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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 6545 
One-stage Milq++ and the DHT's alleged tone 6544 
DHT Milq? 6544 
The DHT journey. 6544 
DHT tone 6544 
Well, why not? 6543 
Holding the Fort 6543 
My DHT experiment: Preface 6543 
Input tube and DC heaters 6542 
Reimyo Pat 777 6542 
My DHT experiment: Observations 6538 
DHT or 300B? 6538 
300B 6538 
Talking, perception and the grounds for objectively 6538 
The Wine Via the Wine Glass 6537 
Hence the confusion 6537 
My DHT experiment: some conclusions. 6537 
Reality Reconstruction is not a functionality. 6537 
My experience with DHTs 6537 
Pigmented coloration? 6537 
Dht-dht 6537 
Dynamic viscosity? 6537 
The Pallette preamp... 6537 
If one DHT is good, two must be better? 6537 
"soul" of tubes 6537 
There is a difference... 6537 
Vibration injection? 6537 
Homework # 4334 6537 
The 01A-71A-10Y-45 chain 6537 
Old valves have more soul! 6536 
Was it soul or soil? 6536 
It was just a heading 6536 
Adjustable color: TIMBRE LOCK? 6536 
Neutral or neutral/uncoloured? 6536 
..are lacking in power, dynamics and bandwidth. 6536 
Timbre-Lock. Not quite ready for prime time. 6536 
Injection of analog dither? 6536 
Subliminal signal 6536 
The idea of analog randomanization. 6536 
Okay, what Avicena Power Generator 6536 
I hope you will be hearing about it. 6535 
Avicenna = Arabian 6535 
Persian, not Arab 6535 
The “second solution” - a major disappointment 6535 
More words to describe "sux" please 6535 
Revolution 6535 
The non-melodramatic DHT? 6535 
One-stage DHTs 6534 
One other thing 6534 
One stage 6534 
Brewing, thinking and heating 6534 
Physical characteristics of electronic devices 6534 
I see the things differently. 6534 
Don't waste time being "creative" 6534 
The audiophile attitude 6534 
The where and why of design choices 6534 
Blah blah blah 6534 
Laconic Clarity vs. Comfort vs. Nostalgia 6534 
Do I need to be hissing? 6534 
...associated with lack of neutrality and colorati... 6534 
John Broskie's Partial feedback amplifier 6534 
Randomness vs. freedom and the Homework # 4334 6533 
What is randomness? 6533 
Those least three possibilities… 6533 
Randomness and Music's Prerogative 6533 
It works, … sort of. The revolution is canceled. 6533 
Thorsten Loesch’s article about DHT SETs 6531 
A Beautiful Mind 6530 
Some summary and conclusions from the first phase. 6528 
Second phase: revising requirement for my DHT objectives. 6513 
Tubes for your DHT amp 6513 
Abandoning Milq? 6513 
Will see how it goes.... 6513 
Single-stage Milq vs. Sun Audio VT-2A3 6511 
Topology and 2A3? 6511 
6SN7-2A3 amps? 6511 
Type Casting 6511 
Sun Audio SV-2A3 6511 
6sn7-2a3 6511 
Topology vs parts 6511 
For a DHT amp, you are listening to the power supply 6511 
The vintage tubes syndrome. 6511 
Parts Frenzy 6511 
Too many new sounds 6511 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6510 
New tubes 6509 
Milq bias vs. batery bias 6509 
The batteries are a tricky thing. 6509 
Swimming the ocean at night? 6509 
New 2A3 6509 
To kill of do not kill the capacitor. 6508 
The JJ Electronic amp. 6507 
JJ 2A3 and amp 6507 
Czech tubes 6505 
Single plated vs Double plated? 6505 
Mono plate 2A3 tubes 6505 
I suggested once VT52 tube 6504 
The 800R vs. 1800R vs. 5500R 6504 
YO-186 as the output tube. 6501 
Here she is. 6500 
Some talks about the new production tubes 6496 
