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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 6519 
One-stage Milq++ and the DHT's alleged tone 6518 
DHT Milq? 6518 
The DHT journey. 6518 
DHT tone 6518 
Well, why not? 6517 
Holding the Fort 6517 
My DHT experiment: Preface 6517 
Input tube and DC heaters 6516 
Reimyo Pat 777 6516 
My DHT experiment: Observations 6512 
DHT or 300B? 6512 
300B 6512 
Talking, perception and the grounds for objectively 6512 
The Wine Via the Wine Glass 6511 
Hence the confusion 6511 
My DHT experiment: some conclusions. 6511 
Reality Reconstruction is not a functionality. 6511 
My experience with DHTs 6511 
Pigmented coloration? 6511 
Dht-dht 6511 
Dynamic viscosity? 6511 
The Pallette preamp... 6511 
If one DHT is good, two must be better? 6511 
"soul" of tubes 6511 
There is a difference... 6511 
Vibration injection? 6511 
Homework # 4334 6511 
The 01A-71A-10Y-45 chain 6511 
Old valves have more soul! 6510 
Was it soul or soil? 6510 
It was just a heading 6510 
Adjustable color: TIMBRE LOCK? 6510 
Neutral or neutral/uncoloured? 6510 
..are lacking in power, dynamics and bandwidth. 6510 
Timbre-Lock. Not quite ready for prime time. 6510 
Injection of analog dither? 6510 
Subliminal signal 6510 
The idea of analog randomanization. 6510 
Okay, what Avicena Power Generator 6510 
I hope you will be hearing about it. 6509 
Avicenna = Arabian 6509 
Persian, not Arab 6509 
The “second solution” - a major disappointment 6509 
More words to describe "sux" please 6509 
Revolution 6509 
The non-melodramatic DHT? 6509 
One-stage DHTs 6508 
One other thing 6508 
One stage 6508 
Brewing, thinking and heating 6508 
Physical characteristics of electronic devices 6508 
I see the things differently. 6508 
Don't waste time being "creative" 6508 
The audiophile attitude 6508 
The where and why of design choices 6508 
Blah blah blah 6508 
Laconic Clarity vs. Comfort vs. Nostalgia 6508 
Do I need to be hissing? 6508 
...associated with lack of neutrality and colorati... 6508 
John Broskie's Partial feedback amplifier 6508 
Randomness vs. freedom and the Homework # 4334 6507 
What is randomness? 6507 
Those least three possibilities… 6507 
Randomness and Music's Prerogative 6507 
It works, … sort of. The revolution is canceled. 6507 
Thorsten Loesch’s article about DHT SETs 6505 
A Beautiful Mind 6504 
Some summary and conclusions from the first phase. 6502 
Second phase: revising requirement for my DHT objectives. 6487 
Tubes for your DHT amp 6487 
Abandoning Milq? 6487 
Will see how it goes.... 6487 
Single-stage Milq vs. Sun Audio VT-2A3 6485 
Topology and 2A3? 6485 
6SN7-2A3 amps? 6485 
Type Casting 6485 
Sun Audio SV-2A3 6485 
6sn7-2a3 6485 
Topology vs parts 6485 
For a DHT amp, you are listening to the power supply 6485 
The vintage tubes syndrome. 6485 
Parts Frenzy 6485 
Too many new sounds 6485 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6484 
New tubes 6483 
Milq bias vs. batery bias 6483 
The batteries are a tricky thing. 6483 
Swimming the ocean at night? 6483 
New 2A3 6483 
To kill of do not kill the capacitor. 6482 
The JJ Electronic amp. 6481 
JJ 2A3 and amp 6481 
Czech tubes 6479 
Single plated vs Double plated? 6479 
Mono plate 2A3 tubes 6479 
I suggested once VT52 tube 6478 
The 800R vs. 1800R vs. 5500R 6478 
YO-186 as the output tube. 6475 
Here she is. 6474 
Some talks about the new production tubes 6470 
