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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 6537 
One-stage Milq++ and the DHT's alleged tone 6536 
DHT Milq? 6536 
The DHT journey. 6536 
DHT tone 6536 
Well, why not? 6535 
Holding the Fort 6535 
My DHT experiment: Preface 6535 
Input tube and DC heaters 6534 
Reimyo Pat 777 6534 
My DHT experiment: Observations 6530 
DHT or 300B? 6530 
300B 6530 
Talking, perception and the grounds for objectively 6530 
The Wine Via the Wine Glass 6529 
Hence the confusion 6529 
My DHT experiment: some conclusions. 6529 
Reality Reconstruction is not a functionality. 6529 
My experience with DHTs 6529 
Pigmented coloration? 6529 
Dht-dht 6529 
Dynamic viscosity? 6529 
The Pallette preamp... 6529 
If one DHT is good, two must be better? 6529 
"soul" of tubes 6529 
There is a difference... 6529 
Vibration injection? 6529 
Homework # 4334 6529 
The 01A-71A-10Y-45 chain 6529 
Old valves have more soul! 6528 
Was it soul or soil? 6528 
It was just a heading 6528 
Adjustable color: TIMBRE LOCK? 6528 
Neutral or neutral/uncoloured? 6528 
..are lacking in power, dynamics and bandwidth. 6528 
Timbre-Lock. Not quite ready for prime time. 6528 
Injection of analog dither? 6528 
Subliminal signal 6528 
The idea of analog randomanization. 6528 
Okay, what Avicena Power Generator 6528 
I hope you will be hearing about it. 6527 
Avicenna = Arabian 6527 
Persian, not Arab 6527 
The “second solution” - a major disappointment 6527 
More words to describe "sux" please 6527 
Revolution 6527 
The non-melodramatic DHT? 6527 
One-stage DHTs 6526 
One other thing 6526 
One stage 6526 
Brewing, thinking and heating 6526 
Physical characteristics of electronic devices 6526 
I see the things differently. 6526 
Don't waste time being "creative" 6526 
The audiophile attitude 6526 
The where and why of design choices 6526 
Blah blah blah 6526 
Laconic Clarity vs. Comfort vs. Nostalgia 6526 
Do I need to be hissing? 6526 
...associated with lack of neutrality and colorati... 6526 
John Broskie's Partial feedback amplifier 6526 
Randomness vs. freedom and the Homework # 4334 6525 
What is randomness? 6525 
Those least three possibilities… 6525 
Randomness and Music's Prerogative 6525 
It works, … sort of. The revolution is canceled. 6525 
Thorsten Loesch’s article about DHT SETs 6523 
A Beautiful Mind 6522 
Some summary and conclusions from the first phase. 6520 
Second phase: revising requirement for my DHT objectives. 6505 
Tubes for your DHT amp 6505 
Abandoning Milq? 6505 
Will see how it goes.... 6505 
Single-stage Milq vs. Sun Audio VT-2A3 6503 
Topology and 2A3? 6503 
6SN7-2A3 amps? 6503 
Type Casting 6503 
Sun Audio SV-2A3 6503 
6sn7-2a3 6503 
Topology vs parts 6503 
For a DHT amp, you are listening to the power supply 6503 
The vintage tubes syndrome. 6503 
Parts Frenzy 6503 
Too many new sounds 6503 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6502 
New tubes 6501 
Milq bias vs. batery bias 6501 
The batteries are a tricky thing. 6501 
Swimming the ocean at night? 6501 
New 2A3 6501 
To kill of do not kill the capacitor. 6500 
The JJ Electronic amp. 6499 
JJ 2A3 and amp 6499 
Czech tubes 6497 
Single plated vs Double plated? 6497 
Mono plate 2A3 tubes 6497 
I suggested once VT52 tube 6496 
The 800R vs. 1800R vs. 5500R 6496 
YO-186 as the output tube. 6493 
Here she is. 6492 
Some talks about the new production tubes 6488 
