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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 6497 
One-stage Milq++ and the DHT's alleged tone 6496 
DHT Milq? 6496 
The DHT journey. 6496 
DHT tone 6496 
Well, why not? 6495 
Holding the Fort 6495 
My DHT experiment: Preface 6495 
Input tube and DC heaters 6494 
Reimyo Pat 777 6494 
My DHT experiment: Observations 6490 
DHT or 300B? 6490 
300B 6490 
Talking, perception and the grounds for objectively 6490 
The Wine Via the Wine Glass 6489 
Hence the confusion 6489 
My DHT experiment: some conclusions. 6489 
Reality Reconstruction is not a functionality. 6489 
My experience with DHTs 6489 
Pigmented coloration? 6489 
Dht-dht 6489 
Dynamic viscosity? 6489 
The Pallette preamp... 6489 
If one DHT is good, two must be better? 6489 
"soul" of tubes 6489 
There is a difference... 6489 
Vibration injection? 6489 
Homework # 4334 6489 
The 01A-71A-10Y-45 chain 6489 
Old valves have more soul! 6488 
Was it soul or soil? 6488 
It was just a heading 6488 
Adjustable color: TIMBRE LOCK? 6488 
Neutral or neutral/uncoloured? 6488 
..are lacking in power, dynamics and bandwidth. 6488 
Timbre-Lock. Not quite ready for prime time. 6488 
Injection of analog dither? 6488 
Subliminal signal 6488 
The idea of analog randomanization. 6488 
Okay, what Avicena Power Generator 6488 
I hope you will be hearing about it. 6487 
Avicenna = Arabian 6487 
Persian, not Arab 6487 
The “second solution” - a major disappointment 6487 
More words to describe "sux" please 6487 
Revolution 6487 
The non-melodramatic DHT? 6487 
One-stage DHTs 6486 
One other thing 6486 
One stage 6486 
Brewing, thinking and heating 6486 
Physical characteristics of electronic devices 6486 
I see the things differently. 6486 
Don't waste time being "creative" 6486 
The audiophile attitude 6486 
The where and why of design choices 6486 
Blah blah blah 6486 
Laconic Clarity vs. Comfort vs. Nostalgia 6486 
Do I need to be hissing? 6486 
...associated with lack of neutrality and colorati... 6486 
John Broskie's Partial feedback amplifier 6486 
Randomness vs. freedom and the Homework # 4334 6485 
What is randomness? 6485 
Those least three possibilities… 6485 
Randomness and Music's Prerogative 6485 
It works, … sort of. The revolution is canceled. 6485 
Thorsten Loesch’s article about DHT SETs 6483 
A Beautiful Mind 6482 
Some summary and conclusions from the first phase. 6480 
Second phase: revising requirement for my DHT objectives. 6465 
Tubes for your DHT amp 6465 
Abandoning Milq? 6465 
Will see how it goes.... 6465 
Single-stage Milq vs. Sun Audio VT-2A3 6463 
Topology and 2A3? 6463 
6SN7-2A3 amps? 6463 
Type Casting 6463 
Sun Audio SV-2A3 6463 
6sn7-2a3 6463 
Topology vs parts 6463 
For a DHT amp, you are listening to the power supply 6463 
The vintage tubes syndrome. 6463 
Parts Frenzy 6463 
Too many new sounds 6463 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6462 
New tubes 6461 
Milq bias vs. batery bias 6461 
The batteries are a tricky thing. 6461 
Swimming the ocean at night? 6461 
New 2A3 6461 
To kill of do not kill the capacitor. 6460 
The JJ Electronic amp. 6459 
JJ 2A3 and amp 6459 
Czech tubes 6457 
Single plated vs Double plated? 6457 
Mono plate 2A3 tubes 6457 
I suggested once VT52 tube 6456 
The 800R vs. 1800R vs. 5500R 6456 
YO-186 as the output tube. 6453 
Here she is. 6452 
Some talks about the new production tubes 6448 
