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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 6491 
One-stage Milq++ and the DHT's alleged tone 6490 
DHT Milq? 6490 
The DHT journey. 6490 
DHT tone 6490 
Well, why not? 6489 
Holding the Fort 6489 
My DHT experiment: Preface 6489 
Input tube and DC heaters 6488 
Reimyo Pat 777 6488 
My DHT experiment: Observations 6484 
DHT or 300B? 6484 
300B 6484 
Talking, perception and the grounds for objectively 6484 
The Wine Via the Wine Glass 6483 
Hence the confusion 6483 
My DHT experiment: some conclusions. 6483 
Reality Reconstruction is not a functionality. 6483 
My experience with DHTs 6483 
Pigmented coloration? 6483 
Dht-dht 6483 
Dynamic viscosity? 6483 
The Pallette preamp... 6483 
If one DHT is good, two must be better? 6483 
"soul" of tubes 6483 
There is a difference... 6483 
Vibration injection? 6483 
Homework # 4334 6483 
The 01A-71A-10Y-45 chain 6483 
Old valves have more soul! 6482 
Was it soul or soil? 6482 
It was just a heading 6482 
Adjustable color: TIMBRE LOCK? 6482 
Neutral or neutral/uncoloured? 6482 
..are lacking in power, dynamics and bandwidth. 6482 
Timbre-Lock. Not quite ready for prime time. 6482 
Injection of analog dither? 6482 
Subliminal signal 6482 
The idea of analog randomanization. 6482 
Okay, what Avicena Power Generator 6482 
I hope you will be hearing about it. 6481 
Avicenna = Arabian 6481 
Persian, not Arab 6481 
The “second solution” - a major disappointment 6481 
More words to describe "sux" please 6481 
Revolution 6481 
The non-melodramatic DHT? 6481 
One-stage DHTs 6480 
One other thing 6480 
One stage 6480 
Brewing, thinking and heating 6480 
Physical characteristics of electronic devices 6480 
I see the things differently. 6480 
Don't waste time being "creative" 6480 
The audiophile attitude 6480 
The where and why of design choices 6480 
Blah blah blah 6480 
Laconic Clarity vs. Comfort vs. Nostalgia 6480 
Do I need to be hissing? 6480 
...associated with lack of neutrality and colorati... 6480 
John Broskie's Partial feedback amplifier 6480 
Randomness vs. freedom and the Homework # 4334 6479 
What is randomness? 6479 
Those least three possibilities… 6479 
Randomness and Music's Prerogative 6479 
It works, … sort of. The revolution is canceled. 6479 
Thorsten Loesch’s article about DHT SETs 6477 
A Beautiful Mind 6476 
Some summary and conclusions from the first phase. 6474 
Second phase: revising requirement for my DHT objectives. 6459 
Tubes for your DHT amp 6459 
Abandoning Milq? 6459 
Will see how it goes.... 6459 
Single-stage Milq vs. Sun Audio VT-2A3 6457 
Topology and 2A3? 6457 
6SN7-2A3 amps? 6457 
Type Casting 6457 
Sun Audio SV-2A3 6457 
6sn7-2a3 6457 
Topology vs parts 6457 
For a DHT amp, you are listening to the power supply 6457 
The vintage tubes syndrome. 6457 
Parts Frenzy 6457 
Too many new sounds 6457 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6456 
New tubes 6455 
Milq bias vs. batery bias 6455 
The batteries are a tricky thing. 6455 
Swimming the ocean at night? 6455 
New 2A3 6455 
To kill of do not kill the capacitor. 6454 
The JJ Electronic amp. 6453 
JJ 2A3 and amp 6453 
Czech tubes 6451 
Single plated vs Double plated? 6451 
Mono plate 2A3 tubes 6451 
I suggested once VT52 tube 6450 
The 800R vs. 1800R vs. 5500R 6450 
YO-186 as the output tube. 6447 
Here she is. 6446 
Some talks about the new production tubes 6442 
