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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 6493 
One-stage Milq++ and the DHT's alleged tone 6492 
DHT Milq? 6492 
The DHT journey. 6492 
DHT tone 6492 
Well, why not? 6491 
Holding the Fort 6491 
My DHT experiment: Preface 6491 
Input tube and DC heaters 6490 
Reimyo Pat 777 6490 
My DHT experiment: Observations 6486 
DHT or 300B? 6486 
300B 6486 
Talking, perception and the grounds for objectively 6486 
The Wine Via the Wine Glass 6485 
Hence the confusion 6485 
My DHT experiment: some conclusions. 6485 
Reality Reconstruction is not a functionality. 6485 
My experience with DHTs 6485 
Pigmented coloration? 6485 
Dht-dht 6485 
Dynamic viscosity? 6485 
The Pallette preamp... 6485 
If one DHT is good, two must be better? 6485 
"soul" of tubes 6485 
There is a difference... 6485 
Vibration injection? 6485 
Homework # 4334 6485 
The 01A-71A-10Y-45 chain 6485 
Old valves have more soul! 6484 
Was it soul or soil? 6484 
It was just a heading 6484 
Adjustable color: TIMBRE LOCK? 6484 
Neutral or neutral/uncoloured? 6484 
..are lacking in power, dynamics and bandwidth. 6484 
Timbre-Lock. Not quite ready for prime time. 6484 
Injection of analog dither? 6484 
Subliminal signal 6484 
The idea of analog randomanization. 6484 
Okay, what Avicena Power Generator 6484 
I hope you will be hearing about it. 6483 
Avicenna = Arabian 6483 
Persian, not Arab 6483 
The “second solution” - a major disappointment 6483 
More words to describe "sux" please 6483 
Revolution 6483 
The non-melodramatic DHT? 6483 
One-stage DHTs 6482 
One other thing 6482 
One stage 6482 
Brewing, thinking and heating 6482 
Physical characteristics of electronic devices 6482 
I see the things differently. 6482 
Don't waste time being "creative" 6482 
The audiophile attitude 6482 
The where and why of design choices 6482 
Blah blah blah 6482 
Laconic Clarity vs. Comfort vs. Nostalgia 6482 
Do I need to be hissing? 6482 
...associated with lack of neutrality and colorati... 6482 
John Broskie's Partial feedback amplifier 6482 
Randomness vs. freedom and the Homework # 4334 6481 
What is randomness? 6481 
Those least three possibilities… 6481 
Randomness and Music's Prerogative 6481 
It works, … sort of. The revolution is canceled. 6481 
Thorsten Loesch’s article about DHT SETs 6479 
A Beautiful Mind 6478 
Some summary and conclusions from the first phase. 6476 
Second phase: revising requirement for my DHT objectives. 6461 
Tubes for your DHT amp 6461 
Abandoning Milq? 6461 
Will see how it goes.... 6461 
Single-stage Milq vs. Sun Audio VT-2A3 6459 
Topology and 2A3? 6459 
6SN7-2A3 amps? 6459 
Type Casting 6459 
Sun Audio SV-2A3 6459 
6sn7-2a3 6459 
Topology vs parts 6459 
For a DHT amp, you are listening to the power supply 6459 
The vintage tubes syndrome. 6459 
Parts Frenzy 6459 
Too many new sounds 6459 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6458 
New tubes 6457 
Milq bias vs. batery bias 6457 
The batteries are a tricky thing. 6457 
Swimming the ocean at night? 6457 
New 2A3 6457 
To kill of do not kill the capacitor. 6456 
The JJ Electronic amp. 6455 
JJ 2A3 and amp 6455 
Czech tubes 6453 
Single plated vs Double plated? 6453 
Mono plate 2A3 tubes 6453 
I suggested once VT52 tube 6452 
The 800R vs. 1800R vs. 5500R 6452 
YO-186 as the output tube. 6449 
Here she is. 6448 
Some talks about the new production tubes 6444 
