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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 6552 
One-stage Milq++ and the DHT's alleged tone 6551 
DHT Milq? 6551 
The DHT journey. 6551 
DHT tone 6551 
Well, why not? 6550 
Holding the Fort 6550 
My DHT experiment: Preface 6550 
Input tube and DC heaters 6549 
Reimyo Pat 777 6549 
My DHT experiment: Observations 6545 
DHT or 300B? 6545 
300B 6545 
Talking, perception and the grounds for objectively 6545 
The Wine Via the Wine Glass 6544 
Hence the confusion 6544 
My DHT experiment: some conclusions. 6544 
Reality Reconstruction is not a functionality. 6544 
My experience with DHTs 6544 
Pigmented coloration? 6544 
Dht-dht 6544 
Dynamic viscosity? 6544 
The Pallette preamp... 6544 
If one DHT is good, two must be better? 6544 
"soul" of tubes 6544 
There is a difference... 6544 
Vibration injection? 6544 
Homework # 4334 6544 
The 01A-71A-10Y-45 chain 6544 
Old valves have more soul! 6543 
Was it soul or soil? 6543 
It was just a heading 6543 
Adjustable color: TIMBRE LOCK? 6543 
Neutral or neutral/uncoloured? 6543 
..are lacking in power, dynamics and bandwidth. 6543 
Timbre-Lock. Not quite ready for prime time. 6543 
Injection of analog dither? 6543 
Subliminal signal 6543 
The idea of analog randomanization. 6543 
Okay, what Avicena Power Generator 6543 
I hope you will be hearing about it. 6542 
Avicenna = Arabian 6542 
Persian, not Arab 6542 
The “second solution” - a major disappointment 6542 
More words to describe "sux" please 6542 
Revolution 6542 
The non-melodramatic DHT? 6542 
One-stage DHTs 6541 
One other thing 6541 
One stage 6541 
Brewing, thinking and heating 6541 
Physical characteristics of electronic devices 6541 
I see the things differently. 6541 
Don't waste time being "creative" 6541 
The audiophile attitude 6541 
The where and why of design choices 6541 
Blah blah blah 6541 
Laconic Clarity vs. Comfort vs. Nostalgia 6541 
Do I need to be hissing? 6541 
...associated with lack of neutrality and colorati... 6541 
John Broskie's Partial feedback amplifier 6541 
Randomness vs. freedom and the Homework # 4334 6540 
What is randomness? 6540 
Those least three possibilities… 6540 
Randomness and Music's Prerogative 6540 
It works, … sort of. The revolution is canceled. 6540 
Thorsten Loesch’s article about DHT SETs 6538 
A Beautiful Mind 6537 
Some summary and conclusions from the first phase. 6535 
Second phase: revising requirement for my DHT objectives. 6520 
Tubes for your DHT amp 6520 
Abandoning Milq? 6520 
Will see how it goes.... 6520 
Single-stage Milq vs. Sun Audio VT-2A3 6518 
Topology and 2A3? 6518 
6SN7-2A3 amps? 6518 
Type Casting 6518 
Sun Audio SV-2A3 6518 
6sn7-2a3 6518 
Topology vs parts 6518 
For a DHT amp, you are listening to the power supply 6518 
The vintage tubes syndrome. 6518 
Parts Frenzy 6518 
Too many new sounds 6518 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6517 
New tubes 6516 
Milq bias vs. batery bias 6516 
The batteries are a tricky thing. 6516 
Swimming the ocean at night? 6516 
New 2A3 6516 
To kill of do not kill the capacitor. 6515 
The JJ Electronic amp. 6514 
JJ 2A3 and amp 6514 
Czech tubes 6512 
Single plated vs Double plated? 6512 
Mono plate 2A3 tubes 6512 
I suggested once VT52 tube 6511 
The 800R vs. 1800R vs. 5500R 6511 
YO-186 as the output tube. 6508 
Here she is. 6507 
Some talks about the new production tubes 6503 
