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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 6496 
One-stage Milq++ and the DHT's alleged tone 6495 
DHT Milq? 6495 
The DHT journey. 6495 
DHT tone 6495 
Well, why not? 6494 
Holding the Fort 6494 
My DHT experiment: Preface 6494 
Input tube and DC heaters 6493 
Reimyo Pat 777 6493 
My DHT experiment: Observations 6489 
DHT or 300B? 6489 
300B 6489 
Talking, perception and the grounds for objectively 6489 
The Wine Via the Wine Glass 6488 
Hence the confusion 6488 
My DHT experiment: some conclusions. 6488 
Reality Reconstruction is not a functionality. 6488 
My experience with DHTs 6488 
Pigmented coloration? 6488 
Dht-dht 6488 
Dynamic viscosity? 6488 
The Pallette preamp... 6488 
If one DHT is good, two must be better? 6488 
"soul" of tubes 6488 
There is a difference... 6488 
Vibration injection? 6488 
Homework # 4334 6488 
The 01A-71A-10Y-45 chain 6488 
Old valves have more soul! 6487 
Was it soul or soil? 6487 
It was just a heading 6487 
Adjustable color: TIMBRE LOCK? 6487 
Neutral or neutral/uncoloured? 6487 
..are lacking in power, dynamics and bandwidth. 6487 
Timbre-Lock. Not quite ready for prime time. 6487 
Injection of analog dither? 6487 
Subliminal signal 6487 
The idea of analog randomanization. 6487 
Okay, what Avicena Power Generator 6487 
I hope you will be hearing about it. 6486 
Avicenna = Arabian 6486 
Persian, not Arab 6486 
The “second solution” - a major disappointment 6486 
More words to describe "sux" please 6486 
Revolution 6486 
The non-melodramatic DHT? 6486 
One-stage DHTs 6485 
One other thing 6485 
One stage 6485 
Brewing, thinking and heating 6485 
Physical characteristics of electronic devices 6485 
I see the things differently. 6485 
Don't waste time being "creative" 6485 
The audiophile attitude 6485 
The where and why of design choices 6485 
Blah blah blah 6485 
Laconic Clarity vs. Comfort vs. Nostalgia 6485 
Do I need to be hissing? 6485 
...associated with lack of neutrality and colorati... 6485 
John Broskie's Partial feedback amplifier 6485 
Randomness vs. freedom and the Homework # 4334 6484 
What is randomness? 6484 
Those least three possibilities… 6484 
Randomness and Music's Prerogative 6484 
It works, … sort of. The revolution is canceled. 6484 
Thorsten Loesch’s article about DHT SETs 6482 
A Beautiful Mind 6481 
Some summary and conclusions from the first phase. 6479 
Second phase: revising requirement for my DHT objectives. 6464 
Tubes for your DHT amp 6464 
Abandoning Milq? 6464 
Will see how it goes.... 6464 
Single-stage Milq vs. Sun Audio VT-2A3 6462 
Topology and 2A3? 6462 
6SN7-2A3 amps? 6462 
Type Casting 6462 
Sun Audio SV-2A3 6462 
6sn7-2a3 6462 
Topology vs parts 6462 
For a DHT amp, you are listening to the power supply 6462 
The vintage tubes syndrome. 6462 
Parts Frenzy 6462 
Too many new sounds 6462 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6461 
New tubes 6460 
Milq bias vs. batery bias 6460 
The batteries are a tricky thing. 6460 
Swimming the ocean at night? 6460 
New 2A3 6460 
To kill of do not kill the capacitor. 6459 
The JJ Electronic amp. 6458 
JJ 2A3 and amp 6458 
Czech tubes 6456 
Single plated vs Double plated? 6456 
Mono plate 2A3 tubes 6456 
I suggested once VT52 tube 6455 
The 800R vs. 1800R vs. 5500R 6455 
YO-186 as the output tube. 6452 
Here she is. 6451 
Some talks about the new production tubes 6447 
