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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 6531 
One-stage Milq++ and the DHT's alleged tone 6530 
DHT Milq? 6530 
The DHT journey. 6530 
DHT tone 6530 
Well, why not? 6529 
Holding the Fort 6529 
My DHT experiment: Preface 6529 
Input tube and DC heaters 6528 
Reimyo Pat 777 6528 
My DHT experiment: Observations 6524 
DHT or 300B? 6524 
300B 6524 
Talking, perception and the grounds for objectively 6524 
The Wine Via the Wine Glass 6523 
Hence the confusion 6523 
My DHT experiment: some conclusions. 6523 
Reality Reconstruction is not a functionality. 6523 
My experience with DHTs 6523 
Pigmented coloration? 6523 
Dht-dht 6523 
Dynamic viscosity? 6523 
The Pallette preamp... 6523 
If one DHT is good, two must be better? 6523 
"soul" of tubes 6523 
There is a difference... 6523 
Vibration injection? 6523 
Homework # 4334 6523 
The 01A-71A-10Y-45 chain 6523 
Old valves have more soul! 6522 
Was it soul or soil? 6522 
It was just a heading 6522 
Adjustable color: TIMBRE LOCK? 6522 
Neutral or neutral/uncoloured? 6522 
..are lacking in power, dynamics and bandwidth. 6522 
Timbre-Lock. Not quite ready for prime time. 6522 
Injection of analog dither? 6522 
Subliminal signal 6522 
The idea of analog randomanization. 6522 
Okay, what Avicena Power Generator 6522 
I hope you will be hearing about it. 6521 
Avicenna = Arabian 6521 
Persian, not Arab 6521 
The “second solution” - a major disappointment 6521 
More words to describe "sux" please 6521 
Revolution 6521 
The non-melodramatic DHT? 6521 
One-stage DHTs 6520 
One other thing 6520 
One stage 6520 
Brewing, thinking and heating 6520 
Physical characteristics of electronic devices 6520 
I see the things differently. 6520 
Don't waste time being "creative" 6520 
The audiophile attitude 6520 
The where and why of design choices 6520 
Blah blah blah 6520 
Laconic Clarity vs. Comfort vs. Nostalgia 6520 
Do I need to be hissing? 6520 
...associated with lack of neutrality and colorati... 6520 
John Broskie's Partial feedback amplifier 6520 
Randomness vs. freedom and the Homework # 4334 6519 
What is randomness? 6519 
Those least three possibilities… 6519 
Randomness and Music's Prerogative 6519 
It works, … sort of. The revolution is canceled. 6519 
Thorsten Loesch’s article about DHT SETs 6517 
A Beautiful Mind 6516 
Some summary and conclusions from the first phase. 6514 
Second phase: revising requirement for my DHT objectives. 6499 
Tubes for your DHT amp 6499 
Abandoning Milq? 6499 
Will see how it goes.... 6499 
Single-stage Milq vs. Sun Audio VT-2A3 6497 
Topology and 2A3? 6497 
6SN7-2A3 amps? 6497 
Type Casting 6497 
Sun Audio SV-2A3 6497 
6sn7-2a3 6497 
Topology vs parts 6497 
For a DHT amp, you are listening to the power supply 6497 
The vintage tubes syndrome. 6497 
Parts Frenzy 6497 
Too many new sounds 6497 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6496 
New tubes 6495 
Milq bias vs. batery bias 6495 
The batteries are a tricky thing. 6495 
Swimming the ocean at night? 6495 
New 2A3 6495 
To kill of do not kill the capacitor. 6494 
The JJ Electronic amp. 6493 
JJ 2A3 and amp 6493 
Czech tubes 6491 
Single plated vs Double plated? 6491 
Mono plate 2A3 tubes 6491 
I suggested once VT52 tube 6490 
The 800R vs. 1800R vs. 5500R 6490 
YO-186 as the output tube. 6487 
Here she is. 6486 
Some talks about the new production tubes 6482 