New 2A3 tubes 6488 
Some thoughts about one-IHT vs. multiple-DHT 6488 
The Sun Audio with 6E5P 6487 
Multistage DHT circuits 6486 
Wrong tube or wrong topology – here is the question. 6485 
Emission Labs 2A3 6485 
Some comment and questions about then 2A3 talks. 6485 
Which Chinese 2A3? 6485 
OK, for a first time I like the San Audio Kit. 6485 
The YO186 Strip Show 6485 
More on the 2A3 comparisons 6484 
It will be interesting…. 6484 
OPT impedence 6484 
More about the Plate Loading 6484 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6479 
2A3 data 6479 
The New 2A3 tubes 6479 
How many stages I need for 110dB sensitivity, smal... 6479 
How many stages and why... and who makes that 45 o... 6478 
Everything about everything. 6478 
Some very good points... and... possibly more logi... 6478 
Options, options, options.... 6478 
I think we agree overall 6478 
An IDHT with more gain? 6477 
You don't ask for much now, eh? 6477 
2A3 tube impressions 6472 
Interesting analogy 6472 
NOS 2A3 tubes versus new tubes 6472 
Hmmm, let me try this one again... 6472 
Sylvania 2A3 identification 6472 
A picture is worth a thousand micromhos? 6472 
I have more interest in the period tubes 6472 
Why NOS tubes? 6471 
The Holly Ignorance 6471 
Tube tasting 6471 
The cathodes’ flatulence? 6471 
Make mine thoriated please 6471 
Any Germans out there? 6471 
6E5P VS 6E6P 6471 
Vibrations? What do you with them? 6471 
Vibration in tubes and sounds 6471 
UX4 vs UX4ruskie 6470 
Ringing the tubes? I do not know how about that. 6470 
Tube sound and vibration 6470 
The thoughts collection about YO186? 6464 
The lights look green for the YO tube 6463 
"Melquiades" with YO-186. Something like... 6463 
My version of RE-604 and PX4 6462 
The YO186 tube sockets. 6462 
B4/B5 British made 6461 
The YO186’s sockets and prices 6461 
DHT 2A3 amplifier rectification 6460 
My attitude toward tube rectification. 6460 
Tu-be or not Tu-be, seems Tu-be the question. 6459 
It looks like DHT DSET is shaping up. 6458 
The Sylvania 2A3 NOS report 6455 
The Citizen Kane syndrome. 6455 
Sylvania 2A3 in a World without Color 6454 
Are NOS and new manufacture comparing oranges to o... 6454 
That all is incorrect in a way…. 6454 
NOS vs new 2A3 tubes 6454 
The identical operation environment? 6454 
Preferred 2A3 operating point 6454 
The sound of the 2A3 however? 6454 
Circuit modification for 2A3 optimization 6453 
How to get max power from 2A3 6453 
2A3 voltages, loads and realized output power 6453 
Optimal operation of 2A3: an experiment 6453 
Tubes, Whole Circuits, Expectations and Sound 6453 
Gain is not power. 6453 
2A3 amplifier modification & Optimization 6453 
Specialized DSET approach 6453 
6C33/2A3 DSET? 6453 
SET usable power and making the most of it 6453 
The 2A3 loading 6453 
DSET solution for EdgarHorn? 6453 
Optimizing the 2A3 6453 
How much to DSET a DSET 6453 
DSET for Titan 6453 
The Best of All Worlds 6453 
Multiamp setup 6452 
Optimizing the (NOS) 2A3... "KM-style"? 6452 
There are many opportunities, it all depends what ... 6452 
Modifying amplifer to optimize NOS 2A3 performance 6452 
Conceptualizing Melquiades DSET is done 6446 
2A3 and 400V supply 6446 
Pudding and the chicken wires 6445 
Another shot at numbers 6445 
How to cook the "uninformed" anode. 6445 
Okay, so this might work.... 6445 
The DHT Milq DSET, the prebuilt draft. 6445 
Looks good, but.... 6444 