New 2A3 tubes 6470 
Some thoughts about one-IHT vs. multiple-DHT 6470 
The Sun Audio with 6E5P 6469 
Multistage DHT circuits 6468 
Wrong tube or wrong topology – here is the question. 6467 
Emission Labs 2A3 6467 
Some comment and questions about then 2A3 talks. 6467 
Which Chinese 2A3? 6467 
OK, for a first time I like the San Audio Kit. 6467 
The YO186 Strip Show 6467 
More on the 2A3 comparisons 6466 
It will be interesting…. 6466 
OPT impedence 6466 
More about the Plate Loading 6466 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6461 
2A3 data 6461 
The New 2A3 tubes 6461 
How many stages I need for 110dB sensitivity, smal... 6461 
How many stages and why... and who makes that 45 o... 6460 
Everything about everything. 6460 
Some very good points... and... possibly more logi... 6460 
Options, options, options.... 6460 
I think we agree overall 6460 
An IDHT with more gain? 6459 
You don't ask for much now, eh? 6459 
2A3 tube impressions 6454 
Interesting analogy 6454 
NOS 2A3 tubes versus new tubes 6454 
Hmmm, let me try this one again... 6454 
Sylvania 2A3 identification 6454 
A picture is worth a thousand micromhos? 6454 
I have more interest in the period tubes 6454 
Why NOS tubes? 6453 
The Holly Ignorance 6453 
Tube tasting 6453 
The cathodes’ flatulence? 6453 
Make mine thoriated please 6453 
Any Germans out there? 6453 
6E5P VS 6E6P 6453 
Vibrations? What do you with them? 6453 
Vibration in tubes and sounds 6453 
UX4 vs UX4ruskie 6452 
Ringing the tubes? I do not know how about that. 6452 
Tube sound and vibration 6452 
The thoughts collection about YO186? 6446 
The lights look green for the YO tube 6445 
"Melquiades" with YO-186. Something like... 6445 
My version of RE-604 and PX4 6444 
The YO186 tube sockets. 6444 
B4/B5 British made 6443 
The YO186’s sockets and prices 6443 
DHT 2A3 amplifier rectification 6442 
My attitude toward tube rectification. 6442 
Tu-be or not Tu-be, seems Tu-be the question. 6441 
It looks like DHT DSET is shaping up. 6440 
The Sylvania 2A3 NOS report 6437 
The Citizen Kane syndrome. 6437 
Sylvania 2A3 in a World without Color 6436 
Are NOS and new manufacture comparing oranges to o... 6436 
That all is incorrect in a way…. 6436 
NOS vs new 2A3 tubes 6436 
The identical operation environment? 6436 
Preferred 2A3 operating point 6436 
The sound of the 2A3 however? 6436 
Circuit modification for 2A3 optimization 6435 
How to get max power from 2A3 6435 
2A3 voltages, loads and realized output power 6435 
Optimal operation of 2A3: an experiment 6435 
Tubes, Whole Circuits, Expectations and Sound 6435 
Gain is not power. 6435 
2A3 amplifier modification & Optimization 6435 
Specialized DSET approach 6435 
6C33/2A3 DSET? 6435 
SET usable power and making the most of it 6435 
The 2A3 loading 6435 
DSET solution for EdgarHorn? 6435 
Optimizing the 2A3 6435 
How much to DSET a DSET 6435 
DSET for Titan 6435 
The Best of All Worlds 6435 
Multiamp setup 6434 
Optimizing the (NOS) 2A3... "KM-style"? 6434 
There are many opportunities, it all depends what ... 6434 
Modifying amplifer to optimize NOS 2A3 performance 6434 
Conceptualizing Melquiades DSET is done 6428 
2A3 and 400V supply 6428 
Pudding and the chicken wires 6427 
Another shot at numbers 6427 
How to cook the "uninformed" anode. 6427 
Okay, so this might work.... 6427 
The DHT Milq DSET, the prebuilt draft. 6427 
Looks good, but.... 6426 