New 2A3 tubes 6448 
Some thoughts about one-IHT vs. multiple-DHT 6448 
The Sun Audio with 6E5P 6447 
Multistage DHT circuits 6446 
Wrong tube or wrong topology – here is the question. 6445 
Emission Labs 2A3 6445 
Some comment and questions about then 2A3 talks. 6445 
Which Chinese 2A3? 6445 
OK, for a first time I like the San Audio Kit. 6445 
The YO186 Strip Show 6445 
More on the 2A3 comparisons 6444 
It will be interesting…. 6444 
OPT impedence 6444 
More about the Plate Loading 6444 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6439 
2A3 data 6439 
The New 2A3 tubes 6439 
How many stages I need for 110dB sensitivity, smal... 6439 
How many stages and why... and who makes that 45 o... 6438 
Everything about everything. 6438 
Some very good points... and... possibly more logi... 6438 
Options, options, options.... 6438 
I think we agree overall 6438 
An IDHT with more gain? 6437 
You don't ask for much now, eh? 6437 
2A3 tube impressions 6432 
Interesting analogy 6432 
NOS 2A3 tubes versus new tubes 6432 
Hmmm, let me try this one again... 6432 
Sylvania 2A3 identification 6432 
A picture is worth a thousand micromhos? 6432 
I have more interest in the period tubes 6432 
Why NOS tubes? 6431 
The Holly Ignorance 6431 
Tube tasting 6431 
The cathodes’ flatulence? 6431 
Make mine thoriated please 6431 
Any Germans out there? 6431 
6E5P VS 6E6P 6431 
Vibrations? What do you with them? 6431 
Vibration in tubes and sounds 6431 
UX4 vs UX4ruskie 6430 
Ringing the tubes? I do not know how about that. 6430 
Tube sound and vibration 6430 
The thoughts collection about YO186? 6424 
The lights look green for the YO tube 6423 
"Melquiades" with YO-186. Something like... 6423 
My version of RE-604 and PX4 6422 
The YO186 tube sockets. 6422 
B4/B5 British made 6421 
The YO186’s sockets and prices 6421 
DHT 2A3 amplifier rectification 6420 
My attitude toward tube rectification. 6420 
Tu-be or not Tu-be, seems Tu-be the question. 6419 
It looks like DHT DSET is shaping up. 6418 
The Sylvania 2A3 NOS report 6415 
The Citizen Kane syndrome. 6415 
Sylvania 2A3 in a World without Color 6414 
Are NOS and new manufacture comparing oranges to o... 6414 
That all is incorrect in a way…. 6414 
NOS vs new 2A3 tubes 6414 
The identical operation environment? 6414 
Preferred 2A3 operating point 6414 
The sound of the 2A3 however? 6414 
Circuit modification for 2A3 optimization 6413 
How to get max power from 2A3 6413 
2A3 voltages, loads and realized output power 6413 
Optimal operation of 2A3: an experiment 6413 
Tubes, Whole Circuits, Expectations and Sound 6413 
Gain is not power. 6413 
2A3 amplifier modification & Optimization 6413 
Specialized DSET approach 6413 
6C33/2A3 DSET? 6413 
SET usable power and making the most of it 6413 
The 2A3 loading 6413 
DSET solution for EdgarHorn? 6413 
Optimizing the 2A3 6413 
How much to DSET a DSET 6413 
DSET for Titan 6413 
The Best of All Worlds 6413 
Multiamp setup 6412 
Optimizing the (NOS) 2A3... "KM-style"? 6412 
There are many opportunities, it all depends what ... 6412 
Modifying amplifer to optimize NOS 2A3 performance 6412 
Conceptualizing Melquiades DSET is done 6406 
2A3 and 400V supply 6406 
Pudding and the chicken wires 6405 
Another shot at numbers 6405 
How to cook the "uninformed" anode. 6405 
Okay, so this might work.... 6405 
The DHT Milq DSET, the prebuilt draft. 6405 
Looks good, but.... 6404 