New 2A3 tubes 6447 
Some thoughts about one-IHT vs. multiple-DHT 6447 
The Sun Audio with 6E5P 6446 
Multistage DHT circuits 6445 
Wrong tube or wrong topology – here is the question. 6444 
Emission Labs 2A3 6444 
Some comment and questions about then 2A3 talks. 6444 
Which Chinese 2A3? 6444 
OK, for a first time I like the San Audio Kit. 6444 
The YO186 Strip Show 6444 
More on the 2A3 comparisons 6443 
It will be interesting…. 6443 
OPT impedence 6443 
More about the Plate Loading 6443 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6438 
2A3 data 6438 
The New 2A3 tubes 6438 
How many stages I need for 110dB sensitivity, smal... 6438 
How many stages and why... and who makes that 45 o... 6437 
Everything about everything. 6437 
Some very good points... and... possibly more logi... 6437 
Options, options, options.... 6437 
I think we agree overall 6437 
An IDHT with more gain? 6436 
You don't ask for much now, eh? 6436 
2A3 tube impressions 6431 
Interesting analogy 6431 
NOS 2A3 tubes versus new tubes 6431 
Hmmm, let me try this one again... 6431 
Sylvania 2A3 identification 6431 
A picture is worth a thousand micromhos? 6431 
I have more interest in the period tubes 6431 
Why NOS tubes? 6430 
The Holly Ignorance 6430 
Tube tasting 6430 
The cathodes’ flatulence? 6430 
Make mine thoriated please 6430 
Any Germans out there? 6430 
6E5P VS 6E6P 6430 
Vibrations? What do you with them? 6430 
Vibration in tubes and sounds 6430 
UX4 vs UX4ruskie 6429 
Ringing the tubes? I do not know how about that. 6429 
Tube sound and vibration 6429 
The thoughts collection about YO186? 6423 
The lights look green for the YO tube 6422 
"Melquiades" with YO-186. Something like... 6422 
My version of RE-604 and PX4 6421 
The YO186 tube sockets. 6421 
B4/B5 British made 6420 
The YO186’s sockets and prices 6420 
DHT 2A3 amplifier rectification 6419 
My attitude toward tube rectification. 6419 
Tu-be or not Tu-be, seems Tu-be the question. 6418 
It looks like DHT DSET is shaping up. 6417 
The Sylvania 2A3 NOS report 6414 
The Citizen Kane syndrome. 6414 
Sylvania 2A3 in a World without Color 6413 
Are NOS and new manufacture comparing oranges to o... 6413 
That all is incorrect in a way…. 6413 
NOS vs new 2A3 tubes 6413 
The identical operation environment? 6413 
Preferred 2A3 operating point 6413 
The sound of the 2A3 however? 6413 
Circuit modification for 2A3 optimization 6412 
How to get max power from 2A3 6412 
2A3 voltages, loads and realized output power 6412 
Optimal operation of 2A3: an experiment 6412 
Tubes, Whole Circuits, Expectations and Sound 6412 
Gain is not power. 6412 
2A3 amplifier modification & Optimization 6412 
Specialized DSET approach 6412 
6C33/2A3 DSET? 6412 
SET usable power and making the most of it 6412 
The 2A3 loading 6412 
DSET solution for EdgarHorn? 6412 
Optimizing the 2A3 6412 
How much to DSET a DSET 6412 
DSET for Titan 6412 
The Best of All Worlds 6412 
Multiamp setup 6411 
Optimizing the (NOS) 2A3... "KM-style"? 6411 
There are many opportunities, it all depends what ... 6411 
Modifying amplifer to optimize NOS 2A3 performance 6411 
Conceptualizing Melquiades DSET is done 6405 
2A3 and 400V supply 6405 
Pudding and the chicken wires 6404 
Another shot at numbers 6404 
How to cook the "uninformed" anode. 6404 
Okay, so this might work.... 6404 
The DHT Milq DSET, the prebuilt draft. 6404 
Looks good, but.... 6403 
