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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 6522 
One-stage Milq++ and the DHT's alleged tone 6521 
DHT Milq? 6521 
The DHT journey. 6521 
DHT tone 6521 
Well, why not? 6520 
Holding the Fort 6520 
My DHT experiment: Preface 6520 
Input tube and DC heaters 6519 
Reimyo Pat 777 6519 
My DHT experiment: Observations 6515 
DHT or 300B? 6515 
300B 6515 
Talking, perception and the grounds for objectively 6515 
The Wine Via the Wine Glass 6514 
Hence the confusion 6514 
My DHT experiment: some conclusions. 6514 
Reality Reconstruction is not a functionality. 6514 
My experience with DHTs 6514 
Pigmented coloration? 6514 
Dht-dht 6514 
Dynamic viscosity? 6514 
The Pallette preamp... 6514 
If one DHT is good, two must be better? 6514 
"soul" of tubes 6514 
There is a difference... 6514 
Vibration injection? 6514 
Homework # 4334 6514 
The 01A-71A-10Y-45 chain 6514 
Old valves have more soul! 6513 
Was it soul or soil? 6513 
It was just a heading 6513 
Adjustable color: TIMBRE LOCK? 6513 
Neutral or neutral/uncoloured? 6513 
..are lacking in power, dynamics and bandwidth. 6513 
Timbre-Lock. Not quite ready for prime time. 6513 
Injection of analog dither? 6513 
Subliminal signal 6513 
The idea of analog randomanization. 6513 
Okay, what Avicena Power Generator 6513 
I hope you will be hearing about it. 6512 
Avicenna = Arabian 6512 
Persian, not Arab 6512 
The “second solution” - a major disappointment 6512 
More words to describe "sux" please 6512 
Revolution 6512 
The non-melodramatic DHT? 6512 
One-stage DHTs 6511 
One other thing 6511 
One stage 6511 
Brewing, thinking and heating 6511 
Physical characteristics of electronic devices 6511 
I see the things differently. 6511 
Don't waste time being "creative" 6511 
The audiophile attitude 6511 
The where and why of design choices 6511 
Blah blah blah 6511 
Laconic Clarity vs. Comfort vs. Nostalgia 6511 
Do I need to be hissing? 6511 
...associated with lack of neutrality and colorati... 6511 
John Broskie's Partial feedback amplifier 6511 
Randomness vs. freedom and the Homework # 4334 6510 
What is randomness? 6510 
Those least three possibilities… 6510 
Randomness and Music's Prerogative 6510 
It works, … sort of. The revolution is canceled. 6510 
Thorsten Loesch’s article about DHT SETs 6508 
A Beautiful Mind 6507 
Some summary and conclusions from the first phase. 6505 
Second phase: revising requirement for my DHT objectives. 6490 
Tubes for your DHT amp 6490 
Abandoning Milq? 6490 
Will see how it goes.... 6490 
Single-stage Milq vs. Sun Audio VT-2A3 6488 
Topology and 2A3? 6488 
6SN7-2A3 amps? 6488 
Type Casting 6488 
Sun Audio SV-2A3 6488 
6sn7-2a3 6488 
Topology vs parts 6488 
For a DHT amp, you are listening to the power supply 6488 
The vintage tubes syndrome. 6488 
Parts Frenzy 6488 
Too many new sounds 6488 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6487 
New tubes 6486 
Milq bias vs. batery bias 6486 
The batteries are a tricky thing. 6486 
Swimming the ocean at night? 6486 
New 2A3 6486 
To kill of do not kill the capacitor. 6485 
The JJ Electronic amp. 6484 
JJ 2A3 and amp 6484 
Czech tubes 6482 
Single plated vs Double plated? 6482 
Mono plate 2A3 tubes 6482 
I suggested once VT52 tube 6481 
The 800R vs. 1800R vs. 5500R 6481 
YO-186 as the output tube. 6478 
Here she is. 6477 
Some talks about the new production tubes 6473 