New 2A3 tubes 6496 
Some thoughts about one-IHT vs. multiple-DHT 6496 
The Sun Audio with 6E5P 6495 
Multistage DHT circuits 6494 
Wrong tube or wrong topology – here is the question. 6493 
Emission Labs 2A3 6493 
Some comment and questions about then 2A3 talks. 6493 
Which Chinese 2A3? 6493 
OK, for a first time I like the San Audio Kit. 6493 
The YO186 Strip Show 6493 
More on the 2A3 comparisons 6492 
It will be interesting…. 6492 
OPT impedence 6492 
More about the Plate Loading 6492 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6487 
2A3 data 6487 
The New 2A3 tubes 6487 
How many stages I need for 110dB sensitivity, smal... 6487 
How many stages and why... and who makes that 45 o... 6486 
Everything about everything. 6486 
Some very good points... and... possibly more logi... 6486 
Options, options, options.... 6486 
I think we agree overall 6486 
An IDHT with more gain? 6485 
You don't ask for much now, eh? 6485 
2A3 tube impressions 6480 
Interesting analogy 6480 
NOS 2A3 tubes versus new tubes 6480 
Hmmm, let me try this one again... 6480 
Sylvania 2A3 identification 6480 
A picture is worth a thousand micromhos? 6480 
I have more interest in the period tubes 6480 
Why NOS tubes? 6479 
The Holly Ignorance 6479 
Tube tasting 6479 
The cathodes’ flatulence? 6479 
Make mine thoriated please 6479 
Any Germans out there? 6479 
6E5P VS 6E6P 6479 
Vibrations? What do you with them? 6479 
Vibration in tubes and sounds 6479 
UX4 vs UX4ruskie 6478 
Ringing the tubes? I do not know how about that. 6478 
Tube sound and vibration 6478 
The thoughts collection about YO186? 6472 
The lights look green for the YO tube 6471 
"Melquiades" with YO-186. Something like... 6471 
My version of RE-604 and PX4 6470 
The YO186 tube sockets. 6470 
B4/B5 British made 6469 
The YO186’s sockets and prices 6469 
DHT 2A3 amplifier rectification 6468 
My attitude toward tube rectification. 6468 
Tu-be or not Tu-be, seems Tu-be the question. 6467 
It looks like DHT DSET is shaping up. 6466 
The Sylvania 2A3 NOS report 6463 
The Citizen Kane syndrome. 6463 
Sylvania 2A3 in a World without Color 6462 
Are NOS and new manufacture comparing oranges to o... 6462 
That all is incorrect in a way…. 6462 
NOS vs new 2A3 tubes 6462 
The identical operation environment? 6462 
Preferred 2A3 operating point 6462 
The sound of the 2A3 however? 6462 
Circuit modification for 2A3 optimization 6461 
How to get max power from 2A3 6461 
2A3 voltages, loads and realized output power 6461 
Optimal operation of 2A3: an experiment 6461 
Tubes, Whole Circuits, Expectations and Sound 6461 
Gain is not power. 6461 
2A3 amplifier modification & Optimization 6461 
Specialized DSET approach 6461 
6C33/2A3 DSET? 6461 
SET usable power and making the most of it 6461 
The 2A3 loading 6461 
DSET solution for EdgarHorn? 6461 
Optimizing the 2A3 6461 
How much to DSET a DSET 6461 
DSET for Titan 6461 
The Best of All Worlds 6461 
Multiamp setup 6460 
Optimizing the (NOS) 2A3... "KM-style"? 6460 
There are many opportunities, it all depends what ... 6460 
Modifying amplifer to optimize NOS 2A3 performance 6460 
Conceptualizing Melquiades DSET is done 6454 
2A3 and 400V supply 6454 
Pudding and the chicken wires 6453 
Another shot at numbers 6453 
How to cook the "uninformed" anode. 6453 
Okay, so this might work.... 6453 
The DHT Milq DSET, the prebuilt draft. 6453 
Looks good, but.... 6452 
