain? how? and where to get beter st... 6440 
Stepping Out 6440 
Said to be good, but 6440 
Gain to lose 6440 
Why nothing is simple with this damn amp! 6440 
Another idea for losing gain 6440 
What's best 6440 
Options, options... 6440 
Actually, it is not so bad. 6440 
Other compromises... 6439 
Cathode vs. fixed with DHT 6438 
Is it glowing yet? 6418 
It is comming.... 6418 
The new MF channel. 6412 
I started to work on the Milq’s DHT Island. 6411 
Innerstage loading vs. OPT loading. 6403 
The intestage loading talk. 6400 
My playback feels like it is broken. 6395 
1 in 50? 6395 
Yes, it was after PP2000 6395 
Die Walküre soldering. 6394 
The post Die Walküre soldering 6393 
Another amp arond YO186 6392 
Gain? 6392 
The Unexpected problem with DHT Milq. 6392 
Simple is good 6391 
Ok, I am moving forward. 6391 
The Milq DSET is up. 6390 
My DH DSET – 2 days later. 6388 
Here is more data to reconcile. 6388 
Hm, that is interesting and unpleasant so far. 6387 
Ok, what do I want? 6387 
Let Go of Some Conceptual "Restrictions"? 6387 
The Milq DH DSET, the further thoughts in progress. 6387 
Crunching Numbers; Shaping Sound 6387 
How about the tweeter? 6386 
Tweeter Efficiency? 6386 
Safe and Sound 6386 
More mystery with tweeter but still on the subject. 6386 
Some clarifications. 6386 
How about that?!!! 6386 
Further considerations: DC-coupling. 6384 
Head Room 6384 
To kill the mandatory 13dB 6383 
DC coupling and killing 13db and driving 6e5p miller and.... 6383 
I do not think that it might be damaging… 6383 
Again with the PS 6383 
AKA J.C. Morrison’s amp but… 6381 
Parallel Universe 6381 
Melquiades HD MF DSET, Draft13. 6379 
Why I let other people build them... 6379 
Ok, it's going to right direction. 6379 
Ok, it looks already very close…. 6378 
The Loftinish-Whitish, well sort of…. 6375 
MF: the pre-final version. 6375 
Loftin-White? 6375 
Did anyone hear the PX4 amplifiers? 6375 
What Could use Improving at This Point? 6375 
The Milq’s MF front-end is done 6371 
Why I Let Other People Build Them, II 6371 
Define really quiet 6370 
Another variable of sound 6370 
Backlash? 6370 
Alternative filament supplies 6370 
I kind of faced a problem with AC 6370 
Going down the DC path 6369 
It is not about the “whole sound” but about “molec... 6369 
Molecular sound 6369 
AC-DC heater supply 6369 
The Tentlabs are $10 worth PS. 6369 
The unexpected resolution of AC vs. DC quandary. 6369 
The devil is less scared than it depicted. 6369 
Hiss or Hum 6369 
AC transformers 6369 
I have seen the Promised Land 6368 
OK, the choke noise is not a problem anymore 6368 
Ok, it is working fine but… 6367 
Divide and Conquer 6367 
The design phase is over. 6366 
The unexpected insanity! 6365 
Loading 6365 
Looking for inspiring ideas for 'universal' loadin... 6365 
A filaments Sherlock Holmes wanted. 6365 
Going the Distance 6365 
Read the f*** manual! 6365 
Agreed. 6365 
I agree 6365 
The filament transformer 6365 
Center-tap and options 6365 
Something like this…. 6365 
Avoiding "Dial-an-Amp" 6365 
The foreplay is going on. 6365 
Split balance 6364 
Further thoughts about my DH filaments 6364 
The Shuguang 2A3 tubes. 6364 
SHuguang 6364 
Going through…. 6363 
The 2.5V noise vs. 4V noise. 6362 
More about Shuguang 2A3C 6362 
Hum vs voltage 6362 
Meow about the tubes… 6362 
To Be a Content Cat 6362 
Completed! 6359 
Tradition 6359 
