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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 6504 
One-stage Milq++ and the DHT's alleged tone 6503 
DHT Milq? 6503 
The DHT journey. 6503 
DHT tone 6503 
Well, why not? 6502 
Holding the Fort 6502 
My DHT experiment: Preface 6502 
Input tube and DC heaters 6501 
Reimyo Pat 777 6501 
My DHT experiment: Observations 6497 
DHT or 300B? 6497 
300B 6497 
Talking, perception and the grounds for objectively 6497 
The Wine Via the Wine Glass 6496 
Hence the confusion 6496 
My DHT experiment: some conclusions. 6496 
Reality Reconstruction is not a functionality. 6496 
My experience with DHTs 6496 
Pigmented coloration? 6496 
Dht-dht 6496 
Dynamic viscosity? 6496 
The Pallette preamp... 6496 
If one DHT is good, two must be better? 6496 
"soul" of tubes 6496 
There is a difference... 6496 
Vibration injection? 6496 
Homework # 4334 6496 
The 01A-71A-10Y-45 chain 6496 
Old valves have more soul! 6495 
Was it soul or soil? 6495 
It was just a heading 6495 
Adjustable color: TIMBRE LOCK? 6495 
Neutral or neutral/uncoloured? 6495 
..are lacking in power, dynamics and bandwidth. 6495 
Timbre-Lock. Not quite ready for prime time. 6495 
Injection of analog dither? 6495 
Subliminal signal 6495 
The idea of analog randomanization. 6495 
Okay, what Avicena Power Generator 6495 
I hope you will be hearing about it. 6494 
Avicenna = Arabian 6494 
Persian, not Arab 6494 
The “second solution” - a major disappointment 6494 
More words to describe "sux" please 6494 
Revolution 6494 
The non-melodramatic DHT? 6494 
One-stage DHTs 6493 
One other thing 6493 
One stage 6493 
Brewing, thinking and heating 6493 
Physical characteristics of electronic devices 6493 
I see the things differently. 6493 
Don't waste time being "creative" 6493 
The audiophile attitude 6493 
The where and why of design choices 6493 
Blah blah blah 6493 
Laconic Clarity vs. Comfort vs. Nostalgia 6493 
Do I need to be hissing? 6493 
...associated with lack of neutrality and colorati... 6493 
John Broskie's Partial feedback amplifier 6493 
Randomness vs. freedom and the Homework # 4334 6492 
What is randomness? 6492 
Those least three possibilities… 6492 
Randomness and Music's Prerogative 6492 
It works, … sort of. The revolution is canceled. 6492 
Thorsten Loesch’s article about DHT SETs 6490 
A Beautiful Mind 6489 
Some summary and conclusions from the first phase. 6487 
Second phase: revising requirement for my DHT objectives. 6472 
Tubes for your DHT amp 6472 
Abandoning Milq? 6472 
Will see how it goes.... 6472 
Single-stage Milq vs. Sun Audio VT-2A3 6470 
Topology and 2A3? 6470 
6SN7-2A3 amps? 6470 
Type Casting 6470 
Sun Audio SV-2A3 6470 
6sn7-2a3 6470 
Topology vs parts 6470 
For a DHT amp, you are listening to the power supply 6470 
The vintage tubes syndrome. 6470 
Parts Frenzy 6470 
Too many new sounds 6470 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6469 
New tubes 6468 
Milq bias vs. batery bias 6468 
The batteries are a tricky thing. 6468 
Swimming the ocean at night? 6468 
New 2A3 6468 
To kill of do not kill the capacitor. 6467 
The JJ Electronic amp. 6466 
JJ 2A3 and amp 6466 
Czech tubes 6464 
Single plated vs Double plated? 6464 
Mono plate 2A3 tubes 6464 
I suggested once VT52 tube 6463 
The 800R vs. 1800R vs. 5500R 6463 
YO-186 as the output tube. 6460 
Here she is. 6459 
Some talks about the new production tubes 6455 