New 2A3 tubes 6442 
Some thoughts about one-IHT vs. multiple-DHT 6442 
The Sun Audio with 6E5P 6441 
Multistage DHT circuits 6440 
Wrong tube or wrong topology – here is the question. 6439 
Emission Labs 2A3 6439 
Some comment and questions about then 2A3 talks. 6439 
Which Chinese 2A3? 6439 
OK, for a first time I like the San Audio Kit. 6439 
The YO186 Strip Show 6439 
More on the 2A3 comparisons 6438 
It will be interesting…. 6438 
OPT impedence 6438 
More about the Plate Loading 6438 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6433 
2A3 data 6433 
The New 2A3 tubes 6433 
How many stages I need for 110dB sensitivity, smal... 6433 
How many stages and why... and who makes that 45 o... 6432 
Everything about everything. 6432 
Some very good points... and... possibly more logi... 6432 
Options, options, options.... 6432 
I think we agree overall 6432 
An IDHT with more gain? 6431 
You don't ask for much now, eh? 6431 
2A3 tube impressions 6426 
Interesting analogy 6426 
NOS 2A3 tubes versus new tubes 6426 
Hmmm, let me try this one again... 6426 
Sylvania 2A3 identification 6426 
A picture is worth a thousand micromhos? 6426 
I have more interest in the period tubes 6426 
Why NOS tubes? 6425 
The Holly Ignorance 6425 
Tube tasting 6425 
The cathodes’ flatulence? 6425 
Make mine thoriated please 6425 
Any Germans out there? 6425 
6E5P VS 6E6P 6425 
Vibrations? What do you with them? 6425 
Vibration in tubes and sounds 6425 
UX4 vs UX4ruskie 6424 
Ringing the tubes? I do not know how about that. 6424 
Tube sound and vibration 6424 
The thoughts collection about YO186? 6418 
The lights look green for the YO tube 6417 
"Melquiades" with YO-186. Something like... 6417 
My version of RE-604 and PX4 6416 
The YO186 tube sockets. 6416 
B4/B5 British made 6415 
The YO186’s sockets and prices 6415 
DHT 2A3 amplifier rectification 6414 
My attitude toward tube rectification. 6414 
Tu-be or not Tu-be, seems Tu-be the question. 6413 
It looks like DHT DSET is shaping up. 6412 
The Sylvania 2A3 NOS report 6409 
The Citizen Kane syndrome. 6409 
Sylvania 2A3 in a World without Color 6408 
Are NOS and new manufacture comparing oranges to o... 6408 
That all is incorrect in a way…. 6408 
NOS vs new 2A3 tubes 6408 
The identical operation environment? 6408 
Preferred 2A3 operating point 6408 
The sound of the 2A3 however? 6408 
Circuit modification for 2A3 optimization 6407 
How to get max power from 2A3 6407 
2A3 voltages, loads and realized output power 6407 
Optimal operation of 2A3: an experiment 6407 
Tubes, Whole Circuits, Expectations and Sound 6407 
Gain is not power. 6407 
2A3 amplifier modification & Optimization 6407 
Specialized DSET approach 6407 
6C33/2A3 DSET? 6407 
SET usable power and making the most of it 6407 
The 2A3 loading 6407 
DSET solution for EdgarHorn? 6407 
Optimizing the 2A3 6407 
How much to DSET a DSET 6407 
DSET for Titan 6407 
The Best of All Worlds 6407 
Multiamp setup 6406 
Optimizing the (NOS) 2A3... "KM-style"? 6406 
There are many opportunities, it all depends what ... 6406 
Modifying amplifer to optimize NOS 2A3 performance 6406 
Conceptualizing Melquiades DSET is done 6400 
2A3 and 400V supply 6400 
Pudding and the chicken wires 6399 
Another shot at numbers 6399 
How to cook the "uninformed" anode. 6399 
Okay, so this might work.... 6399 
The DHT Milq DSET, the prebuilt draft. 6399 
Looks good, but.... 6398 