New 2A3 tubes 6503 
Some thoughts about one-IHT vs. multiple-DHT 6503 
The Sun Audio with 6E5P 6502 
Multistage DHT circuits 6501 
Wrong tube or wrong topology – here is the question. 6500 
Emission Labs 2A3 6500 
Some comment and questions about then 2A3 talks. 6500 
Which Chinese 2A3? 6500 
OK, for a first time I like the San Audio Kit. 6500 
The YO186 Strip Show 6500 
More on the 2A3 comparisons 6499 
It will be interesting…. 6499 
OPT impedence 6499 
More about the Plate Loading 6499 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6494 
2A3 data 6494 
The New 2A3 tubes 6494 
How many stages I need for 110dB sensitivity, smal... 6494 
How many stages and why... and who makes that 45 o... 6493 
Everything about everything. 6493 
Some very good points... and... possibly more logi... 6493 
Options, options, options.... 6493 
I think we agree overall 6493 
An IDHT with more gain? 6492 
You don't ask for much now, eh? 6492 
2A3 tube impressions 6487 
Interesting analogy 6487 
NOS 2A3 tubes versus new tubes 6487 
Hmmm, let me try this one again... 6487 
Sylvania 2A3 identification 6487 
A picture is worth a thousand micromhos? 6487 
I have more interest in the period tubes 6487 
Why NOS tubes? 6486 
The Holly Ignorance 6486 
Tube tasting 6486 
The cathodes’ flatulence? 6486 
Make mine thoriated please 6486 
Any Germans out there? 6486 
6E5P VS 6E6P 6486 
Vibrations? What do you with them? 6486 
Vibration in tubes and sounds 6486 
UX4 vs UX4ruskie 6485 
Ringing the tubes? I do not know how about that. 6485 
Tube sound and vibration 6485 
The thoughts collection about YO186? 6479 
The lights look green for the YO tube 6478 
"Melquiades" with YO-186. Something like... 6478 
My version of RE-604 and PX4 6477 
The YO186 tube sockets. 6477 
B4/B5 British made 6476 
The YO186’s sockets and prices 6476 
DHT 2A3 amplifier rectification 6475 
My attitude toward tube rectification. 6475 
Tu-be or not Tu-be, seems Tu-be the question. 6474 
It looks like DHT DSET is shaping up. 6473 
The Sylvania 2A3 NOS report 6470 
The Citizen Kane syndrome. 6470 
Sylvania 2A3 in a World without Color 6469 
Are NOS and new manufacture comparing oranges to o... 6469 
That all is incorrect in a way…. 6469 
NOS vs new 2A3 tubes 6469 
The identical operation environment? 6469 
Preferred 2A3 operating point 6469 
The sound of the 2A3 however? 6469 
Circuit modification for 2A3 optimization 6468 
How to get max power from 2A3 6468 
2A3 voltages, loads and realized output power 6468 
Optimal operation of 2A3: an experiment 6468 
Tubes, Whole Circuits, Expectations and Sound 6468 
Gain is not power. 6468 
2A3 amplifier modification & Optimization 6468 
Specialized DSET approach 6468 
6C33/2A3 DSET? 6468 
SET usable power and making the most of it 6468 
The 2A3 loading 6468 
DSET solution for EdgarHorn? 6468 
Optimizing the 2A3 6468 
How much to DSET a DSET 6468 
DSET for Titan 6468 
The Best of All Worlds 6468 
Multiamp setup 6467 
Optimizing the (NOS) 2A3... "KM-style"? 6467 
There are many opportunities, it all depends what ... 6467 
Modifying amplifer to optimize NOS 2A3 performance 6467 
Conceptualizing Melquiades DSET is done 6461 
2A3 and 400V supply 6461 
Pudding and the chicken wires 6460 
Another shot at numbers 6460 
How to cook the "uninformed" anode. 6460 
Okay, so this might work.... 6460 
The DHT Milq DSET, the prebuilt draft. 6460 
Looks good, but.... 6459 