New 2A3 tubes 6455 
Some thoughts about one-IHT vs. multiple-DHT 6455 
The Sun Audio with 6E5P 6454 
Multistage DHT circuits 6453 
Wrong tube or wrong topology – here is the question. 6452 
Emission Labs 2A3 6452 
Some comment and questions about then 2A3 talks. 6452 
Which Chinese 2A3? 6452 
OK, for a first time I like the San Audio Kit. 6452 
The YO186 Strip Show 6452 
More on the 2A3 comparisons 6451 
It will be interesting…. 6451 
OPT impedence 6451 
More about the Plate Loading 6451 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6446 
2A3 data 6446 
The New 2A3 tubes 6446 
How many stages I need for 110dB sensitivity, smal... 6446 
How many stages and why... and who makes that 45 o... 6445 
Everything about everything. 6445 
Some very good points... and... possibly more logi... 6445 
Options, options, options.... 6445 
I think we agree overall 6445 
An IDHT with more gain? 6444 
You don't ask for much now, eh? 6444 
2A3 tube impressions 6439 
Interesting analogy 6439 
NOS 2A3 tubes versus new tubes 6439 
Hmmm, let me try this one again... 6439 
Sylvania 2A3 identification 6439 
A picture is worth a thousand micromhos? 6439 
I have more interest in the period tubes 6439 
Why NOS tubes? 6438 
The Holly Ignorance 6438 
Tube tasting 6438 
The cathodes’ flatulence? 6438 
Make mine thoriated please 6438 
Any Germans out there? 6438 
6E5P VS 6E6P 6438 
Vibrations? What do you with them? 6438 
Vibration in tubes and sounds 6438 
UX4 vs UX4ruskie 6437 
Ringing the tubes? I do not know how about that. 6437 
Tube sound and vibration 6437 
The thoughts collection about YO186? 6431 
The lights look green for the YO tube 6430 
"Melquiades" with YO-186. Something like... 6430 
My version of RE-604 and PX4 6429 
The YO186 tube sockets. 6429 
B4/B5 British made 6428 
The YO186’s sockets and prices 6428 
DHT 2A3 amplifier rectification 6427 
My attitude toward tube rectification. 6427 
Tu-be or not Tu-be, seems Tu-be the question. 6426 
It looks like DHT DSET is shaping up. 6425 
The Sylvania 2A3 NOS report 6422 
The Citizen Kane syndrome. 6422 
Sylvania 2A3 in a World without Color 6421 
Are NOS and new manufacture comparing oranges to o... 6421 
That all is incorrect in a way…. 6421 
NOS vs new 2A3 tubes 6421 
The identical operation environment? 6421 
Preferred 2A3 operating point 6421 
The sound of the 2A3 however? 6421 
Circuit modification for 2A3 optimization 6420 
How to get max power from 2A3 6420 
2A3 voltages, loads and realized output power 6420 
Optimal operation of 2A3: an experiment 6420 
Tubes, Whole Circuits, Expectations and Sound 6420 
Gain is not power. 6420 
2A3 amplifier modification & Optimization 6420 
Specialized DSET approach 6420 
6C33/2A3 DSET? 6420 
SET usable power and making the most of it 6420 
The 2A3 loading 6420 
DSET solution for EdgarHorn? 6420 
Optimizing the 2A3 6420 
How much to DSET a DSET 6420 
DSET for Titan 6420 
The Best of All Worlds 6420 
Multiamp setup 6419 
Optimizing the (NOS) 2A3... "KM-style"? 6419 
There are many opportunities, it all depends what ... 6419 
Modifying amplifer to optimize NOS 2A3 performance 6419 
Conceptualizing Melquiades DSET is done 6413 
2A3 and 400V supply 6413 
Pudding and the chicken wires 6412 
Another shot at numbers 6412 
How to cook the "uninformed" anode. 6412 
Okay, so this might work.... 6412 
The DHT Milq DSET, the prebuilt draft. 6412 
Looks good, but.... 6411 