2A3 with slightly lover filament voltage? 6398 
Less is more... usually. 6398 
Where to burn gain? how? and where to get beter st... 6397 
Stepping Out 6397 
Said to be good, but 6397 
Gain to lose 6397 
Why nothing is simple with this damn amp! 6397 
Another idea for losing gain 6397 
What's best 6397 
Options, options... 6397 
Actually, it is not so bad. 6397 
Other compromises... 6396 
Cathode vs. fixed with DHT 6395 
Is it glowing yet? 6375 
It is comming.... 6375 
The new MF channel. 6369 
I started to work on the Milq’s DHT Island. 6368 
Innerstage loading vs. OPT loading. 6360 
The intestage loading talk. 6357 
My playback feels like it is broken. 6352 
1 in 50? 6352 
Yes, it was after PP2000 6352 
Die Walküre soldering. 6351 
The post Die Walküre soldering 6350 
Another amp arond YO186 6349 
Gain? 6349 
The Unexpected problem with DHT Milq. 6349 
Simple is good 6348 
Ok, I am moving forward. 6348 
The Milq DSET is up. 6347 
My DH DSET – 2 days later. 6345 
Here is more data to reconcile. 6345 
Hm, that is interesting and unpleasant so far. 6344 
Ok, what do I want? 6344 
Let Go of Some Conceptual "Restrictions"? 6344 
The Milq DH DSET, the further thoughts in progress. 6344 
Crunching Numbers; Shaping Sound 6344 
How about the tweeter? 6343 
Tweeter Efficiency? 6343 
Safe and Sound 6343 
More mystery with tweeter but still on the subject. 6343 
Some clarifications. 6343 
How about that?!!! 6343 
Further considerations: DC-coupling. 6341 
Head Room 6341 
To kill the mandatory 13dB 6340 
DC coupling and killing 13db and driving 6e5p miller and.... 6340 
I do not think that it might be damaging… 6340 
Again with the PS 6340 
AKA J.C. Morrison’s amp but… 6338 
Parallel Universe 6338 
Melquiades HD MF DSET, Draft13. 6336 
Why I let other people build them... 6336 
Ok, it's going to right direction. 6336 
Ok, it looks already very close…. 6335 
The Loftinish-Whitish, well sort of…. 6332 
MF: the pre-final version. 6332 
Loftin-White? 6332 
Did anyone hear the PX4 amplifiers? 6332 
What Could use Improving at This Point? 6332 
The Milq’s MF front-end is done 6328 
Why I Let Other People Build Them, II 6328 
Define really quiet 6327 
Another variable of sound 6327 
Backlash? 6327 
Alternative filament supplies 6327 
I kind of faced a problem with AC 6327 
Going down the DC path 6326 
It is not about the “whole sound” but about “molec... 6326 
Molecular sound 6326 
AC-DC heater supply 6326 
The Tentlabs are $10 worth PS. 6326 
The unexpected resolution of AC vs. DC quandary. 6326 
The devil is less scared than it depicted. 6326 
Hiss or Hum 6326 
AC transformers 6326 
I have seen the Promised Land 6325 
OK, the choke noise is not a problem anymore 6325 
Ok, it is working fine but… 6324 
Divide and Conquer 6324 
The design phase is over. 6323 
The unexpected insanity! 6322 
Loading 6322 
Looking for inspiring ideas for 'universal' loadin... 6322 
A filaments Sherlock Holmes wanted. 6322 
Going the Distance 6322 
Read the f*** manual! 6322 
Agreed. 6322 
I agree 6322 
The filament transformer 6322 
Center-tap and options 6322 
Something like this…. 6322 
Avoiding "Dial-an-Amp" 6322 
The foreplay is going on. 6322 
Split balance 6321 
Further thoughts about my DH filaments 6321 
The Shuguang 2A3 tubes. 6321 
SHuguang 6321 
Going through…. 6320 
The 2.5V noise vs. 4V noise. 6319 
More about Shuguang 2A3C 6319 
Hum vs voltage 6319 
Meow about the tubes… 6319 