New 2A3 tubes 6473 
Some thoughts about one-IHT vs. multiple-DHT 6473 
The Sun Audio with 6E5P 6472 
Multistage DHT circuits 6471 
Wrong tube or wrong topology – here is the question. 6470 
Emission Labs 2A3 6470 
Some comment and questions about then 2A3 talks. 6470 
Which Chinese 2A3? 6470 
OK, for a first time I like the San Audio Kit. 6470 
The YO186 Strip Show 6470 
More on the 2A3 comparisons 6469 
It will be interesting…. 6469 
OPT impedence 6469 
More about the Plate Loading 6469 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6464 
2A3 data 6464 
The New 2A3 tubes 6464 
How many stages I need for 110dB sensitivity, smal... 6464 
How many stages and why... and who makes that 45 o... 6463 
Everything about everything. 6463 
Some very good points... and... possibly more logi... 6463 
Options, options, options.... 6463 
I think we agree overall 6463 
An IDHT with more gain? 6462 
You don't ask for much now, eh? 6462 
2A3 tube impressions 6457 
Interesting analogy 6457 
NOS 2A3 tubes versus new tubes 6457 
Hmmm, let me try this one again... 6457 
Sylvania 2A3 identification 6457 
A picture is worth a thousand micromhos? 6457 
I have more interest in the period tubes 6457 
Why NOS tubes? 6456 
The Holly Ignorance 6456 
Tube tasting 6456 
The cathodes’ flatulence? 6456 
Make mine thoriated please 6456 
Any Germans out there? 6456 
6E5P VS 6E6P 6456 
Vibrations? What do you with them? 6456 
Vibration in tubes and sounds 6456 
UX4 vs UX4ruskie 6455 
Ringing the tubes? I do not know how about that. 6455 
Tube sound and vibration 6455 
The thoughts collection about YO186? 6449 
The lights look green for the YO tube 6448 
"Melquiades" with YO-186. Something like... 6448 
My version of RE-604 and PX4 6447 
The YO186 tube sockets. 6447 
B4/B5 British made 6446 
The YO186’s sockets and prices 6446 
DHT 2A3 amplifier rectification 6445 
My attitude toward tube rectification. 6445 
Tu-be or not Tu-be, seems Tu-be the question. 6444 
It looks like DHT DSET is shaping up. 6443 
The Sylvania 2A3 NOS report 6440 
The Citizen Kane syndrome. 6440 
Sylvania 2A3 in a World without Color 6439 
Are NOS and new manufacture comparing oranges to o... 6439 
That all is incorrect in a way…. 6439 
NOS vs new 2A3 tubes 6439 
The identical operation environment? 6439 
Preferred 2A3 operating point 6439 
The sound of the 2A3 however? 6439 
Circuit modification for 2A3 optimization 6438 
How to get max power from 2A3 6438 
2A3 voltages, loads and realized output power 6438 
Optimal operation of 2A3: an experiment 6438 
Tubes, Whole Circuits, Expectations and Sound 6438 
Gain is not power. 6438 
2A3 amplifier modification & Optimization 6438 
Specialized DSET approach 6438 
6C33/2A3 DSET? 6438 
SET usable power and making the most of it 6438 
The 2A3 loading 6438 
DSET solution for EdgarHorn? 6438 
Optimizing the 2A3 6438 
How much to DSET a DSET 6438 
DSET for Titan 6438 
The Best of All Worlds 6438 
Multiamp setup 6437 
Optimizing the (NOS) 2A3... "KM-style"? 6437 
There are many opportunities, it all depends what ... 6437 
Modifying amplifer to optimize NOS 2A3 performance 6437 
Conceptualizing Melquiades DSET is done 6431 
2A3 and 400V supply 6431 
Pudding and the chicken wires 6430 
Another shot at numbers 6430 
How to cook the "uninformed" anode. 6430 
Okay, so this might work.... 6430 
The DHT Milq DSET, the prebuilt draft. 6430 
Looks good, but.... 6429 
