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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 6538 
One-stage Milq++ and the DHT's alleged tone 6537 
DHT Milq? 6537 
The DHT journey. 6537 
DHT tone 6537 
Well, why not? 6536 
Holding the Fort 6536 
My DHT experiment: Preface 6536 
Input tube and DC heaters 6535 
Reimyo Pat 777 6535 
My DHT experiment: Observations 6531 
DHT or 300B? 6531 
300B 6531 
Talking, perception and the grounds for objectively 6531 
The Wine Via the Wine Glass 6530 
Hence the confusion 6530 
My DHT experiment: some conclusions. 6530 
Reality Reconstruction is not a functionality. 6530 
My experience with DHTs 6530 
Pigmented coloration? 6530 
Dht-dht 6530 
Dynamic viscosity? 6530 
The Pallette preamp... 6530 
If one DHT is good, two must be better? 6530 
"soul" of tubes 6530 
There is a difference... 6530 
Vibration injection? 6530 
Homework # 4334 6530 
The 01A-71A-10Y-45 chain 6530 
Old valves have more soul! 6529 
Was it soul or soil? 6529 
It was just a heading 6529 
Adjustable color: TIMBRE LOCK? 6529 
Neutral or neutral/uncoloured? 6529 
..are lacking in power, dynamics and bandwidth. 6529 
Timbre-Lock. Not quite ready for prime time. 6529 
Injection of analog dither? 6529 
Subliminal signal 6529 
The idea of analog randomanization. 6529 
Okay, what Avicena Power Generator 6529 
I hope you will be hearing about it. 6528 
Avicenna = Arabian 6528 
Persian, not Arab 6528 
The “second solution” - a major disappointment 6528 
More words to describe "sux" please 6528 
Revolution 6528 
The non-melodramatic DHT? 6528 
One-stage DHTs 6527 
One other thing 6527 
One stage 6527 
Brewing, thinking and heating 6527 
Physical characteristics of electronic devices 6527 
I see the things differently. 6527 
Don't waste time being "creative" 6527 
The audiophile attitude 6527 
The where and why of design choices 6527 
Blah blah blah 6527 
Laconic Clarity vs. Comfort vs. Nostalgia 6527 
Do I need to be hissing? 6527 
...associated with lack of neutrality and colorati... 6527 
John Broskie's Partial feedback amplifier 6527 
Randomness vs. freedom and the Homework # 4334 6526 
What is randomness? 6526 
Those least three possibilities… 6526 
Randomness and Music's Prerogative 6526 
It works, … sort of. The revolution is canceled. 6526 
Thorsten Loesch’s article about DHT SETs 6524 
A Beautiful Mind 6523 
Some summary and conclusions from the first phase. 6521 
Second phase: revising requirement for my DHT objectives. 6506 
Tubes for your DHT amp 6506 
Abandoning Milq? 6506 
Will see how it goes.... 6506 
Single-stage Milq vs. Sun Audio VT-2A3 6504 
Topology and 2A3? 6504 
6SN7-2A3 amps? 6504 
Type Casting 6504 
Sun Audio SV-2A3 6504 
6sn7-2a3 6504 
Topology vs parts 6504 
For a DHT amp, you are listening to the power supply 6504 
The vintage tubes syndrome. 6504 
Parts Frenzy 6504 
Too many new sounds 6504 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6503 
New tubes 6502 
Milq bias vs. batery bias 6502 
The batteries are a tricky thing. 6502 
Swimming the ocean at night? 6502 
New 2A3 6502 
To kill of do not kill the capacitor. 6501 
The JJ Electronic amp. 6500 
JJ 2A3 and amp 6500 
Czech tubes 6498 
Single plated vs Double plated? 6498 
Mono plate 2A3 tubes 6498 
I suggested once VT52 tube 6497 
The 800R vs. 1800R vs. 5500R 6497 
YO-186 as the output tube. 6494 
Here she is. 6493 
Some talks about the new production tubes 6489 
