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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 6518 
One-stage Milq++ and the DHT's alleged tone 6517 
DHT Milq? 6517 
The DHT journey. 6517 
DHT tone 6517 
Well, why not? 6516 
Holding the Fort 6516 
My DHT experiment: Preface 6516 
Input tube and DC heaters 6515 
Reimyo Pat 777 6515 
My DHT experiment: Observations 6511 
DHT or 300B? 6511 
300B 6511 
Talking, perception and the grounds for objectively 6511 
The Wine Via the Wine Glass 6510 
Hence the confusion 6510 
My DHT experiment: some conclusions. 6510 
Reality Reconstruction is not a functionality. 6510 
My experience with DHTs 6510 
Pigmented coloration? 6510 
Dht-dht 6510 
Dynamic viscosity? 6510 
The Pallette preamp... 6510 
If one DHT is good, two must be better? 6510 
"soul" of tubes 6510 
There is a difference... 6510 
Vibration injection? 6510 
Homework # 4334 6510 
The 01A-71A-10Y-45 chain 6510 
Old valves have more soul! 6509 
Was it soul or soil? 6509 
It was just a heading 6509 
Adjustable color: TIMBRE LOCK? 6509 
Neutral or neutral/uncoloured? 6509 
..are lacking in power, dynamics and bandwidth. 6509 
Timbre-Lock. Not quite ready for prime time. 6509 
Injection of analog dither? 6509 
Subliminal signal 6509 
The idea of analog randomanization. 6509 
Okay, what Avicena Power Generator 6509 
I hope you will be hearing about it. 6508 
Avicenna = Arabian 6508 
Persian, not Arab 6508 
The “second solution” - a major disappointment 6508 
More words to describe "sux" please 6508 
Revolution 6508 
The non-melodramatic DHT? 6508 
One-stage DHTs 6507 
One other thing 6507 
One stage 6507 
Brewing, thinking and heating 6507 
Physical characteristics of electronic devices 6507 
I see the things differently. 6507 
Don't waste time being "creative" 6507 
The audiophile attitude 6507 
The where and why of design choices 6507 
Blah blah blah 6507 
Laconic Clarity vs. Comfort vs. Nostalgia 6507 
Do I need to be hissing? 6507 
...associated with lack of neutrality and colorati... 6507 
John Broskie's Partial feedback amplifier 6507 
Randomness vs. freedom and the Homework # 4334 6506 
What is randomness? 6506 
Those least three possibilities… 6506 
Randomness and Music's Prerogative 6506 
It works, … sort of. The revolution is canceled. 6506 
Thorsten Loesch’s article about DHT SETs 6504 
A Beautiful Mind 6503 
Some summary and conclusions from the first phase. 6501 
Second phase: revising requirement for my DHT objectives. 6486 
Tubes for your DHT amp 6486 
Abandoning Milq? 6486 
Will see how it goes.... 6486 
Single-stage Milq vs. Sun Audio VT-2A3 6484 
Topology and 2A3? 6484 
6SN7-2A3 amps? 6484 
Type Casting 6484 
Sun Audio SV-2A3 6484 
6sn7-2a3 6484 
Topology vs parts 6484 
For a DHT amp, you are listening to the power supply 6484 
The vintage tubes syndrome. 6484 
Parts Frenzy 6484 
Too many new sounds 6484 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6483 
New tubes 6482 
Milq bias vs. batery bias 6482 
The batteries are a tricky thing. 6482 
Swimming the ocean at night? 6482 
New 2A3 6482 
To kill of do not kill the capacitor. 6481 
The JJ Electronic amp. 6480 
JJ 2A3 and amp 6480 
Czech tubes 6478 
Single plated vs Double plated? 6478 
Mono plate 2A3 tubes 6478 
I suggested once VT52 tube 6477 
The 800R vs. 1800R vs. 5500R 6477 
YO-186 as the output tube. 6474 
Here she is. 6473 
Some talks about the new production tubes 6469 