2A3 with slightly lover filament voltage? 6429 
Less is more... usually. 6429 
Where to burn gain? how? and where to get beter st... 6428 
Stepping Out 6428 
Said to be good, but 6428 
Gain to lose 6428 
Why nothing is simple with this damn amp! 6428 
Another idea for losing gain 6428 
What's best 6428 
Options, options... 6428 
Actually, it is not so bad. 6428 
Other compromises... 6427 
Cathode vs. fixed with DHT 6426 
Is it glowing yet? 6406 
It is comming.... 6406 
The new MF channel. 6400 
I started to work on the Milq’s DHT Island. 6399 
Innerstage loading vs. OPT loading. 6391 
The intestage loading talk. 6388 
My playback feels like it is broken. 6383 
1 in 50? 6383 
Yes, it was after PP2000 6383 
Die Walküre soldering. 6382 
The post Die Walküre soldering 6381 
Another amp arond YO186 6380 
Gain? 6380 
The Unexpected problem with DHT Milq. 6380 
Simple is good 6379 
Ok, I am moving forward. 6379 
The Milq DSET is up. 6378 
My DH DSET – 2 days later. 6376 
Here is more data to reconcile. 6376 
Hm, that is interesting and unpleasant so far. 6375 
Ok, what do I want? 6375 
Let Go of Some Conceptual "Restrictions"? 6375 
The Milq DH DSET, the further thoughts in progress. 6375 
Crunching Numbers; Shaping Sound 6375 
How about the tweeter? 6374 
Tweeter Efficiency? 6374 
Safe and Sound 6374 
More mystery with tweeter but still on the subject. 6374 
Some clarifications. 6374 
How about that?!!! 6374 
Further considerations: DC-coupling. 6372 
Head Room 6372 
To kill the mandatory 13dB 6371 
DC coupling and killing 13db and driving 6e5p miller and.... 6371 
I do not think that it might be damaging… 6371 
Again with the PS 6371 
AKA J.C. Morrison’s amp but… 6369 
Parallel Universe 6369 
Melquiades HD MF DSET, Draft13. 6367 
Why I let other people build them... 6367 
Ok, it's going to right direction. 6367 
Ok, it looks already very close…. 6366 
The Loftinish-Whitish, well sort of…. 6363 
MF: the pre-final version. 6363 
Loftin-White? 6363 
Did anyone hear the PX4 amplifiers? 6363 
What Could use Improving at This Point? 6363 
The Milq’s MF front-end is done 6359 
Why I Let Other People Build Them, II 6359 
Define really quiet 6358 
Another variable of sound 6358 
Backlash? 6358 
Alternative filament supplies 6358 
I kind of faced a problem with AC 6358 
Going down the DC path 6357 
It is not about the “whole sound” but about “molec... 6357 
Molecular sound 6357 
AC-DC heater supply 6357 
The Tentlabs are $10 worth PS. 6357 
The unexpected resolution of AC vs. DC quandary. 6357 
The devil is less scared than it depicted. 6357 
Hiss or Hum 6357 
AC transformers 6357 
I have seen the Promised Land 6356 
OK, the choke noise is not a problem anymore 6356 
Ok, it is working fine but… 6355 
Divide and Conquer 6355 
The design phase is over. 6354 
The unexpected insanity! 6353 
Loading 6353 
Looking for inspiring ideas for 'universal' loadin... 6353 
A filaments Sherlock Holmes wanted. 6353 
Going the Distance 6353 
Read the f*** manual! 6353 
Agreed. 6353 
I agree 6353 
The filament transformer 6353 
Center-tap and options 6353 
Something like this…. 6353 
Avoiding "Dial-an-Amp" 6353 
The foreplay is going on. 6353 
Split balance 6352 
Further thoughts about my DH filaments 6352 
The Shuguang 2A3 tubes. 6352 
SHuguang 6352 
Going through…. 6351 
The 2.5V noise vs. 4V noise. 6350 
More about Shuguang 2A3C 6350 
Hum vs voltage 6350 
Meow about the tubes… 6350 