2A3 with slightly lover filament voltage? 6452 
Less is more... usually. 6452 
Where to burn gain? how? and where to get beter st... 6451 
Stepping Out 6451 
Said to be good, but 6451 
Gain to lose 6451 
Why nothing is simple with this damn amp! 6451 
Another idea for losing gain 6451 
What's best 6451 
Options, options... 6451 
Actually, it is not so bad. 6451 
Other compromises... 6450 
Cathode vs. fixed with DHT 6449 
Is it glowing yet? 6429 
It is comming.... 6429 
The new MF channel. 6423 
I started to work on the Milq’s DHT Island. 6422 
Innerstage loading vs. OPT loading. 6414 
The intestage loading talk. 6411 
My playback feels like it is broken. 6406 
1 in 50? 6406 
Yes, it was after PP2000 6406 
Die Walküre soldering. 6405 
The post Die Walküre soldering 6404 
Another amp arond YO186 6403 
Gain? 6403 
The Unexpected problem with DHT Milq. 6403 
Simple is good 6402 
Ok, I am moving forward. 6402 
The Milq DSET is up. 6401 
My DH DSET – 2 days later. 6399 
Here is more data to reconcile. 6399 
Hm, that is interesting and unpleasant so far. 6398 
Ok, what do I want? 6398 
Let Go of Some Conceptual "Restrictions"? 6398 
The Milq DH DSET, the further thoughts in progress. 6398 
Crunching Numbers; Shaping Sound 6398 
How about the tweeter? 6397 
Tweeter Efficiency? 6397 
Safe and Sound 6397 
More mystery with tweeter but still on the subject. 6397 
Some clarifications. 6397 
How about that?!!! 6397 
Further considerations: DC-coupling. 6395 
Head Room 6395 
To kill the mandatory 13dB 6394 
DC coupling and killing 13db and driving 6e5p miller and.... 6394 
I do not think that it might be damaging… 6394 
Again with the PS 6394 
AKA J.C. Morrison’s amp but… 6392 
Parallel Universe 6392 
Melquiades HD MF DSET, Draft13. 6390 
Why I let other people build them... 6390 
Ok, it's going to right direction. 6390 
Ok, it looks already very close…. 6389 
The Loftinish-Whitish, well sort of…. 6386 
MF: the pre-final version. 6386 
Loftin-White? 6386 
Did anyone hear the PX4 amplifiers? 6386 
What Could use Improving at This Point? 6386 
The Milq’s MF front-end is done 6382 
Why I Let Other People Build Them, II 6382 
Define really quiet 6381 
Another variable of sound 6381 
Backlash? 6381 
Alternative filament supplies 6381 
I kind of faced a problem with AC 6381 
Going down the DC path 6380 
It is not about the “whole sound” but about “molec... 6380 
Molecular sound 6380 
AC-DC heater supply 6380 
The Tentlabs are $10 worth PS. 6380 
The unexpected resolution of AC vs. DC quandary. 6380 
The devil is less scared than it depicted. 6380 
Hiss or Hum 6380 
AC transformers 6380 
I have seen the Promised Land 6379 
OK, the choke noise is not a problem anymore 6379 
Ok, it is working fine but… 6378 
Divide and Conquer 6378 
The design phase is over. 6377 
The unexpected insanity! 6376 
Loading 6376 
Looking for inspiring ideas for 'universal' loadin... 6376 
A filaments Sherlock Holmes wanted. 6376 
Going the Distance 6376 
Read the f*** manual! 6376 
Agreed. 6376 
I agree 6376 
The filament transformer 6376 
Center-tap and options 6376 
Something like this…. 6376 
Avoiding "Dial-an-Amp" 6376 
The foreplay is going on. 6376 
Split balance 6375 
Further thoughts about my DH filaments 6375 
The Shuguang 2A3 tubes. 6375 
SHuguang 6375 
Going through…. 6374 
The 2.5V noise vs. 4V noise. 6373 
More about Shuguang 2A3C 6373 
Hum vs voltage 6373 
Meow about the tubes… 6373 