New 2A3 tubes 6489 
Some thoughts about one-IHT vs. multiple-DHT 6489 
The Sun Audio with 6E5P 6488 
Multistage DHT circuits 6487 
Wrong tube or wrong topology – here is the question. 6486 
Emission Labs 2A3 6486 
Some comment and questions about then 2A3 talks. 6486 
Which Chinese 2A3? 6486 
OK, for a first time I like the San Audio Kit. 6486 
The YO186 Strip Show 6486 
More on the 2A3 comparisons 6485 
It will be interesting…. 6485 
OPT impedence 6485 
More about the Plate Loading 6485 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6480 
2A3 data 6480 
The New 2A3 tubes 6480 
How many stages I need for 110dB sensitivity, smal... 6480 
How many stages and why... and who makes that 45 o... 6479 
Everything about everything. 6479 
Some very good points... and... possibly more logi... 6479 
Options, options, options.... 6479 
I think we agree overall 6479 
An IDHT with more gain? 6478 
You don't ask for much now, eh? 6478 
2A3 tube impressions 6473 
Interesting analogy 6473 
NOS 2A3 tubes versus new tubes 6473 
Hmmm, let me try this one again... 6473 
Sylvania 2A3 identification 6473 
A picture is worth a thousand micromhos? 6473 
I have more interest in the period tubes 6473 
Why NOS tubes? 6472 
The Holly Ignorance 6472 
Tube tasting 6472 
The cathodes’ flatulence? 6472 
Make mine thoriated please 6472 
Any Germans out there? 6472 
6E5P VS 6E6P 6472 
Vibrations? What do you with them? 6472 
Vibration in tubes and sounds 6472 
UX4 vs UX4ruskie 6471 
Ringing the tubes? I do not know how about that. 6471 
Tube sound and vibration 6471 
The thoughts collection about YO186? 6465 
The lights look green for the YO tube 6464 
"Melquiades" with YO-186. Something like... 6464 
My version of RE-604 and PX4 6463 
The YO186 tube sockets. 6463 
B4/B5 British made 6462 
The YO186’s sockets and prices 6462 
DHT 2A3 amplifier rectification 6461 
My attitude toward tube rectification. 6461 
Tu-be or not Tu-be, seems Tu-be the question. 6460 
It looks like DHT DSET is shaping up. 6459 
The Sylvania 2A3 NOS report 6456 
The Citizen Kane syndrome. 6456 
Sylvania 2A3 in a World without Color 6455 
Are NOS and new manufacture comparing oranges to o... 6455 
That all is incorrect in a way…. 6455 
NOS vs new 2A3 tubes 6455 
The identical operation environment? 6455 
Preferred 2A3 operating point 6455 
The sound of the 2A3 however? 6455 
Circuit modification for 2A3 optimization 6454 
How to get max power from 2A3 6454 
2A3 voltages, loads and realized output power 6454 
Optimal operation of 2A3: an experiment 6454 
Tubes, Whole Circuits, Expectations and Sound 6454 
Gain is not power. 6454 
2A3 amplifier modification & Optimization 6454 
Specialized DSET approach 6454 
6C33/2A3 DSET? 6454 
SET usable power and making the most of it 6454 
The 2A3 loading 6454 
DSET solution for EdgarHorn? 6454 
Optimizing the 2A3 6454 
How much to DSET a DSET 6454 
DSET for Titan 6454 
The Best of All Worlds 6454 
Multiamp setup 6453 
Optimizing the (NOS) 2A3... "KM-style"? 6453 
There are many opportunities, it all depends what ... 6453 
Modifying amplifer to optimize NOS 2A3 performance 6453 
Conceptualizing Melquiades DSET is done 6447 
2A3 and 400V supply 6447 
Pudding and the chicken wires 6446 
Another shot at numbers 6446 
How to cook the "uninformed" anode. 6446 
Okay, so this might work.... 6446 
The DHT Milq DSET, the prebuilt draft. 6446 
Looks good, but.... 6445 