New 2A3 tubes 6482 
Some thoughts about one-IHT vs. multiple-DHT 6482 
The Sun Audio with 6E5P 6481 
Multistage DHT circuits 6480 
Wrong tube or wrong topology – here is the question. 6479 
Emission Labs 2A3 6479 
Some comment and questions about then 2A3 talks. 6479 
Which Chinese 2A3? 6479 
OK, for a first time I like the San Audio Kit. 6479 
The YO186 Strip Show 6479 
More on the 2A3 comparisons 6478 
It will be interesting…. 6478 
OPT impedence 6478 
More about the Plate Loading 6478 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6473 
2A3 data 6473 
The New 2A3 tubes 6473 
How many stages I need for 110dB sensitivity, smal... 6473 
How many stages and why... and who makes that 45 o... 6472 
Everything about everything. 6472 
Some very good points... and... possibly more logi... 6472 
Options, options, options.... 6472 
I think we agree overall 6472 
An IDHT with more gain? 6471 
You don't ask for much now, eh? 6471 
2A3 tube impressions 6466 
Interesting analogy 6466 
NOS 2A3 tubes versus new tubes 6466 
Hmmm, let me try this one again... 6466 
Sylvania 2A3 identification 6466 
A picture is worth a thousand micromhos? 6466 
I have more interest in the period tubes 6466 
Why NOS tubes? 6465 
The Holly Ignorance 6465 
Tube tasting 6465 
The cathodes’ flatulence? 6465 
Make mine thoriated please 6465 
Any Germans out there? 6465 
6E5P VS 6E6P 6465 
Vibrations? What do you with them? 6465 
Vibration in tubes and sounds 6465 
UX4 vs UX4ruskie 6464 
Ringing the tubes? I do not know how about that. 6464 
Tube sound and vibration 6464 
The thoughts collection about YO186? 6458 
The lights look green for the YO tube 6457 
"Melquiades" with YO-186. Something like... 6457 
My version of RE-604 and PX4 6456 
The YO186 tube sockets. 6456 
B4/B5 British made 6455 
The YO186’s sockets and prices 6455 
DHT 2A3 amplifier rectification 6454 
My attitude toward tube rectification. 6454 
Tu-be or not Tu-be, seems Tu-be the question. 6453 
It looks like DHT DSET is shaping up. 6452 
The Sylvania 2A3 NOS report 6449 
The Citizen Kane syndrome. 6449 
Sylvania 2A3 in a World without Color 6448 
Are NOS and new manufacture comparing oranges to o... 6448 
That all is incorrect in a way…. 6448 
NOS vs new 2A3 tubes 6448 
The identical operation environment? 6448 
Preferred 2A3 operating point 6448 
The sound of the 2A3 however? 6448 
Circuit modification for 2A3 optimization 6447 
How to get max power from 2A3 6447 
2A3 voltages, loads and realized output power 6447 
Optimal operation of 2A3: an experiment 6447 
Tubes, Whole Circuits, Expectations and Sound 6447 
Gain is not power. 6447 
2A3 amplifier modification & Optimization 6447 
Specialized DSET approach 6447 
6C33/2A3 DSET? 6447 
SET usable power and making the most of it 6447 
The 2A3 loading 6447 
DSET solution for EdgarHorn? 6447 
Optimizing the 2A3 6447 
How much to DSET a DSET 6447 
DSET for Titan 6447 
The Best of All Worlds 6447 
Multiamp setup 6446 
Optimizing the (NOS) 2A3... "KM-style"? 6446 
There are many opportunities, it all depends what ... 6446 
Modifying amplifer to optimize NOS 2A3 performance 6446 
Conceptualizing Melquiades DSET is done 6440 
2A3 and 400V supply 6440 
Pudding and the chicken wires 6439 
Another shot at numbers 6439 
How to cook the "uninformed" anode. 6439 
Okay, so this might work.... 6439 
The DHT Milq DSET, the prebuilt draft. 6439 
Looks good, but.... 6438 