2A3 with slightly lover filament voltage? 6403 
Less is more... usually. 6403 
Where to burn gain? how? and where to get beter st... 6402 
Stepping Out 6402 
Said to be good, but 6402 
Gain to lose 6402 
Why nothing is simple with this damn amp! 6402 
Another idea for losing gain 6402 
What's best 6402 
Options, options... 6402 
Actually, it is not so bad. 6402 
Other compromises... 6401 
Cathode vs. fixed with DHT 6400 
Is it glowing yet? 6380 
It is comming.... 6380 
The new MF channel. 6374 
I started to work on the Milq’s DHT Island. 6373 
Innerstage loading vs. OPT loading. 6365 
The intestage loading talk. 6362 
My playback feels like it is broken. 6357 
1 in 50? 6357 
Yes, it was after PP2000 6357 
Die Walküre soldering. 6356 
The post Die Walküre soldering 6355 
Another amp arond YO186 6354 
Gain? 6354 
The Unexpected problem with DHT Milq. 6354 
Simple is good 6353 
Ok, I am moving forward. 6353 
The Milq DSET is up. 6352 
My DH DSET – 2 days later. 6350 
Here is more data to reconcile. 6350 
Hm, that is interesting and unpleasant so far. 6349 
Ok, what do I want? 6349 
Let Go of Some Conceptual "Restrictions"? 6349 
The Milq DH DSET, the further thoughts in progress. 6349 
Crunching Numbers; Shaping Sound 6349 
How about the tweeter? 6348 
Tweeter Efficiency? 6348 
Safe and Sound 6348 
More mystery with tweeter but still on the subject. 6348 
Some clarifications. 6348 
How about that?!!! 6348 
Further considerations: DC-coupling. 6346 
Head Room 6346 
To kill the mandatory 13dB 6345 
DC coupling and killing 13db and driving 6e5p miller and.... 6345 
I do not think that it might be damaging… 6345 
Again with the PS 6345 
AKA J.C. Morrison’s amp but… 6343 
Parallel Universe 6343 
Melquiades HD MF DSET, Draft13. 6341 
Why I let other people build them... 6341 
Ok, it's going to right direction. 6341 
Ok, it looks already very close…. 6340 
The Loftinish-Whitish, well sort of…. 6337 
MF: the pre-final version. 6337 
Loftin-White? 6337 
Did anyone hear the PX4 amplifiers? 6337 
What Could use Improving at This Point? 6337 
The Milq’s MF front-end is done 6333 
Why I Let Other People Build Them, II 6333 
Define really quiet 6332 
Another variable of sound 6332 
Backlash? 6332 
Alternative filament supplies 6332 
I kind of faced a problem with AC 6332 
Going down the DC path 6331 
It is not about the “whole sound” but about “molec... 6331 
Molecular sound 6331 
AC-DC heater supply 6331 
The Tentlabs are $10 worth PS. 6331 
The unexpected resolution of AC vs. DC quandary. 6331 
The devil is less scared than it depicted. 6331 
Hiss or Hum 6331 
AC transformers 6331 
I have seen the Promised Land 6330 
OK, the choke noise is not a problem anymore 6330 
Ok, it is working fine but… 6329 
Divide and Conquer 6329 
The design phase is over. 6328 
The unexpected insanity! 6327 
Loading 6327 
Looking for inspiring ideas for 'universal' loadin... 6327 
A filaments Sherlock Holmes wanted. 6327 
Going the Distance 6327 
Read the f*** manual! 6327 
Agreed. 6327 
I agree 6327 
The filament transformer 6327 
Center-tap and options 6327 
Something like this…. 6327 
Avoiding "Dial-an-Amp" 6327 
The foreplay is going on. 6327 
Split balance 6326 
Further thoughts about my DH filaments 6326 
The Shuguang 2A3 tubes. 6326 
SHuguang 6326 
Going through…. 6325 
The 2.5V noise vs. 4V noise. 6324 
More about Shuguang 2A3C 6324 
Hum vs voltage 6324 
Meow about the tubes… 6324 