2A3 with slightly lover filament voltage? 6445 
Less is more... usually. 6445 
Where to burn gain? how? and where to get beter st... 6444 
Stepping Out 6444 
Said to be good, but 6444 
Gain to lose 6444 
Why nothing is simple with this damn amp! 6444 
Another idea for losing gain 6444 
What's best 6444 
Options, options... 6444 
Actually, it is not so bad. 6444 
Other compromises... 6443 
Cathode vs. fixed with DHT 6442 
Is it glowing yet? 6422 
It is comming.... 6422 
The new MF channel. 6416 
I started to work on the Milq’s DHT Island. 6415 
Innerstage loading vs. OPT loading. 6407 
The intestage loading talk. 6404 
My playback feels like it is broken. 6399 
1 in 50? 6399 
Yes, it was after PP2000 6399 
Die Walküre soldering. 6398 
The post Die Walküre soldering 6397 
Another amp arond YO186 6396 
Gain? 6396 
The Unexpected problem with DHT Milq. 6396 
Simple is good 6395 
Ok, I am moving forward. 6395 
The Milq DSET is up. 6394 
My DH DSET – 2 days later. 6392 
Here is more data to reconcile. 6392 
Hm, that is interesting and unpleasant so far. 6391 
Ok, what do I want? 6391 
Let Go of Some Conceptual "Restrictions"? 6391 
The Milq DH DSET, the further thoughts in progress. 6391 
Crunching Numbers; Shaping Sound 6391 
How about the tweeter? 6390 
Tweeter Efficiency? 6390 
Safe and Sound 6390 
More mystery with tweeter but still on the subject. 6390 
Some clarifications. 6390 
How about that?!!! 6390 
Further considerations: DC-coupling. 6388 
Head Room 6388 
To kill the mandatory 13dB 6387 
DC coupling and killing 13db and driving 6e5p miller and.... 6387 
I do not think that it might be damaging… 6387 
Again with the PS 6387 
AKA J.C. Morrison’s amp but… 6385 
Parallel Universe 6385 
Melquiades HD MF DSET, Draft13. 6383 
Why I let other people build them... 6383 
Ok, it's going to right direction. 6383 
Ok, it looks already very close…. 6382 
The Loftinish-Whitish, well sort of…. 6379 
MF: the pre-final version. 6379 
Loftin-White? 6379 
Did anyone hear the PX4 amplifiers? 6379 
What Could use Improving at This Point? 6379 
The Milq’s MF front-end is done 6375 
Why I Let Other People Build Them, II 6375 
Define really quiet 6374 
Another variable of sound 6374 
Backlash? 6374 
Alternative filament supplies 6374 
I kind of faced a problem with AC 6374 
Going down the DC path 6373 
It is not about the “whole sound” but about “molec... 6373 
Molecular sound 6373 
AC-DC heater supply 6373 
The Tentlabs are $10 worth PS. 6373 
The unexpected resolution of AC vs. DC quandary. 6373 
The devil is less scared than it depicted. 6373 
Hiss or Hum 6373 
AC transformers 6373 
I have seen the Promised Land 6372 
OK, the choke noise is not a problem anymore 6372 
Ok, it is working fine but… 6371 
Divide and Conquer 6371 
The design phase is over. 6370 
The unexpected insanity! 6369 
Loading 6369 
Looking for inspiring ideas for 'universal' loadin... 6369 
A filaments Sherlock Holmes wanted. 6369 
Going the Distance 6369 
Read the f*** manual! 6369 
Agreed. 6369 
I agree 6369 
The filament transformer 6369 
Center-tap and options 6369 
Something like this…. 6369 
Avoiding "Dial-an-Amp" 6369 
The foreplay is going on. 6369 
Split balance 6368 
Further thoughts about my DH filaments 6368 
The Shuguang 2A3 tubes. 6368 
SHuguang 6368 
Going through…. 6367 
The 2.5V noise vs. 4V noise. 6366 
More about Shuguang 2A3C 6366 
Hum vs voltage 6366 
Meow about the tubes… 6366 
