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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 6549 
One-stage Milq++ and the DHT's alleged tone 6548 
DHT Milq? 6548 
The DHT journey. 6548 
DHT tone 6548 
Well, why not? 6547 
Holding the Fort 6547 
My DHT experiment: Preface 6547 
Input tube and DC heaters 6546 
Reimyo Pat 777 6546 
My DHT experiment: Observations 6542 
DHT or 300B? 6542 
300B 6542 
Talking, perception and the grounds for objectively 6542 
The Wine Via the Wine Glass 6541 
Hence the confusion 6541 
My DHT experiment: some conclusions. 6541 
Reality Reconstruction is not a functionality. 6541 
My experience with DHTs 6541 
Pigmented coloration? 6541 
Dht-dht 6541 
Dynamic viscosity? 6541 
The Pallette preamp... 6541 
If one DHT is good, two must be better? 6541 
"soul" of tubes 6541 
There is a difference... 6541 
Vibration injection? 6541 
Homework # 4334 6541 
The 01A-71A-10Y-45 chain 6541 
Old valves have more soul! 6540 
Was it soul or soil? 6540 
It was just a heading 6540 
Adjustable color: TIMBRE LOCK? 6540 
Neutral or neutral/uncoloured? 6540 
..are lacking in power, dynamics and bandwidth. 6540 
Timbre-Lock. Not quite ready for prime time. 6540 
Injection of analog dither? 6540 
Subliminal signal 6540 
The idea of analog randomanization. 6540 
Okay, what Avicena Power Generator 6540 
I hope you will be hearing about it. 6539 
Avicenna = Arabian 6539 
Persian, not Arab 6539 
The “second solution” - a major disappointment 6539 
More words to describe "sux" please 6539 
Revolution 6539 
The non-melodramatic DHT? 6539 
One-stage DHTs 6538 
One other thing 6538 
One stage 6538 
Brewing, thinking and heating 6538 
Physical characteristics of electronic devices 6538 
I see the things differently. 6538 
Don't waste time being "creative" 6538 
The audiophile attitude 6538 
The where and why of design choices 6538 
Blah blah blah 6538 
Laconic Clarity vs. Comfort vs. Nostalgia 6538 
Do I need to be hissing? 6538 
...associated with lack of neutrality and colorati... 6538 
John Broskie's Partial feedback amplifier 6538 
Randomness vs. freedom and the Homework # 4334 6537 
What is randomness? 6537 
Those least three possibilities… 6537 
Randomness and Music's Prerogative 6537 
It works, … sort of. The revolution is canceled. 6537 
Thorsten Loesch’s article about DHT SETs 6535 
A Beautiful Mind 6534 
Some summary and conclusions from the first phase. 6532 
Second phase: revising requirement for my DHT objectives. 6517 
Tubes for your DHT amp 6517 
Abandoning Milq? 6517 
Will see how it goes.... 6517 
Single-stage Milq vs. Sun Audio VT-2A3 6515 
Topology and 2A3? 6515 
6SN7-2A3 amps? 6515 
Type Casting 6515 
Sun Audio SV-2A3 6515 
6sn7-2a3 6515 
Topology vs parts 6515 
For a DHT amp, you are listening to the power supply 6515 
The vintage tubes syndrome. 6515 
Parts Frenzy 6515 
Too many new sounds 6515 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6514 
New tubes 6513 
Milq bias vs. batery bias 6513 
The batteries are a tricky thing. 6513 
Swimming the ocean at night? 6513 
New 2A3 6513 
To kill of do not kill the capacitor. 6512 
The JJ Electronic amp. 6511 
JJ 2A3 and amp 6511 
Czech tubes 6509 
Single plated vs Double plated? 6509 
Mono plate 2A3 tubes 6509 
I suggested once VT52 tube 6508 
The 800R vs. 1800R vs. 5500R 6508 
YO-186 as the output tube. 6505 
Here she is. 6504 
Some talks about the new production tubes 6500 