To Be a Content Cat 6324 
Completed! 6321 
Tradition 6321 
Absolutely beautiful! 6321 
The 'film' caps in PS 6320 
Science or religion 6320 
Mass Extinction 6320 
Electrolytics, technology and time 6320 
No more questions about PS capacitors. 6320 
Capacitor choices 6320 
Good time. Welcome back. Thanks God. 6319 
The minor day of Quartets. 6319 
Them's the Breaks 6319 
Eventually! 6318 
So Soon? 6318 
DHT MF channel and 6-ch amp: first conclusions 6318 
All Abuzz about Nothing 6317 
The wire for DC-coupling 6317 
The Dirt on DIY Backlash 6317 
DSET vs. the “better tubes”. 6317 
How to test the DH tubes properly? 6316 
Pairing up tubes for SE use 6315 
The DHT live reserve 6314 
Some interestng models 6314 
Eaten alive. 6314 
The tubey déjà vu? 6313 
The new concept of my output transformer. 6309 
The 4V takes a lead. 6305 
Listening the DH and the striped down version of M... 6302 
I kind of slowly learn what I need. 6302 
More HF from a transformer and DHT? 6300 
Since You Don't Need the Gain 6299 
Exiting the design mode? 6299 
Bye-bye the input divider on MF! 6299 
A few steps back and a gaint leap ahead. 6295 
Single-stage vs. DHT amp. 6294 
Setting up the new Playback 6293 
And the winner is… so far 6290 
If you like type 45... 6290 
Type 45... they're not all the same 6290 
Favorite Flavor? 6290 
The 45 times Meow... 6290 
The problem that I see is… 6290 
Running the 45 6290 
The 10Y...and bye bye Newton 6289 
The commentaries about everything. 6289 
Driver tube and biasing 6289 
DHT drivers 6289 
The ideas are worth trying? 6289 
A question about the polishing the things…. 6285 
The Particular Tube, I'm afraid... 6285 
Driving the 45... cathode first 6284 
ST or Globe; old or new... 6284 
Whatever sticks to the wall as an operation point ... 6284 
The attenuating crap in secondary. 6284 
Operating points and cathode current 6284 
The Burgeoning Opportunities! 6284 
Actually it is not so simple. 6284 
Resistors at the front 6283 
A minor alternation of a position 6283 
The era of enlightenment. 6280 
The devil is in the details.... 6280 
Constructing Sound 6280 
A new view on the DHT evaluation. 6279 
The “strange” YO186 6270 
The dead guy’s lessons. 6225 
2S4S and 2A3 6216 
Ho to use the YO186 6209 
YO 186 fundamental flavor 6209 
The YO-YO tube and "fundamentals" channel 6209 
The live without the YO186, again.... 6207 
Not anymore! 6196 
The very good YoYonisation! 6195 
….above and below two very clean channel. 6194 
The DHT and esoteric imaging deformation. 6181 
DHT, YO186, or??? 6181 
I had no idea how ‘different’ it is. 6128 
The Kazitsky Manufacturing and YO104, some history. 6127 
"Absolution and Eternal Refuge." 6124 
Sofia Electric Type 45 Mesh 6114 
The true association of YO186's Sounds. 5876 
All the Best from Burgundy 5876 
Cheesy tubes 5875 
Me and my DHT references… 5766 
Y0-186 in winter. 5669 
Y0-186 sounds like… 5668 
Rethinking the YO186 tube. 5637 
In My Dreams 5637 
Grunt from type 45? A ridicules comment. 5637 
Blame? 5636 
When good is not good enough. 5636 
45s, Drivers, and 45s 5636 
Hm, that was so simple after all! 5635 
How the YO186 was used. 5219 
What is old is new? 5218 
YO186 vs. type 45. 5217 
The YO186 is gone.... :-( 4766 
That sucks. 4766 
YO186 4764 
Hm, what the hell is going on? 4764 
I do not think that anybody but me would like YO186 4764 
A hallucination? 4761 
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