To Be a Content Cat 6366 
Completed! 6363 
Tradition 6363 
Absolutely beautiful! 6363 
The 'film' caps in PS 6362 
Science or religion 6362 
Mass Extinction 6362 
Electrolytics, technology and time 6362 
No more questions about PS capacitors. 6362 
Capacitor choices 6362 
Good time. Welcome back. Thanks God. 6361 
The minor day of Quartets. 6361 
Them's the Breaks 6361 
Eventually! 6360 
So Soon? 6360 
DHT MF channel and 6-ch amp: first conclusions 6360 
All Abuzz about Nothing 6359 
The wire for DC-coupling 6359 
The Dirt on DIY Backlash 6359 
DSET vs. the “better tubes”. 6359 
How to test the DH tubes properly? 6358 
Pairing up tubes for SE use 6357 
The DHT live reserve 6356 
Some interestng models 6356 
Eaten alive. 6356 
The tubey déjà vu? 6355 
The new concept of my output transformer. 6351 
The 4V takes a lead. 6347 
Listening the DH and the striped down version of M... 6344 
I kind of slowly learn what I need. 6344 
More HF from a transformer and DHT? 6342 
Since You Don't Need the Gain 6341 
Exiting the design mode? 6341 
Bye-bye the input divider on MF! 6341 
A few steps back and a gaint leap ahead. 6337 
Single-stage vs. DHT amp. 6336 
Setting up the new Playback 6335 
And the winner is… so far 6332 
If you like type 45... 6332 
Type 45... they're not all the same 6332 
Favorite Flavor? 6332 
The 45 times Meow... 6332 
The problem that I see is… 6332 
Running the 45 6332 
The 10Y...and bye bye Newton 6331 
The commentaries about everything. 6331 
Driver tube and biasing 6331 
DHT drivers 6331 
The ideas are worth trying? 6331 
A question about the polishing the things…. 6327 
The Particular Tube, I'm afraid... 6327 
Driving the 45... cathode first 6326 
ST or Globe; old or new... 6326 
Whatever sticks to the wall as an operation point ... 6326 
The attenuating crap in secondary. 6326 
Operating points and cathode current 6326 
The Burgeoning Opportunities! 6326 
Actually it is not so simple. 6326 
Resistors at the front 6325 
A minor alternation of a position 6325 
The era of enlightenment. 6322 
The devil is in the details.... 6322 
Constructing Sound 6322 
A new view on the DHT evaluation. 6321 
The “strange” YO186 6312 
The dead guy’s lessons. 6267 
2S4S and 2A3 6258 
Ho to use the YO186 6251 
YO 186 fundamental flavor 6251 
The YO-YO tube and "fundamentals" channel 6251 
The live without the YO186, again.... 6249 
Not anymore! 6238 
The very good YoYonisation! 6237 
….above and below two very clean channel. 6236 
The DHT and esoteric imaging deformation. 6223 
DHT, YO186, or??? 6223 
I had no idea how ‘different’ it is. 6170 
The Kazitsky Manufacturing and YO104, some history. 6169 
"Absolution and Eternal Refuge." 6166 
Sofia Electric Type 45 Mesh 6156 
The true association of YO186's Sounds. 5918 
All the Best from Burgundy 5918 
Cheesy tubes 5917 
Me and my DHT references… 5808 
Y0-186 in winter. 5711 
Y0-186 sounds like… 5710 
Rethinking the YO186 tube. 5679 
In My Dreams 5679 
Grunt from type 45? A ridicules comment. 5679 
Blame? 5678 
When good is not good enough. 5678 
45s, Drivers, and 45s 5678 
Hm, that was so simple after all! 5677 
How the YO186 was used. 5261 
What is old is new? 5260 
YO186 vs. type 45. 5259 
The YO186 is gone.... :-( 4808 
That sucks. 4808 
YO186 4806 
Hm, what the hell is going on? 4806 
I do not think that anybody but me would like YO186 4806 
A hallucination? 4803 
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