New 2A3 tubes 6444 
Some thoughts about one-IHT vs. multiple-DHT 6444 
The Sun Audio with 6E5P 6443 
Multistage DHT circuits 6442 
Wrong tube or wrong topology – here is the question. 6441 
Emission Labs 2A3 6441 
Some comment and questions about then 2A3 talks. 6441 
Which Chinese 2A3? 6441 
OK, for a first time I like the San Audio Kit. 6441 
The YO186 Strip Show 6441 
More on the 2A3 comparisons 6440 
It will be interesting…. 6440 
OPT impedence 6440 
More about the Plate Loading 6440 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6435 
2A3 data 6435 
The New 2A3 tubes 6435 
How many stages I need for 110dB sensitivity, smal... 6435 
How many stages and why... and who makes that 45 o... 6434 
Everything about everything. 6434 
Some very good points... and... possibly more logi... 6434 
Options, options, options.... 6434 
I think we agree overall 6434 
An IDHT with more gain? 6433 
You don't ask for much now, eh? 6433 
2A3 tube impressions 6428 
Interesting analogy 6428 
NOS 2A3 tubes versus new tubes 6428 
Hmmm, let me try this one again... 6428 
Sylvania 2A3 identification 6428 
A picture is worth a thousand micromhos? 6428 
I have more interest in the period tubes 6428 
Why NOS tubes? 6427 
The Holly Ignorance 6427 
Tube tasting 6427 
The cathodes’ flatulence? 6427 
Make mine thoriated please 6427 
Any Germans out there? 6427 
6E5P VS 6E6P 6427 
Vibrations? What do you with them? 6427 
Vibration in tubes and sounds 6427 
UX4 vs UX4ruskie 6426 
Ringing the tubes? I do not know how about that. 6426 
Tube sound and vibration 6426 
The thoughts collection about YO186? 6420 
The lights look green for the YO tube 6419 
"Melquiades" with YO-186. Something like... 6419 
My version of RE-604 and PX4 6418 
The YO186 tube sockets. 6418 
B4/B5 British made 6417 
The YO186’s sockets and prices 6417 
DHT 2A3 amplifier rectification 6416 
My attitude toward tube rectification. 6416 
Tu-be or not Tu-be, seems Tu-be the question. 6415 
It looks like DHT DSET is shaping up. 6414 
The Sylvania 2A3 NOS report 6411 
The Citizen Kane syndrome. 6411 
Sylvania 2A3 in a World without Color 6410 
Are NOS and new manufacture comparing oranges to o... 6410 
That all is incorrect in a way…. 6410 
NOS vs new 2A3 tubes 6410 
The identical operation environment? 6410 
Preferred 2A3 operating point 6410 
The sound of the 2A3 however? 6410 
Circuit modification for 2A3 optimization 6409 
How to get max power from 2A3 6409 
2A3 voltages, loads and realized output power 6409 
Optimal operation of 2A3: an experiment 6409 
Tubes, Whole Circuits, Expectations and Sound 6409 
Gain is not power. 6409 
2A3 amplifier modification & Optimization 6409 
Specialized DSET approach 6409 
6C33/2A3 DSET? 6409 
SET usable power and making the most of it 6409 
The 2A3 loading 6409 
DSET solution for EdgarHorn? 6409 
Optimizing the 2A3 6409 
How much to DSET a DSET 6409 
DSET for Titan 6409 
The Best of All Worlds 6409 
Multiamp setup 6408 
Optimizing the (NOS) 2A3... "KM-style"? 6408 
There are many opportunities, it all depends what ... 6408 
Modifying amplifer to optimize NOS 2A3 performance 6408 
Conceptualizing Melquiades DSET is done 6402 
2A3 and 400V supply 6402 
Pudding and the chicken wires 6401 
Another shot at numbers 6401 
How to cook the "uninformed" anode. 6401 
Okay, so this might work.... 6401 
The DHT Milq DSET, the prebuilt draft. 6401 
Looks good, but.... 6400 
