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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 6556 
One-stage Milq++ and the DHT's alleged tone 6555 
DHT Milq? 6555 
The DHT journey. 6555 
DHT tone 6555 
Well, why not? 6554 
Holding the Fort 6554 
My DHT experiment: Preface 6554 
Input tube and DC heaters 6553 
Reimyo Pat 777 6553 
My DHT experiment: Observations 6549 
DHT or 300B? 6549 
300B 6549 
Talking, perception and the grounds for objectively 6549 
The Wine Via the Wine Glass 6548 
Hence the confusion 6548 
My DHT experiment: some conclusions. 6548 
Reality Reconstruction is not a functionality. 6548 
My experience with DHTs 6548 
Pigmented coloration? 6548 
Dht-dht 6548 
Dynamic viscosity? 6548 
The Pallette preamp... 6548 
If one DHT is good, two must be better? 6548 
"soul" of tubes 6548 
There is a difference... 6548 
Vibration injection? 6548 
Homework # 4334 6548 
The 01A-71A-10Y-45 chain 6548 
Old valves have more soul! 6547 
Was it soul or soil? 6547 
It was just a heading 6547 
Adjustable color: TIMBRE LOCK? 6547 
Neutral or neutral/uncoloured? 6547 
..are lacking in power, dynamics and bandwidth. 6547 
Timbre-Lock. Not quite ready for prime time. 6547 
Injection of analog dither? 6547 
Subliminal signal 6547 
The idea of analog randomanization. 6547 
Okay, what Avicena Power Generator 6547 
I hope you will be hearing about it. 6546 
Avicenna = Arabian 6546 
Persian, not Arab 6546 
The “second solution” - a major disappointment 6546 
More words to describe "sux" please 6546 
Revolution 6546 
The non-melodramatic DHT? 6546 
One-stage DHTs 6545 
One other thing 6545 
One stage 6545 
Brewing, thinking and heating 6545 
Physical characteristics of electronic devices 6545 
I see the things differently. 6545 
Don't waste time being "creative" 6545 
The audiophile attitude 6545 
The where and why of design choices 6545 
Blah blah blah 6545 
Laconic Clarity vs. Comfort vs. Nostalgia 6545 
Do I need to be hissing? 6545 
...associated with lack of neutrality and colorati... 6545 
John Broskie's Partial feedback amplifier 6545 
Randomness vs. freedom and the Homework # 4334 6544 
What is randomness? 6544 
Those least three possibilities… 6544 
Randomness and Music's Prerogative 6544 
It works, … sort of. The revolution is canceled. 6544 
Thorsten Loesch’s article about DHT SETs 6542 
A Beautiful Mind 6541 
Some summary and conclusions from the first phase. 6539 
Second phase: revising requirement for my DHT objectives. 6524 
Tubes for your DHT amp 6524 
Abandoning Milq? 6524 
Will see how it goes.... 6524 
Single-stage Milq vs. Sun Audio VT-2A3 6522 
Topology and 2A3? 6522 
6SN7-2A3 amps? 6522 
Type Casting 6522 
Sun Audio SV-2A3 6522 
6sn7-2a3 6522 
Topology vs parts 6522 
For a DHT amp, you are listening to the power supply 6522 
The vintage tubes syndrome. 6522 
Parts Frenzy 6522 
Too many new sounds 6522 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6521 
New tubes 6520 
Milq bias vs. batery bias 6520 
The batteries are a tricky thing. 6520 
Swimming the ocean at night? 6520 
New 2A3 6520 
To kill of do not kill the capacitor. 6519 
The JJ Electronic amp. 6518 
JJ 2A3 and amp 6518 
Czech tubes 6516 
Single plated vs Double plated? 6516 
Mono plate 2A3 tubes 6516 
I suggested once VT52 tube 6515 
The 800R vs. 1800R vs. 5500R 6515 
YO-186 as the output tube. 6512 
Here she is. 6511 
Some talks about the new production tubes 6507 