New 2A3 tubes 6500 
Some thoughts about one-IHT vs. multiple-DHT 6500 
The Sun Audio with 6E5P 6499 
Multistage DHT circuits 6498 
Wrong tube or wrong topology – here is the question. 6497 
Emission Labs 2A3 6497 
Some comment and questions about then 2A3 talks. 6497 
Which Chinese 2A3? 6497 
OK, for a first time I like the San Audio Kit. 6497 
The YO186 Strip Show 6497 
More on the 2A3 comparisons 6496 
It will be interesting…. 6496 
OPT impedence 6496 
More about the Plate Loading 6496 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6491 
2A3 data 6491 
The New 2A3 tubes 6491 
How many stages I need for 110dB sensitivity, smal... 6491 
How many stages and why... and who makes that 45 o... 6490 
Everything about everything. 6490 
Some very good points... and... possibly more logi... 6490 
Options, options, options.... 6490 
I think we agree overall 6490 
An IDHT with more gain? 6489 
You don't ask for much now, eh? 6489 
2A3 tube impressions 6484 
Interesting analogy 6484 
NOS 2A3 tubes versus new tubes 6484 
Hmmm, let me try this one again... 6484 
Sylvania 2A3 identification 6484 
A picture is worth a thousand micromhos? 6484 
I have more interest in the period tubes 6484 
Why NOS tubes? 6483 
The Holly Ignorance 6483 
Tube tasting 6483 
The cathodes’ flatulence? 6483 
Make mine thoriated please 6483 
Any Germans out there? 6483 
6E5P VS 6E6P 6483 
Vibrations? What do you with them? 6483 
Vibration in tubes and sounds 6483 
UX4 vs UX4ruskie 6482 
Ringing the tubes? I do not know how about that. 6482 
Tube sound and vibration 6482 
The thoughts collection about YO186? 6476 
The lights look green for the YO tube 6475 
"Melquiades" with YO-186. Something like... 6475 
My version of RE-604 and PX4 6474 
The YO186 tube sockets. 6474 
B4/B5 British made 6473 
The YO186’s sockets and prices 6473 
DHT 2A3 amplifier rectification 6472 
My attitude toward tube rectification. 6472 
Tu-be or not Tu-be, seems Tu-be the question. 6471 
It looks like DHT DSET is shaping up. 6470 
The Sylvania 2A3 NOS report 6467 
The Citizen Kane syndrome. 6467 
Sylvania 2A3 in a World without Color 6466 
Are NOS and new manufacture comparing oranges to o... 6466 
That all is incorrect in a way…. 6466 
NOS vs new 2A3 tubes 6466 
The identical operation environment? 6466 
Preferred 2A3 operating point 6466 
The sound of the 2A3 however? 6466 
Circuit modification for 2A3 optimization 6465 
How to get max power from 2A3 6465 
2A3 voltages, loads and realized output power 6465 
Optimal operation of 2A3: an experiment 6465 
Tubes, Whole Circuits, Expectations and Sound 6465 
Gain is not power. 6465 
2A3 amplifier modification & Optimization 6465 
Specialized DSET approach 6465 
6C33/2A3 DSET? 6465 
SET usable power and making the most of it 6465 
The 2A3 loading 6465 
DSET solution for EdgarHorn? 6465 
Optimizing the 2A3 6465 
How much to DSET a DSET 6465 
DSET for Titan 6465 
The Best of All Worlds 6465 
Multiamp setup 6464 
Optimizing the (NOS) 2A3... "KM-style"? 6464 
There are many opportunities, it all depends what ... 6464 
Modifying amplifer to optimize NOS 2A3 performance 6464 
Conceptualizing Melquiades DSET is done 6458 
2A3 and 400V supply 6458 
Pudding and the chicken wires 6457 
Another shot at numbers 6457 
How to cook the "uninformed" anode. 6457 
Okay, so this might work.... 6457 
The DHT Milq DSET, the prebuilt draft. 6457 
Looks good, but.... 6456 