2A3 with slightly lover filament voltage? 6444 
Less is more... usually. 6444 
Where to burn gain? how? and where to get beter st... 6443 
Stepping Out 6443 
Said to be good, but 6443 
Gain to lose 6443 
Why nothing is simple with this damn amp! 6443 
Another idea for losing gain 6443 
What's best 6443 
Options, options... 6443 
Actually, it is not so bad. 6443 
Other compromises... 6442 
Cathode vs. fixed with DHT 6441 
Is it glowing yet? 6421 
It is comming.... 6421 
The new MF channel. 6415 
I started to work on the Milq’s DHT Island. 6414 
Innerstage loading vs. OPT loading. 6406 
The intestage loading talk. 6403 
My playback feels like it is broken. 6398 
1 in 50? 6398 
Yes, it was after PP2000 6398 
Die Walküre soldering. 6397 
The post Die Walküre soldering 6396 
Another amp arond YO186 6395 
Gain? 6395 
The Unexpected problem with DHT Milq. 6395 
Simple is good 6394 
Ok, I am moving forward. 6394 
The Milq DSET is up. 6393 
My DH DSET – 2 days later. 6391 
Here is more data to reconcile. 6391 
Hm, that is interesting and unpleasant so far. 6390 
Ok, what do I want? 6390 
Let Go of Some Conceptual "Restrictions"? 6390 
The Milq DH DSET, the further thoughts in progress. 6390 
Crunching Numbers; Shaping Sound 6390 
How about the tweeter? 6389 
Tweeter Efficiency? 6389 
Safe and Sound 6389 
More mystery with tweeter but still on the subject. 6389 
Some clarifications. 6389 
How about that?!!! 6389 
Further considerations: DC-coupling. 6387 
Head Room 6387 
To kill the mandatory 13dB 6386 
DC coupling and killing 13db and driving 6e5p miller and.... 6386 
I do not think that it might be damaging… 6386 
Again with the PS 6386 
AKA J.C. Morrison’s amp but… 6384 
Parallel Universe 6384 
Melquiades HD MF DSET, Draft13. 6382 
Why I let other people build them... 6382 
Ok, it's going to right direction. 6382 
Ok, it looks already very close…. 6381 
The Loftinish-Whitish, well sort of…. 6378 
MF: the pre-final version. 6378 
Loftin-White? 6378 
Did anyone hear the PX4 amplifiers? 6378 
What Could use Improving at This Point? 6378 
The Milq’s MF front-end is done 6374 
Why I Let Other People Build Them, II 6374 
Define really quiet 6373 
Another variable of sound 6373 
Backlash? 6373 
Alternative filament supplies 6373 
I kind of faced a problem with AC 6373 
Going down the DC path 6372 
It is not about the “whole sound” but about “molec... 6372 
Molecular sound 6372 
AC-DC heater supply 6372 
The Tentlabs are $10 worth PS. 6372 
The unexpected resolution of AC vs. DC quandary. 6372 
The devil is less scared than it depicted. 6372 
Hiss or Hum 6372 
AC transformers 6372 
I have seen the Promised Land 6371 
OK, the choke noise is not a problem anymore 6371 
Ok, it is working fine but… 6370 
Divide and Conquer 6370 
The design phase is over. 6369 
The unexpected insanity! 6368 
Loading 6368 
Looking for inspiring ideas for 'universal' loadin... 6368 
A filaments Sherlock Holmes wanted. 6368 
Going the Distance 6368 
Read the f*** manual! 6368 
Agreed. 6368 
I agree 6368 
The filament transformer 6368 
Center-tap and options 6368 
Something like this…. 6368 
Avoiding "Dial-an-Amp" 6368 
The foreplay is going on. 6368 
Split balance 6367 
Further thoughts about my DH filaments 6367 
The Shuguang 2A3 tubes. 6367 
SHuguang 6367 
Going through…. 6366 
The 2.5V noise vs. 4V noise. 6365 
More about Shuguang 2A3C 6365 
Hum vs voltage 6365 
Meow about the tubes… 6365 