2A3 with slightly lover filament voltage? 6426 
Less is more... usually. 6426 
Where to burn gain? how? and where to get beter st... 6425 
Stepping Out 6425 
Said to be good, but 6425 
Gain to lose 6425 
Why nothing is simple with this damn amp! 6425 
Another idea for losing gain 6425 
What's best 6425 
Options, options... 6425 
Actually, it is not so bad. 6425 
Other compromises... 6424 
Cathode vs. fixed with DHT 6423 
Is it glowing yet? 6403 
It is comming.... 6403 
The new MF channel. 6397 
I started to work on the Milq’s DHT Island. 6396 
Innerstage loading vs. OPT loading. 6388 
The intestage loading talk. 6385 
My playback feels like it is broken. 6380 
1 in 50? 6380 
Yes, it was after PP2000 6380 
Die Walküre soldering. 6379 
The post Die Walküre soldering 6378 
Another amp arond YO186 6377 
Gain? 6377 
The Unexpected problem with DHT Milq. 6377 
Simple is good 6376 
Ok, I am moving forward. 6376 
The Milq DSET is up. 6375 
My DH DSET – 2 days later. 6373 
Here is more data to reconcile. 6373 
Hm, that is interesting and unpleasant so far. 6372 
Ok, what do I want? 6372 
Let Go of Some Conceptual "Restrictions"? 6372 
The Milq DH DSET, the further thoughts in progress. 6372 
Crunching Numbers; Shaping Sound 6372 
How about the tweeter? 6371 
Tweeter Efficiency? 6371 
Safe and Sound 6371 
More mystery with tweeter but still on the subject. 6371 
Some clarifications. 6371 
How about that?!!! 6371 
Further considerations: DC-coupling. 6369 
Head Room 6369 
To kill the mandatory 13dB 6368 
DC coupling and killing 13db and driving 6e5p miller and.... 6368 
I do not think that it might be damaging… 6368 
Again with the PS 6368 
AKA J.C. Morrison’s amp but… 6366 
Parallel Universe 6366 
Melquiades HD MF DSET, Draft13. 6364 
Why I let other people build them... 6364 
Ok, it's going to right direction. 6364 
Ok, it looks already very close…. 6363 
The Loftinish-Whitish, well sort of…. 6360 
MF: the pre-final version. 6360 
Loftin-White? 6360 
Did anyone hear the PX4 amplifiers? 6360 
What Could use Improving at This Point? 6360 
The Milq’s MF front-end is done 6356 
Why I Let Other People Build Them, II 6356 
Define really quiet 6355 
Another variable of sound 6355 
Backlash? 6355 
Alternative filament supplies 6355 
I kind of faced a problem with AC 6355 
Going down the DC path 6354 
It is not about the “whole sound” but about “molec... 6354 
Molecular sound 6354 
AC-DC heater supply 6354 
The Tentlabs are $10 worth PS. 6354 
The unexpected resolution of AC vs. DC quandary. 6354 
The devil is less scared than it depicted. 6354 
Hiss or Hum 6354 
AC transformers 6354 
I have seen the Promised Land 6353 
OK, the choke noise is not a problem anymore 6353 
Ok, it is working fine but… 6352 
Divide and Conquer 6352 
The design phase is over. 6351 
The unexpected insanity! 6350 
Loading 6350 
Looking for inspiring ideas for 'universal' loadin... 6350 
A filaments Sherlock Holmes wanted. 6350 
Going the Distance 6350 
Read the f*** manual! 6350 
Agreed. 6350 
I agree 6350 
The filament transformer 6350 
Center-tap and options 6350 
Something like this…. 6350 
Avoiding "Dial-an-Amp" 6350 
The foreplay is going on. 6350 
Split balance 6349 
Further thoughts about my DH filaments 6349 
The Shuguang 2A3 tubes. 6349 
SHuguang 6349 
Going through…. 6348 
The 2.5V noise vs. 4V noise. 6347 
More about Shuguang 2A3C 6347 
Hum vs voltage 6347 
Meow about the tubes… 6347 