2A3 with slightly lover filament voltage? 6456 
Less is more... usually. 6456 
Where to burn gain? how? and where to get beter st... 6455 
Stepping Out 6455 
Said to be good, but 6455 
Gain to lose 6455 
Why nothing is simple with this damn amp! 6455 
Another idea for losing gain 6455 
What's best 6455 
Options, options... 6455 
Actually, it is not so bad. 6455 
Other compromises... 6454 
Cathode vs. fixed with DHT 6453 
Is it glowing yet? 6433 
It is comming.... 6433 
The new MF channel. 6427 
I started to work on the Milq’s DHT Island. 6426 
Innerstage loading vs. OPT loading. 6418 
The intestage loading talk. 6415 
My playback feels like it is broken. 6410 
1 in 50? 6410 
Yes, it was after PP2000 6410 
Die Walküre soldering. 6409 
The post Die Walküre soldering 6408 
Another amp arond YO186 6407 
Gain? 6407 
The Unexpected problem with DHT Milq. 6407 
Simple is good 6406 
Ok, I am moving forward. 6406 
The Milq DSET is up. 6405 
My DH DSET – 2 days later. 6403 
Here is more data to reconcile. 6403 
Hm, that is interesting and unpleasant so far. 6402 
Ok, what do I want? 6402 
Let Go of Some Conceptual "Restrictions"? 6402 
The Milq DH DSET, the further thoughts in progress. 6402 
Crunching Numbers; Shaping Sound 6402 
How about the tweeter? 6401 
Tweeter Efficiency? 6401 
Safe and Sound 6401 
More mystery with tweeter but still on the subject. 6401 
Some clarifications. 6401 
How about that?!!! 6401 
Further considerations: DC-coupling. 6399 
Head Room 6399 
To kill the mandatory 13dB 6398 
DC coupling and killing 13db and driving 6e5p miller and.... 6398 
I do not think that it might be damaging… 6398 
Again with the PS 6398 
AKA J.C. Morrison’s amp but… 6396 
Parallel Universe 6396 
Melquiades HD MF DSET, Draft13. 6394 
Why I let other people build them... 6394 
Ok, it's going to right direction. 6394 
Ok, it looks already very close…. 6393 
The Loftinish-Whitish, well sort of…. 6390 
MF: the pre-final version. 6390 
Loftin-White? 6390 
Did anyone hear the PX4 amplifiers? 6390 
What Could use Improving at This Point? 6390 
The Milq’s MF front-end is done 6386 
Why I Let Other People Build Them, II 6386 
Define really quiet 6385 
Another variable of sound 6385 
Backlash? 6385 
Alternative filament supplies 6385 
I kind of faced a problem with AC 6385 
Going down the DC path 6384 
It is not about the “whole sound” but about “molec... 6384 
Molecular sound 6384 
AC-DC heater supply 6384 
The Tentlabs are $10 worth PS. 6384 
The unexpected resolution of AC vs. DC quandary. 6384 
The devil is less scared than it depicted. 6384 
Hiss or Hum 6384 
AC transformers 6384 
I have seen the Promised Land 6383 
OK, the choke noise is not a problem anymore 6383 
Ok, it is working fine but… 6382 
Divide and Conquer 6382 
The design phase is over. 6381 
The unexpected insanity! 6380 
Loading 6380 
Looking for inspiring ideas for 'universal' loadin... 6380 
A filaments Sherlock Holmes wanted. 6380 
Going the Distance 6380 
Read the f*** manual! 6380 
Agreed. 6380 
I agree 6380 
The filament transformer 6380 
Center-tap and options 6380 
Something like this…. 6380 
Avoiding "Dial-an-Amp" 6380 
The foreplay is going on. 6380 
Split balance 6379 
Further thoughts about my DH filaments 6379 
The Shuguang 2A3 tubes. 6379 
SHuguang 6379 
Going through…. 6378 
The 2.5V noise vs. 4V noise. 6377 
More about Shuguang 2A3C 6377 
Hum vs voltage 6377 
Meow about the tubes… 6377 