New 2A3 tubes 6507 
Some thoughts about one-IHT vs. multiple-DHT 6507 
The Sun Audio with 6E5P 6506 
Multistage DHT circuits 6505 
Wrong tube or wrong topology – here is the question. 6504 
Emission Labs 2A3 6504 
Some comment and questions about then 2A3 talks. 6504 
Which Chinese 2A3? 6504 
OK, for a first time I like the San Audio Kit. 6504 
The YO186 Strip Show 6504 
More on the 2A3 comparisons 6503 
It will be interesting…. 6503 
OPT impedence 6503 
More about the Plate Loading 6503 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6498 
2A3 data 6498 
The New 2A3 tubes 6498 
How many stages I need for 110dB sensitivity, smal... 6498 
How many stages and why... and who makes that 45 o... 6497 
Everything about everything. 6497 
Some very good points... and... possibly more logi... 6497 
Options, options, options.... 6497 
I think we agree overall 6497 
An IDHT with more gain? 6496 
You don't ask for much now, eh? 6496 
2A3 tube impressions 6491 
Interesting analogy 6491 
NOS 2A3 tubes versus new tubes 6491 
Hmmm, let me try this one again... 6491 
Sylvania 2A3 identification 6491 
A picture is worth a thousand micromhos? 6491 
I have more interest in the period tubes 6491 
Why NOS tubes? 6490 
The Holly Ignorance 6490 
Tube tasting 6490 
The cathodes’ flatulence? 6490 
Make mine thoriated please 6490 
Any Germans out there? 6490 
6E5P VS 6E6P 6490 
Vibrations? What do you with them? 6490 
Vibration in tubes and sounds 6490 
UX4 vs UX4ruskie 6489 
Ringing the tubes? I do not know how about that. 6489 
Tube sound and vibration 6489 
The thoughts collection about YO186? 6483 
The lights look green for the YO tube 6482 
"Melquiades" with YO-186. Something like... 6482 
My version of RE-604 and PX4 6481 
The YO186 tube sockets. 6481 
B4/B5 British made 6480 
The YO186’s sockets and prices 6480 
DHT 2A3 amplifier rectification 6479 
My attitude toward tube rectification. 6479 
Tu-be or not Tu-be, seems Tu-be the question. 6478 
It looks like DHT DSET is shaping up. 6477 
The Sylvania 2A3 NOS report 6474 
The Citizen Kane syndrome. 6474 
Sylvania 2A3 in a World without Color 6473 
Are NOS and new manufacture comparing oranges to o... 6473 
That all is incorrect in a way…. 6473 
NOS vs new 2A3 tubes 6473 
The identical operation environment? 6473 
Preferred 2A3 operating point 6473 
The sound of the 2A3 however? 6473 
Circuit modification for 2A3 optimization 6472 
How to get max power from 2A3 6472 
2A3 voltages, loads and realized output power 6472 
Optimal operation of 2A3: an experiment 6472 
Tubes, Whole Circuits, Expectations and Sound 6472 
Gain is not power. 6472 
2A3 amplifier modification & Optimization 6472 
Specialized DSET approach 6472 
6C33/2A3 DSET? 6472 
SET usable power and making the most of it 6472 
The 2A3 loading 6472 
DSET solution for EdgarHorn? 6472 
Optimizing the 2A3 6472 
How much to DSET a DSET 6472 
DSET for Titan 6472 
The Best of All Worlds 6472 
Multiamp setup 6471 
Optimizing the (NOS) 2A3... "KM-style"? 6471 
There are many opportunities, it all depends what ... 6471 
Modifying amplifer to optimize NOS 2A3 performance 6471 
Conceptualizing Melquiades DSET is done 6465 
2A3 and 400V supply 6465 
Pudding and the chicken wires 6464 
Another shot at numbers 6464 
How to cook the "uninformed" anode. 6464 
Okay, so this might work.... 6464 
The DHT Milq DSET, the prebuilt draft. 6464 
Looks good, but.... 6463 