2A3 with slightly lover filament voltage? 6404 
Less is more... usually. 6404 
Where to burn gain? how? and where to get beter st... 6403 
Stepping Out 6403 
Said to be good, but 6403 
Gain to lose 6403 
Why nothing is simple with this damn amp! 6403 
Another idea for losing gain 6403 
What's best 6403 
Options, options... 6403 
Actually, it is not so bad. 6403 
Other compromises... 6402 
Cathode vs. fixed with DHT 6401 
Is it glowing yet? 6381 
It is comming.... 6381 
The new MF channel. 6375 
I started to work on the Milq’s DHT Island. 6374 
Innerstage loading vs. OPT loading. 6366 
The intestage loading talk. 6363 
My playback feels like it is broken. 6358 
1 in 50? 6358 
Yes, it was after PP2000 6358 
Die Walküre soldering. 6357 
The post Die Walküre soldering 6356 
Another amp arond YO186 6355 
Gain? 6355 
The Unexpected problem with DHT Milq. 6355 
Simple is good 6354 
Ok, I am moving forward. 6354 
The Milq DSET is up. 6353 
My DH DSET – 2 days later. 6351 
Here is more data to reconcile. 6351 
Hm, that is interesting and unpleasant so far. 6350 
Ok, what do I want? 6350 
Let Go of Some Conceptual "Restrictions"? 6350 
The Milq DH DSET, the further thoughts in progress. 6350 
Crunching Numbers; Shaping Sound 6350 
How about the tweeter? 6349 
Tweeter Efficiency? 6349 
Safe and Sound 6349 
More mystery with tweeter but still on the subject. 6349 
Some clarifications. 6349 
How about that?!!! 6349 
Further considerations: DC-coupling. 6347 
Head Room 6347 
To kill the mandatory 13dB 6346 
DC coupling and killing 13db and driving 6e5p miller and.... 6346 
I do not think that it might be damaging… 6346 
Again with the PS 6346 
AKA J.C. Morrison’s amp but… 6344 
Parallel Universe 6344 
Melquiades HD MF DSET, Draft13. 6342 
Why I let other people build them... 6342 
Ok, it's going to right direction. 6342 
Ok, it looks already very close…. 6341 
The Loftinish-Whitish, well sort of…. 6338 
MF: the pre-final version. 6338 
Loftin-White? 6338 
Did anyone hear the PX4 amplifiers? 6338 
What Could use Improving at This Point? 6338 
The Milq’s MF front-end is done 6334 
Why I Let Other People Build Them, II 6334 
Define really quiet 6333 
Another variable of sound 6333 
Backlash? 6333 
Alternative filament supplies 6333 
I kind of faced a problem with AC 6333 
Going down the DC path 6332 
It is not about the “whole sound” but about “molec... 6332 
Molecular sound 6332 
AC-DC heater supply 6332 
The Tentlabs are $10 worth PS. 6332 
The unexpected resolution of AC vs. DC quandary. 6332 
The devil is less scared than it depicted. 6332 
Hiss or Hum 6332 
AC transformers 6332 
I have seen the Promised Land 6331 
OK, the choke noise is not a problem anymore 6331 
Ok, it is working fine but… 6330 
Divide and Conquer 6330 
The design phase is over. 6329 
The unexpected insanity! 6328 
Loading 6328 
Looking for inspiring ideas for 'universal' loadin... 6328 
A filaments Sherlock Holmes wanted. 6328 
Going the Distance 6328 
Read the f*** manual! 6328 
Agreed. 6328 
I agree 6328 
The filament transformer 6328 
Center-tap and options 6328 
Something like this…. 6328 
Avoiding "Dial-an-Amp" 6328 
The foreplay is going on. 6328 
Split balance 6327 
Further thoughts about my DH filaments 6327 
The Shuguang 2A3 tubes. 6327 
SHuguang 6327 
Going through…. 6326 
The 2.5V noise vs. 4V noise. 6325 
More about Shuguang 2A3C 6325 
Hum vs voltage 6325 
Meow about the tubes… 6325 