2A3 with slightly lover filament voltage? 6438 
Less is more... usually. 6438 
Where to burn gain? how? and where to get beter st... 6437 
Stepping Out 6437 
Said to be good, but 6437 
Gain to lose 6437 
Why nothing is simple with this damn amp! 6437 
Another idea for losing gain 6437 
What's best 6437 
Options, options... 6437 
Actually, it is not so bad. 6437 
Other compromises... 6436 
Cathode vs. fixed with DHT 6435 
Is it glowing yet? 6415 
It is comming.... 6415 
The new MF channel. 6409 
I started to work on the Milq’s DHT Island. 6408 
Innerstage loading vs. OPT loading. 6400 
The intestage loading talk. 6397 
My playback feels like it is broken. 6392 
1 in 50? 6392 
Yes, it was after PP2000 6392 
Die Walküre soldering. 6391 
The post Die Walküre soldering 6390 
Another amp arond YO186 6389 
Gain? 6389 
The Unexpected problem with DHT Milq. 6389 
Simple is good 6388 
Ok, I am moving forward. 6388 
The Milq DSET is up. 6387 
My DH DSET – 2 days later. 6385 
Here is more data to reconcile. 6385 
Hm, that is interesting and unpleasant so far. 6384 
Ok, what do I want? 6384 
Let Go of Some Conceptual "Restrictions"? 6384 
The Milq DH DSET, the further thoughts in progress. 6384 
Crunching Numbers; Shaping Sound 6384 
How about the tweeter? 6383 
Tweeter Efficiency? 6383 
Safe and Sound 6383 
More mystery with tweeter but still on the subject. 6383 
Some clarifications. 6383 
How about that?!!! 6383 
Further considerations: DC-coupling. 6381 
Head Room 6381 
To kill the mandatory 13dB 6380 
DC coupling and killing 13db and driving 6e5p miller and.... 6380 
I do not think that it might be damaging… 6380 
Again with the PS 6380 
AKA J.C. Morrison’s amp but… 6378 
Parallel Universe 6378 
Melquiades HD MF DSET, Draft13. 6376 
Why I let other people build them... 6376 
Ok, it's going to right direction. 6376 
Ok, it looks already very close…. 6375 
The Loftinish-Whitish, well sort of…. 6372 
MF: the pre-final version. 6372 
Loftin-White? 6372 
Did anyone hear the PX4 amplifiers? 6372 
What Could use Improving at This Point? 6372 
The Milq’s MF front-end is done 6368 
Why I Let Other People Build Them, II 6368 
Define really quiet 6367 
Another variable of sound 6367 
Backlash? 6367 
Alternative filament supplies 6367 
I kind of faced a problem with AC 6367 
Going down the DC path 6366 
It is not about the “whole sound” but about “molec... 6366 
Molecular sound 6366 
AC-DC heater supply 6366 
The Tentlabs are $10 worth PS. 6366 
The unexpected resolution of AC vs. DC quandary. 6366 
The devil is less scared than it depicted. 6366 
Hiss or Hum 6366 
AC transformers 6366 
I have seen the Promised Land 6365 
OK, the choke noise is not a problem anymore 6365 
Ok, it is working fine but… 6364 
Divide and Conquer 6364 
The design phase is over. 6363 
The unexpected insanity! 6362 
Loading 6362 
Looking for inspiring ideas for 'universal' loadin... 6362 
A filaments Sherlock Holmes wanted. 6362 
Going the Distance 6362 
Read the f*** manual! 6362 
Agreed. 6362 
I agree 6362 
The filament transformer 6362 
Center-tap and options 6362 
Something like this…. 6362 
Avoiding "Dial-an-Amp" 6362 
The foreplay is going on. 6362 
Split balance 6361 
Further thoughts about my DH filaments 6361 
The Shuguang 2A3 tubes. 6361 
SHuguang 6361 
Going through…. 6360 
The 2.5V noise vs. 4V noise. 6359 
More about Shuguang 2A3C 6359 
Hum vs voltage 6359 
Meow about the tubes… 6359 