To Be a Content Cat 6347 
Completed! 6344 
Tradition 6344 
Absolutely beautiful! 6344 
The 'film' caps in PS 6343 
Science or religion 6343 
Mass Extinction 6343 
Electrolytics, technology and time 6343 
No more questions about PS capacitors. 6343 
Capacitor choices 6343 
Good time. Welcome back. Thanks God. 6342 
The minor day of Quartets. 6342 
Them's the Breaks 6342 
Eventually! 6341 
So Soon? 6341 
DHT MF channel and 6-ch amp: first conclusions 6341 
All Abuzz about Nothing 6340 
The wire for DC-coupling 6340 
The Dirt on DIY Backlash 6340 
DSET vs. the “better tubes”. 6340 
How to test the DH tubes properly? 6339 
Pairing up tubes for SE use 6338 
The DHT live reserve 6337 
Some interestng models 6337 
Eaten alive. 6337 
The tubey déjà vu? 6336 
The new concept of my output transformer. 6332 
The 4V takes a lead. 6328 
Listening the DH and the striped down version of M... 6325 
I kind of slowly learn what I need. 6325 
More HF from a transformer and DHT? 6323 
Since You Don't Need the Gain 6322 
Exiting the design mode? 6322 
Bye-bye the input divider on MF! 6322 
A few steps back and a gaint leap ahead. 6318 
Single-stage vs. DHT amp. 6317 
Setting up the new Playback 6316 
And the winner is… so far 6313 
If you like type 45... 6313 
Type 45... they're not all the same 6313 
Favorite Flavor? 6313 
The 45 times Meow... 6313 
The problem that I see is… 6313 
Running the 45 6313 
The 10Y...and bye bye Newton 6312 
The commentaries about everything. 6312 
Driver tube and biasing 6312 
DHT drivers 6312 
The ideas are worth trying? 6312 
A question about the polishing the things…. 6308 
The Particular Tube, I'm afraid... 6308 
Driving the 45... cathode first 6307 
ST or Globe; old or new... 6307 
Whatever sticks to the wall as an operation point ... 6307 
The attenuating crap in secondary. 6307 
Operating points and cathode current 6307 
The Burgeoning Opportunities! 6307 
Actually it is not so simple. 6307 
Resistors at the front 6306 
A minor alternation of a position 6306 
The era of enlightenment. 6303 
The devil is in the details.... 6303 
Constructing Sound 6303 
A new view on the DHT evaluation. 6302 
The “strange” YO186 6293 
The dead guy’s lessons. 6248 
2S4S and 2A3 6239 
Ho to use the YO186 6232 
YO 186 fundamental flavor 6232 
The YO-YO tube and "fundamentals" channel 6232 
The live without the YO186, again.... 6230 
Not anymore! 6219 
The very good YoYonisation! 6218 
….above and below two very clean channel. 6217 
The DHT and esoteric imaging deformation. 6204 
DHT, YO186, or??? 6204 
I had no idea how ‘different’ it is. 6151 
The Kazitsky Manufacturing and YO104, some history. 6150 
"Absolution and Eternal Refuge." 6147 
Sofia Electric Type 45 Mesh 6137 
The true association of YO186's Sounds. 5899 
All the Best from Burgundy 5899 
Cheesy tubes 5898 
Me and my DHT references… 5789 
Y0-186 in winter. 5692 
Y0-186 sounds like… 5691 
Rethinking the YO186 tube. 5660 
In My Dreams 5660 
Grunt from type 45? A ridicules comment. 5660 
Blame? 5659 
When good is not good enough. 5659 
45s, Drivers, and 45s 5659 
Hm, that was so simple after all! 5658 
How the YO186 was used. 5242 
What is old is new? 5241 
YO186 vs. type 45. 5240 
The YO186 is gone.... :-( 4789 
That sucks. 4789 
YO186 4787 
Hm, what the hell is going on? 4787 
I do not think that anybody but me would like YO186 4787 
A hallucination? 4784 
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