Absolutely beautiful! 6359 
The 'film' caps in PS 6358 
Science or religion 6358 
Mass Extinction 6358 
Electrolytics, technology and time 6358 
No more questions about PS capacitors. 6358 
Capacitor choices 6358 
Good time. Welcome back. Thanks God. 6357 
The minor day of Quartets. 6357 
Them's the Breaks 6357 
Eventually! 6356 
So Soon? 6356 
DHT MF channel and 6-ch amp: first conclusions 6356 
All Abuzz about Nothing 6355 
The wire for DC-coupling 6355 
The Dirt on DIY Backlash 6355 
DSET vs. the “better tubes”. 6355 
How to test the DH tubes properly? 6354 
Pairing up tubes for SE use 6353 
The DHT live reserve 6352 
Some interestng models 6352 
Eaten alive. 6352 
The tubey déjà vu? 6351 
The new concept of my output transformer. 6347 
The 4V takes a lead. 6343 
Listening the DH and the striped down version of M... 6340 
I kind of slowly learn what I need. 6340 
More HF from a transformer and DHT? 6338 
Since You Don't Need the Gain 6337 
Exiting the design mode? 6337 
Bye-bye the input divider on MF! 6337 
A few steps back and a gaint leap ahead. 6333 
Single-stage vs. DHT amp. 6332 
Setting up the new Playback 6331 
And the winner is… so far 6328 
If you like type 45... 6328 
Type 45... they're not all the same 6328 
Favorite Flavor? 6328 
The 45 times Meow... 6328 
The problem that I see is… 6328 
Running the 45 6328 
The 10Y...and bye bye Newton 6327 
The commentaries about everything. 6327 
Driver tube and biasing 6327 
DHT drivers 6327 
The ideas are worth trying? 6327 
A question about the polishing the things…. 6323 
The Particular Tube, I'm afraid... 6323 
Driving the 45... cathode first 6322 
ST or Globe; old or new... 6322 
Whatever sticks to the wall as an operation point ... 6322 
The attenuating crap in secondary. 6322 
Operating points and cathode current 6322 
The Burgeoning Opportunities! 6322 
Actually it is not so simple. 6322 
Resistors at the front 6321 
A minor alternation of a position 6321 
The era of enlightenment. 6318 
The devil is in the details.... 6318 
Constructing Sound 6318 
A new view on the DHT evaluation. 6317 
The “strange” YO186 6308 
The dead guy’s lessons. 6263 
2S4S and 2A3 6254 
Ho to use the YO186 6247 
YO 186 fundamental flavor 6247 
The YO-YO tube and "fundamentals" channel 6247 
The live without the YO186, again.... 6245 
Not anymore! 6234 
The very good YoYonisation! 6233 
….above and below two very clean channel. 6232 
The DHT and esoteric imaging deformation. 6219 
DHT, YO186, or??? 6219 
I had no idea how ‘different’ it is. 6166 
The Kazitsky Manufacturing and YO104, some history. 6165 
"Absolution and Eternal Refuge." 6162 
Sofia Electric Type 45 Mesh 6152 
The true association of YO186's Sounds. 5914 
All the Best from Burgundy 5914 
Cheesy tubes 5913 
Me and my DHT references… 5804 
Y0-186 in winter. 5707 
Y0-186 sounds like… 5706 
Rethinking the YO186 tube. 5675 
In My Dreams 5675 
Grunt from type 45? A ridicules comment. 5675 
Blame? 5674 
When good is not good enough. 5674 
45s, Drivers, and 45s 5674 
Hm, that was so simple after all! 5673 
How the YO186 was used. 5257 
What is old is new? 5256 
YO186 vs. type 45. 5255 
The YO186 is gone.... :-( 4804 
That sucks. 4804 
YO186 4802 
Hm, what the hell is going on? 4802 
I do not think that anybody but me would like YO186 4802 
A hallucination? 4799 
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