To Be a Content Cat 6359 
Completed! 6356 
Tradition 6356 
Absolutely beautiful! 6356 
The 'film' caps in PS 6355 
Science or religion 6355 
Mass Extinction 6355 
Electrolytics, technology and time 6355 
No more questions about PS capacitors. 6355 
Capacitor choices 6355 
Good time. Welcome back. Thanks God. 6354 
The minor day of Quartets. 6354 
Them's the Breaks 6354 
Eventually! 6353 
So Soon? 6353 
DHT MF channel and 6-ch amp: first conclusions 6353 
All Abuzz about Nothing 6352 
The wire for DC-coupling 6352 
The Dirt on DIY Backlash 6352 
DSET vs. the “better tubes”. 6352 
How to test the DH tubes properly? 6351 
Pairing up tubes for SE use 6350 
The DHT live reserve 6349 
Some interestng models 6349 
Eaten alive. 6349 
The tubey déjà vu? 6348 
The new concept of my output transformer. 6344 
The 4V takes a lead. 6340 
Listening the DH and the striped down version of M... 6337 
I kind of slowly learn what I need. 6337 
More HF from a transformer and DHT? 6335 
Since You Don't Need the Gain 6334 
Exiting the design mode? 6334 
Bye-bye the input divider on MF! 6334 
A few steps back and a gaint leap ahead. 6330 
Single-stage vs. DHT amp. 6329 
Setting up the new Playback 6328 
And the winner is… so far 6325 
If you like type 45... 6325 
Type 45... they're not all the same 6325 
Favorite Flavor? 6325 
The 45 times Meow... 6325 
The problem that I see is… 6325 
Running the 45 6325 
The 10Y...and bye bye Newton 6324 
The commentaries about everything. 6324 
Driver tube and biasing 6324 
DHT drivers 6324 
The ideas are worth trying? 6324 
A question about the polishing the things…. 6320 
The Particular Tube, I'm afraid... 6320 
Driving the 45... cathode first 6319 
ST or Globe; old or new... 6319 
Whatever sticks to the wall as an operation point ... 6319 
The attenuating crap in secondary. 6319 
Operating points and cathode current 6319 
The Burgeoning Opportunities! 6319 
Actually it is not so simple. 6319 
Resistors at the front 6318 
A minor alternation of a position 6318 
The era of enlightenment. 6315 
The devil is in the details.... 6315 
Constructing Sound 6315 
A new view on the DHT evaluation. 6314 
The “strange” YO186 6305 
The dead guy’s lessons. 6260 
2S4S and 2A3 6251 
Ho to use the YO186 6244 
YO 186 fundamental flavor 6244 
The YO-YO tube and "fundamentals" channel 6244 
The live without the YO186, again.... 6242 
Not anymore! 6231 
The very good YoYonisation! 6230 
….above and below two very clean channel. 6229 
The DHT and esoteric imaging deformation. 6216 
DHT, YO186, or??? 6216 
I had no idea how ‘different’ it is. 6163 
The Kazitsky Manufacturing and YO104, some history. 6162 
"Absolution and Eternal Refuge." 6159 
Sofia Electric Type 45 Mesh 6149 
The true association of YO186's Sounds. 5911 
All the Best from Burgundy 5911 
Cheesy tubes 5910 
Me and my DHT references… 5801 
Y0-186 in winter. 5704 
Y0-186 sounds like… 5703 
Rethinking the YO186 tube. 5672 
In My Dreams 5672 
Grunt from type 45? A ridicules comment. 5672 
Blame? 5671 
When good is not good enough. 5671 
45s, Drivers, and 45s 5671 
Hm, that was so simple after all! 5670 
How the YO186 was used. 5254 
What is old is new? 5253 
YO186 vs. type 45. 5252 
The YO186 is gone.... :-( 4801 
That sucks. 4801 
YO186 4799 
Hm, what the hell is going on? 4799 
I do not think that anybody but me would like YO186 4799 
A hallucination? 4796 
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