2A3 with slightly lover filament voltage? 6400 
Less is more... usually. 6400 
Where to burn gain? how? and where to get beter st... 6399 
Stepping Out 6399 
Said to be good, but 6399 
Gain to lose 6399 
Why nothing is simple with this damn amp! 6399 
Another idea for losing gain 6399 
What's best 6399 
Options, options... 6399 
Actually, it is not so bad. 6399 
Other compromises... 6398 
Cathode vs. fixed with DHT 6397 
Is it glowing yet? 6377 
It is comming.... 6377 
The new MF channel. 6371 
I started to work on the Milq’s DHT Island. 6370 
Innerstage loading vs. OPT loading. 6362 
The intestage loading talk. 6359 
My playback feels like it is broken. 6354 
1 in 50? 6354 
Yes, it was after PP2000 6354 
Die Walküre soldering. 6353 
The post Die Walküre soldering 6352 
Another amp arond YO186 6351 
Gain? 6351 
The Unexpected problem with DHT Milq. 6351 
Simple is good 6350 
Ok, I am moving forward. 6350 
The Milq DSET is up. 6349 
My DH DSET – 2 days later. 6347 
Here is more data to reconcile. 6347 
Hm, that is interesting and unpleasant so far. 6346 
Ok, what do I want? 6346 
Let Go of Some Conceptual "Restrictions"? 6346 
The Milq DH DSET, the further thoughts in progress. 6346 
Crunching Numbers; Shaping Sound 6346 
How about the tweeter? 6345 
Tweeter Efficiency? 6345 
Safe and Sound 6345 
More mystery with tweeter but still on the subject. 6345 
Some clarifications. 6345 
How about that?!!! 6345 
Further considerations: DC-coupling. 6343 
Head Room 6343 
To kill the mandatory 13dB 6342 
DC coupling and killing 13db and driving 6e5p miller and.... 6342 
I do not think that it might be damaging… 6342 
Again with the PS 6342 
AKA J.C. Morrison’s amp but… 6340 
Parallel Universe 6340 
Melquiades HD MF DSET, Draft13. 6338 
Why I let other people build them... 6338 
Ok, it's going to right direction. 6338 
Ok, it looks already very close…. 6337 
The Loftinish-Whitish, well sort of…. 6334 
MF: the pre-final version. 6334 
Loftin-White? 6334 
Did anyone hear the PX4 amplifiers? 6334 
What Could use Improving at This Point? 6334 
The Milq’s MF front-end is done 6330 
Why I Let Other People Build Them, II 6330 
Define really quiet 6329 
Another variable of sound 6329 
Backlash? 6329 
Alternative filament supplies 6329 
I kind of faced a problem with AC 6329 
Going down the DC path 6328 
It is not about the “whole sound” but about “molec... 6328 
Molecular sound 6328 
AC-DC heater supply 6328 
The Tentlabs are $10 worth PS. 6328 
The unexpected resolution of AC vs. DC quandary. 6328 
The devil is less scared than it depicted. 6328 
Hiss or Hum 6328 
AC transformers 6328 
I have seen the Promised Land 6327 
OK, the choke noise is not a problem anymore 6327 
Ok, it is working fine but… 6326 
Divide and Conquer 6326 
The design phase is over. 6325 
The unexpected insanity! 6324 
Loading 6324 
Looking for inspiring ideas for 'universal' loadin... 6324 
A filaments Sherlock Holmes wanted. 6324 
Going the Distance 6324 
Read the f*** manual! 6324 
Agreed. 6324 
I agree 6324 
The filament transformer 6324 
Center-tap and options 6324 
Something like this…. 6324 
Avoiding "Dial-an-Amp" 6324 
The foreplay is going on. 6324 
Split balance 6323 
Further thoughts about my DH filaments 6323 
The Shuguang 2A3 tubes. 6323 
SHuguang 6323 
Going through…. 6322 
The 2.5V noise vs. 4V noise. 6321 
More about Shuguang 2A3C 6321 
Hum vs voltage 6321 
Meow about the tubes… 6321 