2A3 with slightly lover filament voltage? 6411 
Less is more... usually. 6411 
Where to burn gain? how? and where to get beter st... 6410 
Stepping Out 6410 
Said to be good, but 6410 
Gain to lose 6410 
Why nothing is simple with this damn amp! 6410 
Another idea for losing gain 6410 
What's best 6410 
Options, options... 6410 
Actually, it is not so bad. 6410 
Other compromises... 6409 
Cathode vs. fixed with DHT 6408 
Is it glowing yet? 6388 
It is comming.... 6388 
The new MF channel. 6382 
I started to work on the Milq’s DHT Island. 6381 
Innerstage loading vs. OPT loading. 6373 
The intestage loading talk. 6370 
My playback feels like it is broken. 6365 
1 in 50? 6365 
Yes, it was after PP2000 6365 
Die Walküre soldering. 6364 
The post Die Walküre soldering 6363 
Another amp arond YO186 6362 
Gain? 6362 
The Unexpected problem with DHT Milq. 6362 
Simple is good 6361 
Ok, I am moving forward. 6361 
The Milq DSET is up. 6360 
My DH DSET – 2 days later. 6358 
Here is more data to reconcile. 6358 
Hm, that is interesting and unpleasant so far. 6357 
Ok, what do I want? 6357 
Let Go of Some Conceptual "Restrictions"? 6357 
The Milq DH DSET, the further thoughts in progress. 6357 
Crunching Numbers; Shaping Sound 6357 
How about the tweeter? 6356 
Tweeter Efficiency? 6356 
Safe and Sound 6356 
More mystery with tweeter but still on the subject. 6356 
Some clarifications. 6356 
How about that?!!! 6356 
Further considerations: DC-coupling. 6354 
Head Room 6354 
To kill the mandatory 13dB 6353 
DC coupling and killing 13db and driving 6e5p miller and.... 6353 
I do not think that it might be damaging… 6353 
Again with the PS 6353 
AKA J.C. Morrison’s amp but… 6351 
Parallel Universe 6351 
Melquiades HD MF DSET, Draft13. 6349 
Why I let other people build them... 6349 
Ok, it's going to right direction. 6349 
Ok, it looks already very close…. 6348 
The Loftinish-Whitish, well sort of…. 6345 
MF: the pre-final version. 6345 
Loftin-White? 6345 
Did anyone hear the PX4 amplifiers? 6345 
What Could use Improving at This Point? 6345 
The Milq’s MF front-end is done 6341 
Why I Let Other People Build Them, II 6341 
Define really quiet 6340 
Another variable of sound 6340 
Backlash? 6340 
Alternative filament supplies 6340 
I kind of faced a problem with AC 6340 
Going down the DC path 6339 
It is not about the “whole sound” but about “molec... 6339 
Molecular sound 6339 
AC-DC heater supply 6339 
The Tentlabs are $10 worth PS. 6339 
The unexpected resolution of AC vs. DC quandary. 6339 
The devil is less scared than it depicted. 6339 
Hiss or Hum 6339 
AC transformers 6339 
I have seen the Promised Land 6338 
OK, the choke noise is not a problem anymore 6338 
Ok, it is working fine but… 6337 
Divide and Conquer 6337 
The design phase is over. 6336 
The unexpected insanity! 6335 
Loading 6335 
Looking for inspiring ideas for 'universal' loadin... 6335 
A filaments Sherlock Holmes wanted. 6335 
Going the Distance 6335 
Read the f*** manual! 6335 
Agreed. 6335 
I agree 6335 
The filament transformer 6335 
Center-tap and options 6335 
Something like this…. 6335 
Avoiding "Dial-an-Amp" 6335 
The foreplay is going on. 6335 
Split balance 6334 
Further thoughts about my DH filaments 6334 
The Shuguang 2A3 tubes. 6334 
SHuguang 6334 
Going through…. 6333 
The 2.5V noise vs. 4V noise. 6332 
More about Shuguang 2A3C 6332 
Hum vs voltage 6332 
Meow about the tubes… 6332 
