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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 6501 
One-stage Milq++ and the DHT's alleged tone 6500 
DHT Milq? 6500 
The DHT journey. 6500 
DHT tone 6500 
Well, why not? 6499 
Holding the Fort 6499 
My DHT experiment: Preface 6499 
Input tube and DC heaters 6498 
Reimyo Pat 777 6498 
My DHT experiment: Observations 6494 
DHT or 300B? 6494 
300B 6494 
Talking, perception and the grounds for objectively 6494 
The Wine Via the Wine Glass 6493 
Hence the confusion 6493 
My DHT experiment: some conclusions. 6493 
Reality Reconstruction is not a functionality. 6493 
My experience with DHTs 6493 
Pigmented coloration? 6493 
Dht-dht 6493 
Dynamic viscosity? 6493 
The Pallette preamp... 6493 
If one DHT is good, two must be better? 6493 
"soul" of tubes 6493 
There is a difference... 6493 
Vibration injection? 6493 
Homework # 4334 6493 
The 01A-71A-10Y-45 chain 6493 
Old valves have more soul! 6492 
Was it soul or soil? 6492 
It was just a heading 6492 
Adjustable color: TIMBRE LOCK? 6492 
Neutral or neutral/uncoloured? 6492 
..are lacking in power, dynamics and bandwidth. 6492 
Timbre-Lock. Not quite ready for prime time. 6492 
Injection of analog dither? 6492 
Subliminal signal 6492 
The idea of analog randomanization. 6492 
Okay, what Avicena Power Generator 6492 
I hope you will be hearing about it. 6491 
Avicenna = Arabian 6491 
Persian, not Arab 6491 
The “second solution” - a major disappointment 6491 
More words to describe "sux" please 6491 
Revolution 6491 
The non-melodramatic DHT? 6491 
One-stage DHTs 6490 
One other thing 6490 
One stage 6490 
Brewing, thinking and heating 6490 
Physical characteristics of electronic devices 6490 
I see the things differently. 6490 
Don't waste time being "creative" 6490 
The audiophile attitude 6490 
The where and why of design choices 6490 
Blah blah blah 6490 
Laconic Clarity vs. Comfort vs. Nostalgia 6490 
Do I need to be hissing? 6490 
...associated with lack of neutrality and colorati... 6490 
John Broskie's Partial feedback amplifier 6490 
Randomness vs. freedom and the Homework # 4334 6489 
What is randomness? 6489 
Those least three possibilities… 6489 
Randomness and Music's Prerogative 6489 
It works, … sort of. The revolution is canceled. 6489 
Thorsten Loesch’s article about DHT SETs 6487 
A Beautiful Mind 6486 
Some summary and conclusions from the first phase. 6484 
Second phase: revising requirement for my DHT objectives. 6469 
Tubes for your DHT amp 6469 
Abandoning Milq? 6469 
Will see how it goes.... 6469 
Single-stage Milq vs. Sun Audio VT-2A3 6467 
Topology and 2A3? 6467 
6SN7-2A3 amps? 6467 
Type Casting 6467 
Sun Audio SV-2A3 6467 
6sn7-2a3 6467 
Topology vs parts 6467 
For a DHT amp, you are listening to the power supply 6467 
The vintage tubes syndrome. 6467 
Parts Frenzy 6467 
Too many new sounds 6467 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6466 
New tubes 6465 
Milq bias vs. batery bias 6465 
The batteries are a tricky thing. 6465 
Swimming the ocean at night? 6465 
New 2A3 6465 
To kill of do not kill the capacitor. 6464 
The JJ Electronic amp. 6463 
JJ 2A3 and amp 6463 
Czech tubes 6461 
Single plated vs Double plated? 6461 
Mono plate 2A3 tubes 6461 
I suggested once VT52 tube 6460 
The 800R vs. 1800R vs. 5500R 6460 
YO-186 as the output tube. 6457 
Here she is. 6456 
Some talks about the new production tubes 6452 