2A3 with slightly lover filament voltage? 6463 
Less is more... usually. 6463 
Where to burn gain? how? and where to get beter st... 6462 
Stepping Out 6462 
Said to be good, but 6462 
Gain to lose 6462 
Why nothing is simple with this damn amp! 6462 
Another idea for losing gain 6462 
What's best 6462 
Options, options... 6462 
Actually, it is not so bad. 6462 
Other compromises... 6461 
Cathode vs. fixed with DHT 6460 
Is it glowing yet? 6440 
It is comming.... 6440 
The new MF channel. 6434 
I started to work on the Milq’s DHT Island. 6433 
Innerstage loading vs. OPT loading. 6425 
The intestage loading talk. 6422 
My playback feels like it is broken. 6417 
1 in 50? 6417 
Yes, it was after PP2000 6417 
Die Walküre soldering. 6416 
The post Die Walküre soldering 6415 
Another amp arond YO186 6414 
Gain? 6414 
The Unexpected problem with DHT Milq. 6414 
Simple is good 6413 
Ok, I am moving forward. 6413 
The Milq DSET is up. 6412 
My DH DSET – 2 days later. 6410 
Here is more data to reconcile. 6410 
Hm, that is interesting and unpleasant so far. 6409 
Ok, what do I want? 6409 
Let Go of Some Conceptual "Restrictions"? 6409 
The Milq DH DSET, the further thoughts in progress. 6409 
Crunching Numbers; Shaping Sound 6409 
How about the tweeter? 6408 
Tweeter Efficiency? 6408 
Safe and Sound 6408 
More mystery with tweeter but still on the subject. 6408 
Some clarifications. 6408 
How about that?!!! 6408 
Further considerations: DC-coupling. 6406 
Head Room 6406 
To kill the mandatory 13dB 6405 
DC coupling and killing 13db and driving 6e5p miller and.... 6405 
I do not think that it might be damaging… 6405 
Again with the PS 6405 
AKA J.C. Morrison’s amp but… 6403 
Parallel Universe 6403 
Melquiades HD MF DSET, Draft13. 6401 
Why I let other people build them... 6401 
Ok, it's going to right direction. 6401 
Ok, it looks already very close…. 6400 
The Loftinish-Whitish, well sort of…. 6397 
MF: the pre-final version. 6397 
Loftin-White? 6397 
Did anyone hear the PX4 amplifiers? 6397 
What Could use Improving at This Point? 6397 
The Milq’s MF front-end is done 6393 
Why I Let Other People Build Them, II 6393 
Define really quiet 6392 
Another variable of sound 6392 
Backlash? 6392 
Alternative filament supplies 6392 
I kind of faced a problem with AC 6392 
Going down the DC path 6391 
It is not about the “whole sound” but about “molec... 6391 
Molecular sound 6391 
AC-DC heater supply 6391 
The Tentlabs are $10 worth PS. 6391 
The unexpected resolution of AC vs. DC quandary. 6391 
The devil is less scared than it depicted. 6391 
Hiss or Hum 6391 
AC transformers 6391 
I have seen the Promised Land 6390 
OK, the choke noise is not a problem anymore 6390 
Ok, it is working fine but… 6389 
Divide and Conquer 6389 
The design phase is over. 6388 
The unexpected insanity! 6387 
Loading 6387 
Looking for inspiring ideas for 'universal' loadin... 6387 
A filaments Sherlock Holmes wanted. 6387 
Going the Distance 6387 
Read the f*** manual! 6387 
Agreed. 6387 
I agree 6387 
The filament transformer 6387 
Center-tap and options 6387 
Something like this…. 6387 
Avoiding "Dial-an-Amp" 6387 
The foreplay is going on. 6387 
Split balance 6386 
Further thoughts about my DH filaments 6386 
The Shuguang 2A3 tubes. 6386 
SHuguang 6386 
Going through…. 6385 
The 2.5V noise vs. 4V noise. 6384 
More about Shuguang 2A3C 6384 
Hum vs voltage 6384 
Meow about the tubes… 6384 