To Be a Content Cat 6321 
Completed! 6318 
Tradition 6318 
Absolutely beautiful! 6318 
The 'film' caps in PS 6317 
Science or religion 6317 
Mass Extinction 6317 
Electrolytics, technology and time 6317 
No more questions about PS capacitors. 6317 
Capacitor choices 6317 
Good time. Welcome back. Thanks God. 6316 
The minor day of Quartets. 6316 
Them's the Breaks 6316 
Eventually! 6315 
So Soon? 6315 
DHT MF channel and 6-ch amp: first conclusions 6315 
All Abuzz about Nothing 6314 
The wire for DC-coupling 6314 
The Dirt on DIY Backlash 6314 
DSET vs. the “better tubes”. 6314 
How to test the DH tubes properly? 6313 
Pairing up tubes for SE use 6312 
The DHT live reserve 6311 
Some interestng models 6311 
Eaten alive. 6311 
The tubey déjà vu? 6310 
The new concept of my output transformer. 6306 
The 4V takes a lead. 6302 
Listening the DH and the striped down version of M... 6299 
I kind of slowly learn what I need. 6299 
More HF from a transformer and DHT? 6297 
Since You Don't Need the Gain 6296 
Exiting the design mode? 6296 
Bye-bye the input divider on MF! 6296 
A few steps back and a gaint leap ahead. 6292 
Single-stage vs. DHT amp. 6291 
Setting up the new Playback 6290 
And the winner is… so far 6287 
If you like type 45... 6287 
Type 45... they're not all the same 6287 
Favorite Flavor? 6287 
The 45 times Meow... 6287 
The problem that I see is… 6287 
Running the 45 6287 
The 10Y...and bye bye Newton 6286 
The commentaries about everything. 6286 
Driver tube and biasing 6286 
DHT drivers 6286 
The ideas are worth trying? 6286 
A question about the polishing the things…. 6282 
The Particular Tube, I'm afraid... 6282 
Driving the 45... cathode first 6281 
ST or Globe; old or new... 6281 
Whatever sticks to the wall as an operation point ... 6281 
The attenuating crap in secondary. 6281 
Operating points and cathode current 6281 
The Burgeoning Opportunities! 6281 
Actually it is not so simple. 6281 
Resistors at the front 6280 
A minor alternation of a position 6280 
The era of enlightenment. 6277 
The devil is in the details.... 6277 
Constructing Sound 6277 
A new view on the DHT evaluation. 6276 
The “strange” YO186 6267 
The dead guy’s lessons. 6222 
2S4S and 2A3 6213 
Ho to use the YO186 6206 
YO 186 fundamental flavor 6206 
The YO-YO tube and "fundamentals" channel 6206 
The live without the YO186, again.... 6204 
Not anymore! 6193 
The very good YoYonisation! 6192 
….above and below two very clean channel. 6191 
The DHT and esoteric imaging deformation. 6178 
DHT, YO186, or??? 6178 
I had no idea how ‘different’ it is. 6125 
The Kazitsky Manufacturing and YO104, some history. 6124 
"Absolution and Eternal Refuge." 6121 
Sofia Electric Type 45 Mesh 6111 
The true association of YO186's Sounds. 5873 
All the Best from Burgundy 5873 
Cheesy tubes 5872 
Me and my DHT references… 5763 
Y0-186 in winter. 5666 
Y0-186 sounds like… 5665 
Rethinking the YO186 tube. 5634 
In My Dreams 5634 
Grunt from type 45? A ridicules comment. 5634 
Blame? 5633 
When good is not good enough. 5633 
45s, Drivers, and 45s 5633 
Hm, that was so simple after all! 5632 
How the YO186 was used. 5216 
What is old is new? 5215 
YO186 vs. type 45. 5214 
The YO186 is gone.... :-( 4763 
That sucks. 4763 
YO186 4761 
Hm, what the hell is going on? 4761 
I do not think that anybody but me would like YO186 4761 
A hallucination? 4758 
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