2A3 with slightly lover filament voltage? 6459 
Less is more... usually. 6459 
Where to burn gain? how? and where to get beter st... 6458 
Stepping Out 6458 
Said to be good, but 6458 
Gain to lose 6458 
Why nothing is simple with this damn amp! 6458 
Another idea for losing gain 6458 
What's best 6458 
Options, options... 6458 
Actually, it is not so bad. 6458 
Other compromises... 6457 
Cathode vs. fixed with DHT 6456 
Is it glowing yet? 6436 
It is comming.... 6436 
The new MF channel. 6430 
I started to work on the Milq’s DHT Island. 6429 
Innerstage loading vs. OPT loading. 6421 
The intestage loading talk. 6418 
My playback feels like it is broken. 6413 
1 in 50? 6413 
Yes, it was after PP2000 6413 
Die Walküre soldering. 6412 
The post Die Walküre soldering 6411 
Another amp arond YO186 6410 
Gain? 6410 
The Unexpected problem with DHT Milq. 6410 
Simple is good 6409 
Ok, I am moving forward. 6409 
The Milq DSET is up. 6408 
My DH DSET – 2 days later. 6406 
Here is more data to reconcile. 6406 
Hm, that is interesting and unpleasant so far. 6405 
Ok, what do I want? 6405 
Let Go of Some Conceptual "Restrictions"? 6405 
The Milq DH DSET, the further thoughts in progress. 6405 
Crunching Numbers; Shaping Sound 6405 
How about the tweeter? 6404 
Tweeter Efficiency? 6404 
Safe and Sound 6404 
More mystery with tweeter but still on the subject. 6404 
Some clarifications. 6404 
How about that?!!! 6404 
Further considerations: DC-coupling. 6402 
Head Room 6402 
To kill the mandatory 13dB 6401 
DC coupling and killing 13db and driving 6e5p miller and.... 6401 
I do not think that it might be damaging… 6401 
Again with the PS 6401 
AKA J.C. Morrison’s amp but… 6399 
Parallel Universe 6399 
Melquiades HD MF DSET, Draft13. 6397 
Why I let other people build them... 6397 
Ok, it's going to right direction. 6397 
Ok, it looks already very close…. 6396 
The Loftinish-Whitish, well sort of…. 6393 
MF: the pre-final version. 6393 
Loftin-White? 6393 
Did anyone hear the PX4 amplifiers? 6393 
What Could use Improving at This Point? 6393 
The Milq’s MF front-end is done 6389 
Why I Let Other People Build Them, II 6389 
Define really quiet 6388 
Another variable of sound 6388 
Backlash? 6388 
Alternative filament supplies 6388 
I kind of faced a problem with AC 6388 
Going down the DC path 6387 
It is not about the “whole sound” but about “molec... 6387 
Molecular sound 6387 
AC-DC heater supply 6387 
The Tentlabs are $10 worth PS. 6387 
The unexpected resolution of AC vs. DC quandary. 6387 
The devil is less scared than it depicted. 6387 
Hiss or Hum 6387 
AC transformers 6387 
I have seen the Promised Land 6386 
OK, the choke noise is not a problem anymore 6386 
Ok, it is working fine but… 6385 
Divide and Conquer 6385 
The design phase is over. 6384 
The unexpected insanity! 6383 
Loading 6383 
Looking for inspiring ideas for 'universal' loadin... 6383 
A filaments Sherlock Holmes wanted. 6383 
Going the Distance 6383 
Read the f*** manual! 6383 
Agreed. 6383 
I agree 6383 
The filament transformer 6383 
Center-tap and options 6383 
Something like this…. 6383 
Avoiding "Dial-an-Amp" 6383 
The foreplay is going on. 6383 
Split balance 6382 
Further thoughts about my DH filaments 6382 
The Shuguang 2A3 tubes. 6382 
SHuguang 6382 
Going through…. 6381 
The 2.5V noise vs. 4V noise. 6380 
More about Shuguang 2A3C 6380 
Hum vs voltage 6380 
Meow about the tubes… 6380 