New 2A3 tubes 6469 
Some thoughts about one-IHT vs. multiple-DHT 6469 
The Sun Audio with 6E5P 6468 
Multistage DHT circuits 6467 
Wrong tube or wrong topology – here is the question. 6466 
Emission Labs 2A3 6466 
Some comment and questions about then 2A3 talks. 6466 
Which Chinese 2A3? 6466 
OK, for a first time I like the San Audio Kit. 6466 
The YO186 Strip Show 6466 
More on the 2A3 comparisons 6465 
It will be interesting…. 6465 
OPT impedence 6465 
More about the Plate Loading 6465 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6460 
2A3 data 6460 
The New 2A3 tubes 6460 
How many stages I need for 110dB sensitivity, smal... 6460 
How many stages and why... and who makes that 45 o... 6459 
Everything about everything. 6459 
Some very good points... and... possibly more logi... 6459 
Options, options, options.... 6459 
I think we agree overall 6459 
An IDHT with more gain? 6458 
You don't ask for much now, eh? 6458 
2A3 tube impressions 6453 
Interesting analogy 6453 
NOS 2A3 tubes versus new tubes 6453 
Hmmm, let me try this one again... 6453 
Sylvania 2A3 identification 6453 
A picture is worth a thousand micromhos? 6453 
I have more interest in the period tubes 6453 
Why NOS tubes? 6452 
The Holly Ignorance 6452 
Tube tasting 6452 
The cathodes’ flatulence? 6452 
Make mine thoriated please 6452 
Any Germans out there? 6452 
6E5P VS 6E6P 6452 
Vibrations? What do you with them? 6452 
Vibration in tubes and sounds 6452 
UX4 vs UX4ruskie 6451 
Ringing the tubes? I do not know how about that. 6451 
Tube sound and vibration 6451 
The thoughts collection about YO186? 6445 
The lights look green for the YO tube 6444 
"Melquiades" with YO-186. Something like... 6444 
My version of RE-604 and PX4 6443 
The YO186 tube sockets. 6443 
B4/B5 British made 6442 
The YO186’s sockets and prices 6442 
DHT 2A3 amplifier rectification 6441 
My attitude toward tube rectification. 6441 
Tu-be or not Tu-be, seems Tu-be the question. 6440 
It looks like DHT DSET is shaping up. 6439 
The Sylvania 2A3 NOS report 6436 
The Citizen Kane syndrome. 6436 
Sylvania 2A3 in a World without Color 6435 
Are NOS and new manufacture comparing oranges to o... 6435 
That all is incorrect in a way…. 6435 
NOS vs new 2A3 tubes 6435 
The identical operation environment? 6435 
Preferred 2A3 operating point 6435 
The sound of the 2A3 however? 6435 
Circuit modification for 2A3 optimization 6434 
How to get max power from 2A3 6434 
2A3 voltages, loads and realized output power 6434 
Optimal operation of 2A3: an experiment 6434 
Tubes, Whole Circuits, Expectations and Sound 6434 
Gain is not power. 6434 
2A3 amplifier modification & Optimization 6434 
Specialized DSET approach 6434 
6C33/2A3 DSET? 6434 
SET usable power and making the most of it 6434 
The 2A3 loading 6434 
DSET solution for EdgarHorn? 6434 
Optimizing the 2A3 6434 
How much to DSET a DSET 6434 
DSET for Titan 6434 
The Best of All Worlds 6434 
Multiamp setup 6433 
Optimizing the (NOS) 2A3... "KM-style"? 6433 
There are many opportunities, it all depends what ... 6433 
Modifying amplifer to optimize NOS 2A3 performance 6433 
Conceptualizing Melquiades DSET is done 6427 
2A3 and 400V supply 6427 
Pudding and the chicken wires 6426 
Another shot at numbers 6426 
How to cook the "uninformed" anode. 6426 
Okay, so this might work.... 6426 
The DHT Milq DSET, the prebuilt draft. 6426 
Looks good, but.... 6425 