To Be a Content Cat 6332 
Completed! 6329 
Tradition 6329 
Absolutely beautiful! 6329 
The 'film' caps in PS 6328 
Science or religion 6328 
Mass Extinction 6328 
Electrolytics, technology and time 6328 
No more questions about PS capacitors. 6328 
Capacitor choices 6328 
Good time. Welcome back. Thanks God. 6327 
The minor day of Quartets. 6327 
Them's the Breaks 6327 
Eventually! 6326 
So Soon? 6326 
DHT MF channel and 6-ch amp: first conclusions 6326 
All Abuzz about Nothing 6325 
The wire for DC-coupling 6325 
The Dirt on DIY Backlash 6325 
DSET vs. the “better tubes”. 6325 
How to test the DH tubes properly? 6324 
Pairing up tubes for SE use 6323 
The DHT live reserve 6322 
Some interestng models 6322 
Eaten alive. 6322 
The tubey déjà vu? 6321 
The new concept of my output transformer. 6317 
The 4V takes a lead. 6313 
Listening the DH and the striped down version of M... 6310 
I kind of slowly learn what I need. 6310 
More HF from a transformer and DHT? 6308 
Since You Don't Need the Gain 6307 
Exiting the design mode? 6307 
Bye-bye the input divider on MF! 6307 
A few steps back and a gaint leap ahead. 6303 
Single-stage vs. DHT amp. 6302 
Setting up the new Playback 6301 
And the winner is… so far 6298 
If you like type 45... 6298 
Type 45... they're not all the same 6298 
Favorite Flavor? 6298 
The 45 times Meow... 6298 
The problem that I see is… 6298 
Running the 45 6298 
The 10Y...and bye bye Newton 6297 
The commentaries about everything. 6297 
Driver tube and biasing 6297 
DHT drivers 6297 
The ideas are worth trying? 6297 
A question about the polishing the things…. 6293 
The Particular Tube, I'm afraid... 6293 
Driving the 45... cathode first 6292 
ST or Globe; old or new... 6292 
Whatever sticks to the wall as an operation point ... 6292 
The attenuating crap in secondary. 6292 
Operating points and cathode current 6292 
The Burgeoning Opportunities! 6292 
Actually it is not so simple. 6292 
Resistors at the front 6291 
A minor alternation of a position 6291 
The era of enlightenment. 6288 
The devil is in the details.... 6288 
Constructing Sound 6288 
A new view on the DHT evaluation. 6287 
The “strange” YO186 6278 
The dead guy’s lessons. 6233 
2S4S and 2A3 6224 
Ho to use the YO186 6217 
YO 186 fundamental flavor 6217 
The YO-YO tube and "fundamentals" channel 6217 
The live without the YO186, again.... 6215 
Not anymore! 6204 
The very good YoYonisation! 6203 
….above and below two very clean channel. 6202 
The DHT and esoteric imaging deformation. 6189 
DHT, YO186, or??? 6189 
I had no idea how ‘different’ it is. 6136 
The Kazitsky Manufacturing and YO104, some history. 6135 
"Absolution and Eternal Refuge." 6132 
Sofia Electric Type 45 Mesh 6122 
The true association of YO186's Sounds. 5884 
All the Best from Burgundy 5884 
Cheesy tubes 5883 
Me and my DHT references… 5774 
Y0-186 in winter. 5677 
Y0-186 sounds like… 5676 
Rethinking the YO186 tube. 5645 
In My Dreams 5645 
Grunt from type 45? A ridicules comment. 5645 
Blame? 5644 
When good is not good enough. 5644 
45s, Drivers, and 45s 5644 
Hm, that was so simple after all! 5643 
How the YO186 was used. 5227 
What is old is new? 5226 
YO186 vs. type 45. 5225 
The YO186 is gone.... :-( 4774 
That sucks. 4774 
YO186 4772 
Hm, what the hell is going on? 4772 
I do not think that anybody but me would like YO186 4772 
A hallucination? 4769 
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