To Be a Content Cat 6380 
Completed! 6377 
Tradition 6377 
Absolutely beautiful! 6377 
The 'film' caps in PS 6376 
Science or religion 6376 
Mass Extinction 6376 
Electrolytics, technology and time 6376 
No more questions about PS capacitors. 6376 
Capacitor choices 6376 
Good time. Welcome back. Thanks God. 6375 
The minor day of Quartets. 6375 
Them's the Breaks 6375 
Eventually! 6374 
So Soon? 6374 
DHT MF channel and 6-ch amp: first conclusions 6374 
All Abuzz about Nothing 6373 
The wire for DC-coupling 6373 
The Dirt on DIY Backlash 6373 
DSET vs. the “better tubes”. 6373 
How to test the DH tubes properly? 6372 
Pairing up tubes for SE use 6371 
The DHT live reserve 6370 
Some interestng models 6370 
Eaten alive. 6370 
The tubey déjà vu? 6369 
The new concept of my output transformer. 6365 
The 4V takes a lead. 6361 
Listening the DH and the striped down version of M... 6358 
I kind of slowly learn what I need. 6358 
More HF from a transformer and DHT? 6356 
Since You Don't Need the Gain 6355 
Exiting the design mode? 6355 
Bye-bye the input divider on MF! 6355 
A few steps back and a gaint leap ahead. 6351 
Single-stage vs. DHT amp. 6350 
Setting up the new Playback 6349 
And the winner is… so far 6346 
If you like type 45... 6346 
Type 45... they're not all the same 6346 
Favorite Flavor? 6346 
The 45 times Meow... 6346 
The problem that I see is… 6346 
Running the 45 6346 
The 10Y...and bye bye Newton 6345 
The commentaries about everything. 6345 
Driver tube and biasing 6345 
DHT drivers 6345 
The ideas are worth trying? 6345 
A question about the polishing the things…. 6341 
The Particular Tube, I'm afraid... 6341 
Driving the 45... cathode first 6340 
ST or Globe; old or new... 6340 
Whatever sticks to the wall as an operation point ... 6340 
The attenuating crap in secondary. 6340 
Operating points and cathode current 6340 
The Burgeoning Opportunities! 6340 
Actually it is not so simple. 6340 
Resistors at the front 6339 
A minor alternation of a position 6339 
The era of enlightenment. 6336 
The devil is in the details.... 6336 
Constructing Sound 6336 
A new view on the DHT evaluation. 6335 
The “strange” YO186 6326 
The dead guy’s lessons. 6281 
2S4S and 2A3 6272 
Ho to use the YO186 6265 
YO 186 fundamental flavor 6265 
The YO-YO tube and "fundamentals" channel 6265 
The live without the YO186, again.... 6263 
Not anymore! 6252 
The very good YoYonisation! 6251 
….above and below two very clean channel. 6250 
The DHT and esoteric imaging deformation. 6237 
DHT, YO186, or??? 6237 
I had no idea how ‘different’ it is. 6184 
The Kazitsky Manufacturing and YO104, some history. 6183 
"Absolution and Eternal Refuge." 6180 
Sofia Electric Type 45 Mesh 6170 
The true association of YO186's Sounds. 5932 
All the Best from Burgundy 5932 
Cheesy tubes 5931 
Me and my DHT references… 5822 
Y0-186 in winter. 5725 
Y0-186 sounds like… 5724 
Rethinking the YO186 tube. 5693 
In My Dreams 5693 
Grunt from type 45? A ridicules comment. 5693 
Blame? 5692 
When good is not good enough. 5692 
45s, Drivers, and 45s 5692 
Hm, that was so simple after all! 5691 
How the YO186 was used. 5275 
What is old is new? 5274 
YO186 vs. type 45. 5273 
The YO186 is gone.... :-( 4822 
That sucks. 4822 
YO186 4820 
Hm, what the hell is going on? 4820 
I do not think that anybody but me would like YO186 4820 
A hallucination? 4817 
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