To Be a Content Cat 6384 
Completed! 6381 
Tradition 6381 
Absolutely beautiful! 6381 
The 'film' caps in PS 6380 
Science or religion 6380 
Mass Extinction 6380 
Electrolytics, technology and time 6380 
No more questions about PS capacitors. 6380 
Capacitor choices 6380 
Good time. Welcome back. Thanks God. 6379 
The minor day of Quartets. 6379 
Them's the Breaks 6379 
Eventually! 6378 
So Soon? 6378 
DHT MF channel and 6-ch amp: first conclusions 6378 
All Abuzz about Nothing 6377 
The wire for DC-coupling 6377 
The Dirt on DIY Backlash 6377 
DSET vs. the “better tubes”. 6377 
How to test the DH tubes properly? 6376 
Pairing up tubes for SE use 6375 
The DHT live reserve 6374 
Some interestng models 6374 
Eaten alive. 6374 
The tubey déjà vu? 6373 
The new concept of my output transformer. 6369 
The 4V takes a lead. 6365 
Listening the DH and the striped down version of M... 6362 
I kind of slowly learn what I need. 6362 
More HF from a transformer and DHT? 6360 
Since You Don't Need the Gain 6359 
Exiting the design mode? 6359 
Bye-bye the input divider on MF! 6359 
A few steps back and a gaint leap ahead. 6355 
Single-stage vs. DHT amp. 6354 
Setting up the new Playback 6353 
And the winner is… so far 6350 
If you like type 45... 6350 
Type 45... they're not all the same 6350 
Favorite Flavor? 6350 
The 45 times Meow... 6350 
The problem that I see is… 6350 
Running the 45 6350 
The 10Y...and bye bye Newton 6349 
The commentaries about everything. 6349 
Driver tube and biasing 6349 
DHT drivers 6349 
The ideas are worth trying? 6349 
A question about the polishing the things…. 6345 
The Particular Tube, I'm afraid... 6345 
Driving the 45... cathode first 6344 
ST or Globe; old or new... 6344 
Whatever sticks to the wall as an operation point ... 6344 
The attenuating crap in secondary. 6344 
Operating points and cathode current 6344 
The Burgeoning Opportunities! 6344 
Actually it is not so simple. 6344 
Resistors at the front 6343 
A minor alternation of a position 6343 
The era of enlightenment. 6340 
The devil is in the details.... 6340 
Constructing Sound 6340 
A new view on the DHT evaluation. 6339 
The “strange” YO186 6330 
The dead guy’s lessons. 6285 
2S4S and 2A3 6276 
Ho to use the YO186 6269 
YO 186 fundamental flavor 6269 
The YO-YO tube and "fundamentals" channel 6269 
The live without the YO186, again.... 6267 
Not anymore! 6256 
The very good YoYonisation! 6255 
….above and below two very clean channel. 6254 
The DHT and esoteric imaging deformation. 6241 
DHT, YO186, or??? 6241 
I had no idea how ‘different’ it is. 6188 
The Kazitsky Manufacturing and YO104, some history. 6187 
"Absolution and Eternal Refuge." 6184 
Sofia Electric Type 45 Mesh 6174 
The true association of YO186's Sounds. 5936 
All the Best from Burgundy 5936 
Cheesy tubes 5935 
Me and my DHT references… 5826 
Y0-186 in winter. 5729 
Y0-186 sounds like… 5728 
Rethinking the YO186 tube. 5697 
In My Dreams 5697 
Grunt from type 45? A ridicules comment. 5697 
Blame? 5696 
When good is not good enough. 5696 
45s, Drivers, and 45s 5696 
Hm, that was so simple after all! 5695 
How the YO186 was used. 5279 
What is old is new? 5278 
YO186 vs. type 45. 5277 
The YO186 is gone.... :-( 4826 
That sucks. 4826 
YO186 4824 
Hm, what the hell is going on? 4824 
I do not think that anybody but me would like YO186 4824 
A hallucination? 4821 
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