2A3 with slightly lover filament voltage? 6425 
Less is more... usually. 6425 
Where to burn gain? how? and where to get beter st... 6424 
Stepping Out 6424 
Said to be good, but 6424 
Gain to lose 6424 
Why nothing is simple with this damn amp! 6424 
Another idea for losing gain 6424 
What's best 6424 
Options, options... 6424 
Actually, it is not so bad. 6424 
Other compromises... 6423 
Cathode vs. fixed with DHT 6422 
Is it glowing yet? 6402 
It is comming.... 6402 
The new MF channel. 6396 
I started to work on the Milq’s DHT Island. 6395 
Innerstage loading vs. OPT loading. 6387 
The intestage loading talk. 6384 
My playback feels like it is broken. 6379 
1 in 50? 6379 
Yes, it was after PP2000 6379 
Die Walküre soldering. 6378 
The post Die Walküre soldering 6377 
Another amp arond YO186 6376 
Gain? 6376 
The Unexpected problem with DHT Milq. 6376 
Simple is good 6375 
Ok, I am moving forward. 6375 
The Milq DSET is up. 6374 
My DH DSET – 2 days later. 6372 
Here is more data to reconcile. 6372 
Hm, that is interesting and unpleasant so far. 6371 
Ok, what do I want? 6371 
Let Go of Some Conceptual "Restrictions"? 6371 
The Milq DH DSET, the further thoughts in progress. 6371 
Crunching Numbers; Shaping Sound 6371 
How about the tweeter? 6370 
Tweeter Efficiency? 6370 
Safe and Sound 6370 
More mystery with tweeter but still on the subject. 6370 
Some clarifications. 6370 
How about that?!!! 6370 
Further considerations: DC-coupling. 6368 
Head Room 6368 
To kill the mandatory 13dB 6367 
DC coupling and killing 13db and driving 6e5p miller and.... 6367 
I do not think that it might be damaging… 6367 
Again with the PS 6367 
AKA J.C. Morrison’s amp but… 6365 
Parallel Universe 6365 
Melquiades HD MF DSET, Draft13. 6363 
Why I let other people build them... 6363 
Ok, it's going to right direction. 6363 
Ok, it looks already very close…. 6362 
The Loftinish-Whitish, well sort of…. 6359 
MF: the pre-final version. 6359 
Loftin-White? 6359 
Did anyone hear the PX4 amplifiers? 6359 
What Could use Improving at This Point? 6359 
The Milq’s MF front-end is done 6355 
Why I Let Other People Build Them, II 6355 
Define really quiet 6354 
Another variable of sound 6354 
Backlash? 6354 
Alternative filament supplies 6354 
I kind of faced a problem with AC 6354 
Going down the DC path 6353 
It is not about the “whole sound” but about “molec... 6353 
Molecular sound 6353 
AC-DC heater supply 6353 
The Tentlabs are $10 worth PS. 6353 
The unexpected resolution of AC vs. DC quandary. 6353 
The devil is less scared than it depicted. 6353 
Hiss or Hum 6353 
AC transformers 6353 
I have seen the Promised Land 6352 
OK, the choke noise is not a problem anymore 6352 
Ok, it is working fine but… 6351 
Divide and Conquer 6351 
The design phase is over. 6350 
The unexpected insanity! 6349 
Loading 6349 
Looking for inspiring ideas for 'universal' loadin... 6349 
A filaments Sherlock Holmes wanted. 6349 
Going the Distance 6349 
Read the f*** manual! 6349 
Agreed. 6349 
I agree 6349 
The filament transformer 6349 
Center-tap and options 6349 
Something like this…. 6349 
Avoiding "Dial-an-Amp" 6349 
The foreplay is going on. 6349 
Split balance 6348 
Further thoughts about my DH filaments 6348 
The Shuguang 2A3 tubes. 6348 
SHuguang 6348 
Going through…. 6347 
The 2.5V noise vs. 4V noise. 6346 
More about Shuguang 2A3C 6346 
Hum vs voltage 6346 
Meow about the tubes… 6346 