To Be a Content Cat 6325 
Completed! 6322 
Tradition 6322 
Absolutely beautiful! 6322 
The 'film' caps in PS 6321 
Science or religion 6321 
Mass Extinction 6321 
Electrolytics, technology and time 6321 
No more questions about PS capacitors. 6321 
Capacitor choices 6321 
Good time. Welcome back. Thanks God. 6320 
The minor day of Quartets. 6320 
Them's the Breaks 6320 
Eventually! 6319 
So Soon? 6319 
DHT MF channel and 6-ch amp: first conclusions 6319 
All Abuzz about Nothing 6318 
The wire for DC-coupling 6318 
The Dirt on DIY Backlash 6318 
DSET vs. the “better tubes”. 6318 
How to test the DH tubes properly? 6317 
Pairing up tubes for SE use 6316 
The DHT live reserve 6315 
Some interestng models 6315 
Eaten alive. 6315 
The tubey déjà vu? 6314 
The new concept of my output transformer. 6310 
The 4V takes a lead. 6306 
Listening the DH and the striped down version of M... 6303 
I kind of slowly learn what I need. 6303 
More HF from a transformer and DHT? 6301 
Since You Don't Need the Gain 6300 
Exiting the design mode? 6300 
Bye-bye the input divider on MF! 6300 
A few steps back and a gaint leap ahead. 6296 
Single-stage vs. DHT amp. 6295 
Setting up the new Playback 6294 
And the winner is… so far 6291 
If you like type 45... 6291 
Type 45... they're not all the same 6291 
Favorite Flavor? 6291 
The 45 times Meow... 6291 
The problem that I see is… 6291 
Running the 45 6291 
The 10Y...and bye bye Newton 6290 
The commentaries about everything. 6290 
Driver tube and biasing 6290 
DHT drivers 6290 
The ideas are worth trying? 6290 
A question about the polishing the things…. 6286 
The Particular Tube, I'm afraid... 6286 
Driving the 45... cathode first 6285 
ST or Globe; old or new... 6285 
Whatever sticks to the wall as an operation point ... 6285 
The attenuating crap in secondary. 6285 
Operating points and cathode current 6285 
The Burgeoning Opportunities! 6285 
Actually it is not so simple. 6285 
Resistors at the front 6284 
A minor alternation of a position 6284 
The era of enlightenment. 6281 
The devil is in the details.... 6281 
Constructing Sound 6281 
A new view on the DHT evaluation. 6280 
The “strange” YO186 6271 
The dead guy’s lessons. 6226 
2S4S and 2A3 6217 
Ho to use the YO186 6210 
YO 186 fundamental flavor 6210 
The YO-YO tube and "fundamentals" channel 6210 
The live without the YO186, again.... 6208 
Not anymore! 6197 
The very good YoYonisation! 6196 
….above and below two very clean channel. 6195 
The DHT and esoteric imaging deformation. 6182 
DHT, YO186, or??? 6182 
I had no idea how ‘different’ it is. 6129 
The Kazitsky Manufacturing and YO104, some history. 6128 
"Absolution and Eternal Refuge." 6125 
Sofia Electric Type 45 Mesh 6115 
The true association of YO186's Sounds. 5877 
All the Best from Burgundy 5877 
Cheesy tubes 5876 
Me and my DHT references… 5767 
Y0-186 in winter. 5670 
Y0-186 sounds like… 5669 
Rethinking the YO186 tube. 5638 
In My Dreams 5638 
Grunt from type 45? A ridicules comment. 5638 
Blame? 5637 
When good is not good enough. 5637 
45s, Drivers, and 45s 5637 
Hm, that was so simple after all! 5636 
How the YO186 was used. 5220 
What is old is new? 5219 
YO186 vs. type 45. 5218 
The YO186 is gone.... :-( 4767 
That sucks. 4767 
YO186 4765 
Hm, what the hell is going on? 4765 
I do not think that anybody but me would like YO186 4765 
A hallucination? 4762 
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