To Be a Content Cat 6350 
Completed! 6347 
Tradition 6347 
Absolutely beautiful! 6347 
The 'film' caps in PS 6346 
Science or religion 6346 
Mass Extinction 6346 
Electrolytics, technology and time 6346 
No more questions about PS capacitors. 6346 
Capacitor choices 6346 
Good time. Welcome back. Thanks God. 6345 
The minor day of Quartets. 6345 
Them's the Breaks 6345 
Eventually! 6344 
So Soon? 6344 
DHT MF channel and 6-ch amp: first conclusions 6344 
All Abuzz about Nothing 6343 
The wire for DC-coupling 6343 
The Dirt on DIY Backlash 6343 
DSET vs. the “better tubes”. 6343 
How to test the DH tubes properly? 6342 
Pairing up tubes for SE use 6341 
The DHT live reserve 6340 
Some interestng models 6340 
Eaten alive. 6340 
The tubey déjà vu? 6339 
The new concept of my output transformer. 6335 
The 4V takes a lead. 6331 
Listening the DH and the striped down version of M... 6328 
I kind of slowly learn what I need. 6328 
More HF from a transformer and DHT? 6326 
Since You Don't Need the Gain 6325 
Exiting the design mode? 6325 
Bye-bye the input divider on MF! 6325 
A few steps back and a gaint leap ahead. 6321 
Single-stage vs. DHT amp. 6320 
Setting up the new Playback 6319 
And the winner is… so far 6316 
If you like type 45... 6316 
Type 45... they're not all the same 6316 
Favorite Flavor? 6316 
The 45 times Meow... 6316 
The problem that I see is… 6316 
Running the 45 6316 
The 10Y...and bye bye Newton 6315 
The commentaries about everything. 6315 
Driver tube and biasing 6315 
DHT drivers 6315 
The ideas are worth trying? 6315 
A question about the polishing the things…. 6311 
The Particular Tube, I'm afraid... 6311 
Driving the 45... cathode first 6310 
ST or Globe; old or new... 6310 
Whatever sticks to the wall as an operation point ... 6310 
The attenuating crap in secondary. 6310 
Operating points and cathode current 6310 
The Burgeoning Opportunities! 6310 
Actually it is not so simple. 6310 
Resistors at the front 6309 
A minor alternation of a position 6309 
The era of enlightenment. 6306 
The devil is in the details.... 6306 
Constructing Sound 6306 
A new view on the DHT evaluation. 6305 
The “strange” YO186 6296 
The dead guy’s lessons. 6251 
2S4S and 2A3 6242 
Ho to use the YO186 6235 
YO 186 fundamental flavor 6235 
The YO-YO tube and "fundamentals" channel 6235 
The live without the YO186, again.... 6233 
Not anymore! 6222 
The very good YoYonisation! 6221 
….above and below two very clean channel. 6220 
The DHT and esoteric imaging deformation. 6207 
DHT, YO186, or??? 6207 
I had no idea how ‘different’ it is. 6154 
The Kazitsky Manufacturing and YO104, some history. 6153 
"Absolution and Eternal Refuge." 6150 
Sofia Electric Type 45 Mesh 6140 
The true association of YO186's Sounds. 5902 
All the Best from Burgundy 5902 
Cheesy tubes 5901 
Me and my DHT references… 5792 
Y0-186 in winter. 5695 
Y0-186 sounds like… 5694 
Rethinking the YO186 tube. 5663 
In My Dreams 5663 
Grunt from type 45? A ridicules comment. 5663 
Blame? 5662 
When good is not good enough. 5662 
45s, Drivers, and 45s 5662 
Hm, that was so simple after all! 5661 
How the YO186 was used. 5245 
What is old is new? 5244 
YO186 vs. type 45. 5243 
The YO186 is gone.... :-( 4792 
That sucks. 4792 
YO186 4790 
Hm, what the hell is going on? 4790 
I do not think that anybody but me would like YO186 4790 
A hallucination? 4787 
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