To Be a Content Cat 6346 
Completed! 6343 
Tradition 6343 
Absolutely beautiful! 6343 
The 'film' caps in PS 6342 
Science or religion 6342 
Mass Extinction 6342 
Electrolytics, technology and time 6342 
No more questions about PS capacitors. 6342 
Capacitor choices 6342 
Good time. Welcome back. Thanks God. 6341 
The minor day of Quartets. 6341 
Them's the Breaks 6341 
Eventually! 6340 
So Soon? 6340 
DHT MF channel and 6-ch amp: first conclusions 6340 
All Abuzz about Nothing 6339 
The wire for DC-coupling 6339 
The Dirt on DIY Backlash 6339 
DSET vs. the “better tubes”. 6339 
How to test the DH tubes properly? 6338 
Pairing up tubes for SE use 6337 
The DHT live reserve 6336 
Some interestng models 6336 
Eaten alive. 6336 
The tubey déjà vu? 6335 
The new concept of my output transformer. 6331 
The 4V takes a lead. 6327 
Listening the DH and the striped down version of M... 6324 
I kind of slowly learn what I need. 6324 
More HF from a transformer and DHT? 6322 
Since You Don't Need the Gain 6321 
Exiting the design mode? 6321 
Bye-bye the input divider on MF! 6321 
A few steps back and a gaint leap ahead. 6317 
Single-stage vs. DHT amp. 6316 
Setting up the new Playback 6315 
And the winner is… so far 6312 
If you like type 45... 6312 
Type 45... they're not all the same 6312 
Favorite Flavor? 6312 
The 45 times Meow... 6312 
The problem that I see is… 6312 
Running the 45 6312 
The 10Y...and bye bye Newton 6311 
The commentaries about everything. 6311 
Driver tube and biasing 6311 
DHT drivers 6311 
The ideas are worth trying? 6311 
A question about the polishing the things…. 6307 
The Particular Tube, I'm afraid... 6307 
Driving the 45... cathode first 6306 
ST or Globe; old or new... 6306 
Whatever sticks to the wall as an operation point ... 6306 
The attenuating crap in secondary. 6306 
Operating points and cathode current 6306 
The Burgeoning Opportunities! 6306 
Actually it is not so simple. 6306 
Resistors at the front 6305 
A minor alternation of a position 6305 
The era of enlightenment. 6302 
The devil is in the details.... 6302 
Constructing Sound 6302 
A new view on the DHT evaluation. 6301 
The “strange” YO186 6292 
The dead guy’s lessons. 6247 
2S4S and 2A3 6238 
Ho to use the YO186 6231 
YO 186 fundamental flavor 6231 
The YO-YO tube and "fundamentals" channel 6231 
The live without the YO186, again.... 6229 
Not anymore! 6218 
The very good YoYonisation! 6217 
….above and below two very clean channel. 6216 
The DHT and esoteric imaging deformation. 6203 
DHT, YO186, or??? 6203 
I had no idea how ‘different’ it is. 6150 
The Kazitsky Manufacturing and YO104, some history. 6149 
"Absolution and Eternal Refuge." 6146 
Sofia Electric Type 45 Mesh 6136 
The true association of YO186's Sounds. 5898 
All the Best from Burgundy 5898 
Cheesy tubes 5897 
Me and my DHT references… 5788 
Y0-186 in winter. 5691 
Y0-186 sounds like… 5690 
Rethinking the YO186 tube. 5659 
In My Dreams 5659 
Grunt from type 45? A ridicules comment. 5659 
Blame? 5658 
When good is not good enough. 5658 
45s, Drivers, and 45s 5658 
Hm, that was so simple after all! 5657 
How the YO186 was used. 5241 
What is old is new? 5240 
YO186 vs. type 45. 5239 
The YO186 is gone.... :-( 4788 
That sucks. 4788 
YO186 4786 
Hm, what the hell is going on? 4786 
I do not think that anybody but me would like YO186 4786 
A hallucination? 4783 
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