To Be a Content Cat 6377 
Completed! 6374 
Tradition 6374 
Absolutely beautiful! 6374 
The 'film' caps in PS 6373 
Science or religion 6373 
Mass Extinction 6373 
Electrolytics, technology and time 6373 
No more questions about PS capacitors. 6373 
Capacitor choices 6373 
Good time. Welcome back. Thanks God. 6372 
The minor day of Quartets. 6372 
Them's the Breaks 6372 
Eventually! 6371 
So Soon? 6371 
DHT MF channel and 6-ch amp: first conclusions 6371 
All Abuzz about Nothing 6370 
The wire for DC-coupling 6370 
The Dirt on DIY Backlash 6370 
DSET vs. the “better tubes”. 6370 
How to test the DH tubes properly? 6369 
Pairing up tubes for SE use 6368 
The DHT live reserve 6367 
Some interestng models 6367 
Eaten alive. 6367 
The tubey déjà vu? 6366 
The new concept of my output transformer. 6362 
The 4V takes a lead. 6358 
Listening the DH and the striped down version of M... 6355 
I kind of slowly learn what I need. 6355 
More HF from a transformer and DHT? 6353 
Since You Don't Need the Gain 6352 
Exiting the design mode? 6352 
Bye-bye the input divider on MF! 6352 
A few steps back and a gaint leap ahead. 6348 
Single-stage vs. DHT amp. 6347 
Setting up the new Playback 6346 
And the winner is… so far 6343 
If you like type 45... 6343 
Type 45... they're not all the same 6343 
Favorite Flavor? 6343 
The 45 times Meow... 6343 
The problem that I see is… 6343 
Running the 45 6343 
The 10Y...and bye bye Newton 6342 
The commentaries about everything. 6342 
Driver tube and biasing 6342 
DHT drivers 6342 
The ideas are worth trying? 6342 
A question about the polishing the things…. 6338 
The Particular Tube, I'm afraid... 6338 
Driving the 45... cathode first 6337 
ST or Globe; old or new... 6337 
Whatever sticks to the wall as an operation point ... 6337 
The attenuating crap in secondary. 6337 
Operating points and cathode current 6337 
The Burgeoning Opportunities! 6337 
Actually it is not so simple. 6337 
Resistors at the front 6336 
A minor alternation of a position 6336 
The era of enlightenment. 6333 
The devil is in the details.... 6333 
Constructing Sound 6333 
A new view on the DHT evaluation. 6332 
The “strange” YO186 6323 
The dead guy’s lessons. 6278 
2S4S and 2A3 6269 
Ho to use the YO186 6262 
YO 186 fundamental flavor 6262 
The YO-YO tube and "fundamentals" channel 6262 
The live without the YO186, again.... 6260 
Not anymore! 6249 
The very good YoYonisation! 6248 
….above and below two very clean channel. 6247 
The DHT and esoteric imaging deformation. 6234 
DHT, YO186, or??? 6234 
I had no idea how ‘different’ it is. 6181 
The Kazitsky Manufacturing and YO104, some history. 6180 
"Absolution and Eternal Refuge." 6177 
Sofia Electric Type 45 Mesh 6167 
The true association of YO186's Sounds. 5929 
All the Best from Burgundy 5929 
Cheesy tubes 5928 
Me and my DHT references… 5819 
Y0-186 in winter. 5722 
Y0-186 sounds like… 5721 
Rethinking the YO186 tube. 5690 
In My Dreams 5690 
Grunt from type 45? A ridicules comment. 5690 
Blame? 5689 
When good is not good enough. 5689 
45s, Drivers, and 45s 5689 
Hm, that was so simple after all! 5688 
How the YO186 was used. 5272 
What is old is new? 5271 
YO186 vs. type 45. 5270 
The YO186 is gone.... :-( 4819 
That sucks. 4819 
YO186 4817 
Hm, what the hell is going on? 4817 
I do not think that anybody but me would like YO186 4817 
A hallucination? 4814 
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