To Be a Content Cat 6319 
Completed! 6316 
Tradition 6316 
Absolutely beautiful! 6316 
The 'film' caps in PS 6315 
Science or religion 6315 
Mass Extinction 6315 
Electrolytics, technology and time 6315 
No more questions about PS capacitors. 6315 
Capacitor choices 6315 
Good time. Welcome back. Thanks God. 6314 
The minor day of Quartets. 6314 
Them's the Breaks 6314 
Eventually! 6313 
So Soon? 6313 
DHT MF channel and 6-ch amp: first conclusions 6313 
All Abuzz about Nothing 6312 
The wire for DC-coupling 6312 
The Dirt on DIY Backlash 6312 
DSET vs. the “better tubes”. 6312 
How to test the DH tubes properly? 6311 
Pairing up tubes for SE use 6310 
The DHT live reserve 6309 
Some interestng models 6309 
Eaten alive. 6309 
The tubey déjà vu? 6308 
The new concept of my output transformer. 6304 
The 4V takes a lead. 6300 
Listening the DH and the striped down version of M... 6297 
I kind of slowly learn what I need. 6297 
More HF from a transformer and DHT? 6295 
Since You Don't Need the Gain 6294 
Exiting the design mode? 6294 
Bye-bye the input divider on MF! 6294 
A few steps back and a gaint leap ahead. 6290 
Single-stage vs. DHT amp. 6289 
Setting up the new Playback 6288 
And the winner is… so far 6285 
If you like type 45... 6285 
Type 45... they're not all the same 6285 
Favorite Flavor? 6285 
The 45 times Meow... 6285 
The problem that I see is… 6285 
Running the 45 6285 
The 10Y...and bye bye Newton 6284 
The commentaries about everything. 6284 
Driver tube and biasing 6284 
DHT drivers 6284 
The ideas are worth trying? 6284 
A question about the polishing the things…. 6280 
The Particular Tube, I'm afraid... 6280 
Driving the 45... cathode first 6279 
ST or Globe; old or new... 6279 
Whatever sticks to the wall as an operation point ... 6279 
The attenuating crap in secondary. 6279 
Operating points and cathode current 6279 
The Burgeoning Opportunities! 6279 
Actually it is not so simple. 6279 
Resistors at the front 6278 
A minor alternation of a position 6278 
The era of enlightenment. 6275 
The devil is in the details.... 6275 
Constructing Sound 6275 
A new view on the DHT evaluation. 6274 
The “strange” YO186 6265 
The dead guy’s lessons. 6220 
2S4S and 2A3 6211 
Ho to use the YO186 6204 
YO 186 fundamental flavor 6204 
The YO-YO tube and "fundamentals" channel 6204 
The live without the YO186, again.... 6202 
Not anymore! 6191 
The very good YoYonisation! 6190 
….above and below two very clean channel. 6189 
The DHT and esoteric imaging deformation. 6176 
DHT, YO186, or??? 6176 
I had no idea how ‘different’ it is. 6123 
The Kazitsky Manufacturing and YO104, some history. 6122 
"Absolution and Eternal Refuge." 6119 
Sofia Electric Type 45 Mesh 6109 
The true association of YO186's Sounds. 5871 
All the Best from Burgundy 5871 
Cheesy tubes 5870 
Me and my DHT references… 5761 
Y0-186 in winter. 5664 
Y0-186 sounds like… 5663 
Rethinking the YO186 tube. 5632 
In My Dreams 5632 
Grunt from type 45? A ridicules comment. 5632 
Blame? 5631 
When good is not good enough. 5631 
45s, Drivers, and 45s 5631 
Hm, that was so simple after all! 5630 
How the YO186 was used. 5214 
What is old is new? 5213 
YO186 vs. type 45. 5212 
The YO186 is gone.... :-( 4761 
That sucks. 4761 
YO186 4759 
Hm, what the hell is going on? 4759 
I do not think that anybody but me would like YO186 4759 
A hallucination? 4756 
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