New 2A3 tubes 6452 
Some thoughts about one-IHT vs. multiple-DHT 6452 
The Sun Audio with 6E5P 6451 
Multistage DHT circuits 6450 
Wrong tube or wrong topology – here is the question. 6449 
Emission Labs 2A3 6449 
Some comment and questions about then 2A3 talks. 6449 
Which Chinese 2A3? 6449 
OK, for a first time I like the San Audio Kit. 6449 
The YO186 Strip Show 6449 
More on the 2A3 comparisons 6448 
It will be interesting…. 6448 
OPT impedence 6448 
More about the Plate Loading 6448 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6443 
2A3 data 6443 
The New 2A3 tubes 6443 
How many stages I need for 110dB sensitivity, smal... 6443 
How many stages and why... and who makes that 45 o... 6442 
Everything about everything. 6442 
Some very good points... and... possibly more logi... 6442 
Options, options, options.... 6442 
I think we agree overall 6442 
An IDHT with more gain? 6441 
You don't ask for much now, eh? 6441 
2A3 tube impressions 6436 
Interesting analogy 6436 
NOS 2A3 tubes versus new tubes 6436 
Hmmm, let me try this one again... 6436 
Sylvania 2A3 identification 6436 
A picture is worth a thousand micromhos? 6436 
I have more interest in the period tubes 6436 
Why NOS tubes? 6435 
The Holly Ignorance 6435 
Tube tasting 6435 
The cathodes’ flatulence? 6435 
Make mine thoriated please 6435 
Any Germans out there? 6435 
6E5P VS 6E6P 6435 
Vibrations? What do you with them? 6435 
Vibration in tubes and sounds 6435 
UX4 vs UX4ruskie 6434 
Ringing the tubes? I do not know how about that. 6434 
Tube sound and vibration 6434 
The thoughts collection about YO186? 6428 
The lights look green for the YO tube 6427 
"Melquiades" with YO-186. Something like... 6427 
My version of RE-604 and PX4 6426 
The YO186 tube sockets. 6426 
B4/B5 British made 6425 
The YO186’s sockets and prices 6425 
DHT 2A3 amplifier rectification 6424 
My attitude toward tube rectification. 6424 
Tu-be or not Tu-be, seems Tu-be the question. 6423 
It looks like DHT DSET is shaping up. 6422 
The Sylvania 2A3 NOS report 6419 
The Citizen Kane syndrome. 6419 
Sylvania 2A3 in a World without Color 6418 
Are NOS and new manufacture comparing oranges to o... 6418 
That all is incorrect in a way…. 6418 
NOS vs new 2A3 tubes 6418 
The identical operation environment? 6418 
Preferred 2A3 operating point 6418 
The sound of the 2A3 however? 6418 
Circuit modification for 2A3 optimization 6417 
How to get max power from 2A3 6417 
2A3 voltages, loads and realized output power 6417 
Optimal operation of 2A3: an experiment 6417 
Tubes, Whole Circuits, Expectations and Sound 6417 
Gain is not power. 6417 
2A3 amplifier modification & Optimization 6417 
Specialized DSET approach 6417 
6C33/2A3 DSET? 6417 
SET usable power and making the most of it 6417 
The 2A3 loading 6417 
DSET solution for EdgarHorn? 6417 
Optimizing the 2A3 6417 
How much to DSET a DSET 6417 
DSET for Titan 6417 
The Best of All Worlds 6417 
Multiamp setup 6416 
Optimizing the (NOS) 2A3... "KM-style"? 6416 
There are many opportunities, it all depends what ... 6416 
Modifying amplifer to optimize NOS 2A3 performance 6416 
Conceptualizing Melquiades DSET is done 6410 
2A3 and 400V supply 6410 
Pudding and the chicken wires 6409 
Another shot at numbers 6409 
How to cook the "uninformed" anode. 6409 
Okay, so this might work.... 6409 
The DHT Milq DSET, the prebuilt draft. 6409 
Looks good, but.... 6408 