To Be a Content Cat 6373 
Completed! 6370 
Tradition 6370 
Absolutely beautiful! 6370 
The 'film' caps in PS 6369 
Science or religion 6369 
Mass Extinction 6369 
Electrolytics, technology and time 6369 
No more questions about PS capacitors. 6369 
Capacitor choices 6369 
Good time. Welcome back. Thanks God. 6368 
The minor day of Quartets. 6368 
Them's the Breaks 6368 
Eventually! 6367 
So Soon? 6367 
DHT MF channel and 6-ch amp: first conclusions 6367 
All Abuzz about Nothing 6366 
The wire for DC-coupling 6366 
The Dirt on DIY Backlash 6366 
DSET vs. the “better tubes”. 6366 
How to test the DH tubes properly? 6365 
Pairing up tubes for SE use 6364 
The DHT live reserve 6363 
Some interestng models 6363 
Eaten alive. 6363 
The tubey déjà vu? 6362 
The new concept of my output transformer. 6358 
The 4V takes a lead. 6354 
Listening the DH and the striped down version of M... 6351 
I kind of slowly learn what I need. 6351 
More HF from a transformer and DHT? 6349 
Since You Don't Need the Gain 6348 
Exiting the design mode? 6348 
Bye-bye the input divider on MF! 6348 
A few steps back and a gaint leap ahead. 6344 
Single-stage vs. DHT amp. 6343 
Setting up the new Playback 6342 
And the winner is… so far 6339 
If you like type 45... 6339 
Type 45... they're not all the same 6339 
Favorite Flavor? 6339 
The 45 times Meow... 6339 
The problem that I see is… 6339 
Running the 45 6339 
The 10Y...and bye bye Newton 6338 
The commentaries about everything. 6338 
Driver tube and biasing 6338 
DHT drivers 6338 
The ideas are worth trying? 6338 
A question about the polishing the things…. 6334 
The Particular Tube, I'm afraid... 6334 
Driving the 45... cathode first 6333 
ST or Globe; old or new... 6333 
Whatever sticks to the wall as an operation point ... 6333 
The attenuating crap in secondary. 6333 
Operating points and cathode current 6333 
The Burgeoning Opportunities! 6333 
Actually it is not so simple. 6333 
Resistors at the front 6332 
A minor alternation of a position 6332 
The era of enlightenment. 6329 
The devil is in the details.... 6329 
Constructing Sound 6329 
A new view on the DHT evaluation. 6328 
The “strange” YO186 6319 
The dead guy’s lessons. 6274 
2S4S and 2A3 6265 
Ho to use the YO186 6258 
YO 186 fundamental flavor 6258 
The YO-YO tube and "fundamentals" channel 6258 
The live without the YO186, again.... 6256 
Not anymore! 6245 
The very good YoYonisation! 6244 
….above and below two very clean channel. 6243 
The DHT and esoteric imaging deformation. 6230 
DHT, YO186, or??? 6230 
I had no idea how ‘different’ it is. 6177 
The Kazitsky Manufacturing and YO104, some history. 6176 
"Absolution and Eternal Refuge." 6173 
Sofia Electric Type 45 Mesh 6163 
The true association of YO186's Sounds. 5925 
All the Best from Burgundy 5925 
Cheesy tubes 5924 
Me and my DHT references… 5815 
Y0-186 in winter. 5718 
Y0-186 sounds like… 5717 
Rethinking the YO186 tube. 5686 
In My Dreams 5686 
Grunt from type 45? A ridicules comment. 5686 
Blame? 5685 
When good is not good enough. 5685 
45s, Drivers, and 45s 5685 
Hm, that was so simple after all! 5684 
How the YO186 was used. 5268 
What is old is new? 5267 
YO186 vs. type 45. 5266 
The YO186 is gone.... :-( 4815 
That sucks. 4815 
YO186 4813 
Hm, what the hell is going on? 4813 
I do not think that anybody but me would like YO186 4813 
A hallucination? 4810 
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