To Be a Content Cat 6365 
Completed! 6362 
Tradition 6362 
Absolutely beautiful! 6362 
The 'film' caps in PS 6361 
Science or religion 6361 
Mass Extinction 6361 
Electrolytics, technology and time 6361 
No more questions about PS capacitors. 6361 
Capacitor choices 6361 
Good time. Welcome back. Thanks God. 6360 
The minor day of Quartets. 6360 
Them's the Breaks 6360 
Eventually! 6359 
So Soon? 6359 
DHT MF channel and 6-ch amp: first conclusions 6359 
All Abuzz about Nothing 6358 
The wire for DC-coupling 6358 
The Dirt on DIY Backlash 6358 
DSET vs. the “better tubes”. 6358 
How to test the DH tubes properly? 6357 
Pairing up tubes for SE use 6356 
The DHT live reserve 6355 
Some interestng models 6355 
Eaten alive. 6355 
The tubey déjà vu? 6354 
The new concept of my output transformer. 6350 
The 4V takes a lead. 6346 
Listening the DH and the striped down version of M... 6343 
I kind of slowly learn what I need. 6343 
More HF from a transformer and DHT? 6341 
Since You Don't Need the Gain 6340 
Exiting the design mode? 6340 
Bye-bye the input divider on MF! 6340 
A few steps back and a gaint leap ahead. 6336 
Single-stage vs. DHT amp. 6335 
Setting up the new Playback 6334 
And the winner is… so far 6331 
If you like type 45... 6331 
Type 45... they're not all the same 6331 
Favorite Flavor? 6331 
The 45 times Meow... 6331 
The problem that I see is… 6331 
Running the 45 6331 
The 10Y...and bye bye Newton 6330 
The commentaries about everything. 6330 
Driver tube and biasing 6330 
DHT drivers 6330 
The ideas are worth trying? 6330 
A question about the polishing the things…. 6326 
The Particular Tube, I'm afraid... 6326 
Driving the 45... cathode first 6325 
ST or Globe; old or new... 6325 
Whatever sticks to the wall as an operation point ... 6325 
The attenuating crap in secondary. 6325 
Operating points and cathode current 6325 
The Burgeoning Opportunities! 6325 
Actually it is not so simple. 6325 
Resistors at the front 6324 
A minor alternation of a position 6324 
The era of enlightenment. 6321 
The devil is in the details.... 6321 
Constructing Sound 6321 
A new view on the DHT evaluation. 6320 
The “strange” YO186 6311 
The dead guy’s lessons. 6266 
2S4S and 2A3 6257 
Ho to use the YO186 6250 
YO 186 fundamental flavor 6250 
The YO-YO tube and "fundamentals" channel 6250 
The live without the YO186, again.... 6248 
Not anymore! 6237 
The very good YoYonisation! 6236 
….above and below two very clean channel. 6235 
The DHT and esoteric imaging deformation. 6222 
DHT, YO186, or??? 6222 
I had no idea how ‘different’ it is. 6169 
The Kazitsky Manufacturing and YO104, some history. 6168 
"Absolution and Eternal Refuge." 6165 
Sofia Electric Type 45 Mesh 6155 
The true association of YO186's Sounds. 5917 
All the Best from Burgundy 5917 
Cheesy tubes 5916 
Me and my DHT references… 5807 
Y0-186 in winter. 5710 
Y0-186 sounds like… 5709 
Rethinking the YO186 tube. 5678 
In My Dreams 5678 
Grunt from type 45? A ridicules comment. 5678 
Blame? 5677 
When good is not good enough. 5677 
45s, Drivers, and 45s 5677 
Hm, that was so simple after all! 5676 
How the YO186 was used. 5260 
What is old is new? 5259 
YO186 vs. type 45. 5258 
The YO186 is gone.... :-( 4807 
That sucks. 4807 
YO186 4805 
Hm, what the hell is going on? 4805 
I do not think that anybody but me would like YO186 4805 
A hallucination? 4802 
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