2A3 with slightly lover filament voltage? 6408 
Less is more... usually. 6408 
Where to burn gain? how? and where to get beter st... 6407 
Stepping Out 6407 
Said to be good, but 6407 
Gain to lose 6407 
Why nothing is simple with this damn amp! 6407 
Another idea for losing gain 6407 
What's best 6407 
Options, options... 6407 
Actually, it is not so bad. 6407 
Other compromises... 6406 
Cathode vs. fixed with DHT 6405 
Is it glowing yet? 6385 
It is comming.... 6385 
The new MF channel. 6379 
I started to work on the Milq’s DHT Island. 6378 
Innerstage loading vs. OPT loading. 6370 
The intestage loading talk. 6367 
My playback feels like it is broken. 6362 
1 in 50? 6362 
Yes, it was after PP2000 6362 
Die Walküre soldering. 6361 
The post Die Walküre soldering 6360 
Another amp arond YO186 6359 
Gain? 6359 
The Unexpected problem with DHT Milq. 6359 
Simple is good 6358 
Ok, I am moving forward. 6358 
The Milq DSET is up. 6357 
My DH DSET – 2 days later. 6355 
Here is more data to reconcile. 6355 
Hm, that is interesting and unpleasant so far. 6354 
Ok, what do I want? 6354 
Let Go of Some Conceptual "Restrictions"? 6354 
The Milq DH DSET, the further thoughts in progress. 6354 
Crunching Numbers; Shaping Sound 6354 
How about the tweeter? 6353 
Tweeter Efficiency? 6353 
Safe and Sound 6353 
More mystery with tweeter but still on the subject. 6353 
Some clarifications. 6353 
How about that?!!! 6353 
Further considerations: DC-coupling. 6351 
Head Room 6351 
To kill the mandatory 13dB 6350 
DC coupling and killing 13db and driving 6e5p miller and.... 6350 
I do not think that it might be damaging… 6350 
Again with the PS 6350 
AKA J.C. Morrison’s amp but… 6348 
Parallel Universe 6348 
Melquiades HD MF DSET, Draft13. 6346 
Why I let other people build them... 6346 
Ok, it's going to right direction. 6346 
Ok, it looks already very close…. 6345 
The Loftinish-Whitish, well sort of…. 6342 
MF: the pre-final version. 6342 
Loftin-White? 6342 
Did anyone hear the PX4 amplifiers? 6342 
What Could use Improving at This Point? 6342 
The Milq’s MF front-end is done 6338 
Why I Let Other People Build Them, II 6338 
Define really quiet 6337 
Another variable of sound 6337 
Backlash? 6337 
Alternative filament supplies 6337 
I kind of faced a problem with AC 6337 
Going down the DC path 6336 
It is not about the “whole sound” but about “molec... 6336 
Molecular sound 6336 
AC-DC heater supply 6336 
The Tentlabs are $10 worth PS. 6336 
The unexpected resolution of AC vs. DC quandary. 6336 
The devil is less scared than it depicted. 6336 
Hiss or Hum 6336 
AC transformers 6336 
I have seen the Promised Land 6335 
OK, the choke noise is not a problem anymore 6335 
Ok, it is working fine but… 6334 
Divide and Conquer 6334 
The design phase is over. 6333 
The unexpected insanity! 6332 
Loading 6332 
Looking for inspiring ideas for 'universal' loadin... 6332 
A filaments Sherlock Holmes wanted. 6332 
Going the Distance 6332 
Read the f*** manual! 6332 
Agreed. 6332 
I agree 6332 
The filament transformer 6332 
Center-tap and options 6332 
Something like this…. 6332 
Avoiding "Dial-an-Amp" 6332 
The foreplay is going on. 6332 
Split balance 6331 
Further thoughts about my DH filaments 6331 
The Shuguang 2A3 tubes. 6331 
SHuguang 6331 
Going through…. 6330 
The 2.5V noise vs. 4V noise. 6329 
More about Shuguang 2A3C 6329 
Hum vs voltage 6329 
Meow about the tubes… 6329 
To Be a Content Cat 6329 
Completed! 6326 
Tradition 6326 
Absolutely beautiful! 6326 
The 'film' caps in PS 6325 
Science or religion 6325 
Mass Extinction 6325 
Electrolytics, technology and time 6325 
No more questions about PS capacitors. 6325 
Capacitor choices 6325 
Good time. Welcome back. Thanks God. 6324 
The minor day of Quartets. 6324 
Them's the Breaks 6324 
Eventually! 6323 
So Soon? 6323 
DHT MF channel and 6-ch amp: first conclusions 6323 
All Abuzz about Nothing 6322 
The wire for DC-coupling 6322 
The Dirt on DIY Backlash 6322 
DSET vs. the “better tubes”. 6322 
How to test the DH tubes properly? 6321 
Pairing up tubes for SE use 6320 
The DHT live reserve 6319 
Some interestng models 6319 
Eaten alive. 6319 
The tubey déjà vu? 6318 
The new concept of my output transformer. 6314 
The 4V takes a lead. 6310 
Listening the DH and the striped down version of M... 6307 
I kind of slowly learn what I need. 6307 
More HF from a transformer and DHT? 6305 
Since You Don't Need the Gain 6304 
Exiting the design mode? 6304 
Bye-bye the input divider on MF! 6304 
A few steps back and a gaint leap ahead. 6300 
Single-stage vs. DHT amp. 6299 
Setting up the new Playback 6298 
And the winner is… so far 6295 
If you like type 45... 6295 
Type 45... they're not all the same 6295 
Favorite Flavor? 6295 
The 45 times Meow... 6295 
The problem that I see is… 6295 
Running the 45 6295 
The 10Y...and bye bye Newton 6294 
The commentaries about everything. 6294 
Driver tube and biasing 6294 
DHT drivers 6294 
The ideas are worth trying? 6294 
A question about the polishing the things…. 6290 
The Particular Tube, I'm afraid... 6290 
Driving the 45... cathode first 6289 
ST or Globe; old or new... 6289 
Whatever sticks to the wall as an operation point ... 6289 
The attenuating crap in secondary. 6289 
Operating points and cathode current 6289 
The Burgeoning Opportunities! 6289 
Actually it is not so simple. 6289 
Resistors at the front 6288 
A minor alternation of a position 6288 
The era of enlightenment. 6285 
The devil is in the details.... 6285 
Constructing Sound 6285 
A new view on the DHT evaluation. 6284 
The “strange” YO186 6275 
The dead guy’s lessons. 6230 
2S4S and 2A3 6221 
Ho to use the YO186 6214 
YO 186 fundamental flavor 6214 
The YO-YO tube and "fundamentals" channel 6214 
The live without the YO186, again.... 6212 
Not anymore! 6201 
The very good YoYonisation! 6200 
….above and below two very clean channel. 6199 
The DHT and esoteric imaging deformation. 6186 
DHT, YO186, or??? 6186 
I had no idea how ‘different’ it is. 6133 
The Kazitsky Manufacturing and YO104, some history. 6132 
"Absolution and Eternal Refuge." 6129 
Sofia Electric Type 45 Mesh 6119 
The true association of YO186's Sounds. 5881 
All the Best from Burgundy 5881 
Cheesy tubes 5880 
Me and my DHT references… 5771 
Y0-186 in winter. 5674 
Y0-186 sounds like… 5673 
Rethinking the YO186 tube. 5642 
In My Dreams 5642 
Grunt from type 45? A ridicules comment. 5642 
Blame? 5641 
When good is not good enough. 5641 
45s, Drivers, and 45s 5641 
Hm, that was so simple after all! 5640 
How the YO186 was used. 5224 
What is old is new? 5223 
YO186 vs. type 45. 5222 
The YO186 is gone.... :-( 4771 
That sucks. 4771 
YO186 4769 
Hm, what the hell is going on? 4769 
I do not think that anybody but me would like YO186 4769 
A hallucination? 4766 
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