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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 6530 
One-stage Milq++ and the DHT's alleged tone 6529 
DHT Milq? 6529 
The DHT journey. 6529 
DHT tone 6529 
Well, why not? 6528 
Holding the Fort 6528 
My DHT experiment: Preface 6528 
Input tube and DC heaters 6527 
Reimyo Pat 777 6527 
My DHT experiment: Observations 6523 
DHT or 300B? 6523 
300B 6523 
Talking, perception and the grounds for objectively 6523 
The Wine Via the Wine Glass 6522 
Hence the confusion 6522 
My DHT experiment: some conclusions. 6522 
Reality Reconstruction is not a functionality. 6522 
My experience with DHTs 6522 
Pigmented coloration? 6522 
Dht-dht 6522 
Dynamic viscosity? 6522 
The Pallette preamp... 6522 
If one DHT is good, two must be better? 6522 
"soul" of tubes 6522 
There is a difference... 6522 
Vibration injection? 6522 
Homework # 4334 6522 
The 01A-71A-10Y-45 chain 6522 
Old valves have more soul! 6521 
Was it soul or soil? 6521 
It was just a heading 6521 
Adjustable color: TIMBRE LOCK? 6521 
Neutral or neutral/uncoloured? 6521 
..are lacking in power, dynamics and bandwidth. 6521 
Timbre-Lock. Not quite ready for prime time. 6521 
Injection of analog dither? 6521 
Subliminal signal 6521 
The idea of analog randomanization. 6521 
Okay, what Avicena Power Generator 6521 
I hope you will be hearing about it. 6520 
Avicenna = Arabian 6520 
Persian, not Arab 6520 
The “second solution” - a major disappointment 6520 
More words to describe "sux" please 6520 
Revolution 6520 
The non-melodramatic DHT? 6520 
One-stage DHTs 6519 
One other thing 6519 
One stage 6519 
Brewing, thinking and heating 6519 
Physical characteristics of electronic devices 6519 
I see the things differently. 6519 
Don't waste time being "creative" 6519 
The audiophile attitude 6519 
The where and why of design choices 6519 
Blah blah blah 6519 
Laconic Clarity vs. Comfort vs. Nostalgia 6519 
Do I need to be hissing? 6519 
...associated with lack of neutrality and colorati... 6519 
John Broskie's Partial feedback amplifier 6519 
Randomness vs. freedom and the Homework # 4334 6518 
What is randomness? 6518 
Those least three possibilities… 6518 
Randomness and Music's Prerogative 6518 
It works, … sort of. The revolution is canceled. 6518 
Thorsten Loesch’s article about DHT SETs 6516 
A Beautiful Mind 6515 
Some summary and conclusions from the first phase. 6513 
Second phase: revising requirement for my DHT objectives. 6498 
Tubes for your DHT amp 6498 
Abandoning Milq? 6498 
Will see how it goes.... 6498 
Single-stage Milq vs. Sun Audio VT-2A3 6496 
Topology and 2A3? 6496 
6SN7-2A3 amps? 6496 
Type Casting 6496 
Sun Audio SV-2A3 6496 
6sn7-2a3 6496 
Topology vs parts 6496 
For a DHT amp, you are listening to the power supply 6496 
The vintage tubes syndrome. 6496 
Parts Frenzy 6496 
Too many new sounds 6496 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6495 
New tubes 6494 
Milq bias vs. batery bias 6494 
The batteries are a tricky thing. 6494 
Swimming the ocean at night? 6494 
New 2A3 6494 
To kill of do not kill the capacitor. 6493 
The JJ Electronic amp. 6492 
JJ 2A3 and amp 6492 
Czech tubes 6490 
Single plated vs Double plated? 6490 
Mono plate 2A3 tubes 6490 
I suggested once VT52 tube 6489 
The 800R vs. 1800R vs. 5500R 6489 
YO-186 as the output tube. 6486 
Here she is. 6485 
Some talks about the new production tubes 6481 
New 2A3 tubes 6481 
Some thoughts about one-IHT vs. multiple-DHT 6481 
The Sun Audio with 6E5P 6480 
Multistage DHT circuits 6479 
Wrong tube or wrong topology – here is the question. 6478 
Emission Labs 2A3 6478 
Some comment and questions about then 2A3 talks. 6478 
Which Chinese 2A3? 6478 
OK, for a first time I like the San Audio Kit. 6478 
The YO186 Strip Show 6478 
More on the 2A3 comparisons 6477 
It will be interesting…. 6477 
OPT impedence 6477 
More about the Plate Loading 6477 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6472 
2A3 data 6472 
The New 2A3 tubes 6472 
How many stages I need for 110dB sensitivity, smal... 6472 
How many stages and why... and who makes that 45 o... 6471 
Everything about everything. 6471 
Some very good points... and... possibly more logi... 6471 
Options, options, options.... 6471 
I think we agree overall 6471 
An IDHT with more gain? 6470 
You don't ask for much now, eh? 6470 
2A3 tube impressions 6465 
Interesting analogy 6465 
NOS 2A3 tubes versus new tubes 6465 
Hmmm, let me try this one again... 6465 
Sylvania 2A3 identification 6465 
A picture is worth a thousand micromhos? 6465 
I have more interest in the period tubes 6465 
Why NOS tubes? 6464 
The Holly Ignorance 6464 
Tube tasting 6464 
The cathodes’ flatulence? 6464 
Make mine thoriated please 6464 
Any Germans out there? 6464 
6E5P VS 6E6P 6464 
Vibrations? What do you with them? 6464 
Vibration in tubes and sounds 6464 
UX4 vs UX4ruskie 6463 
Ringing the tubes? I do not know how about that. 6463 
Tube sound and vibration 6463 
The thoughts collection about YO186? 6457 
The lights look green for the YO tube 6456 
"Melquiades" with YO-186. Something like... 6456 
My version of RE-604 and PX4 6455 
The YO186 tube sockets. 6455 
B4/B5 British made 6454 
The YO186’s sockets and prices 6454 
DHT 2A3 amplifier rectification 6453 
My attitude toward tube rectification. 6453 
Tu-be or not Tu-be, seems Tu-be the question. 6452 
It looks like DHT DSET is shaping up. 6451 
The Sylvania 2A3 NOS report 6448 
The Citizen Kane syndrome. 6448 
Sylvania 2A3 in a World without Color 6447 
Are NOS and new manufacture comparing oranges to o... 6447 
That all is incorrect in a way…. 6447 
NOS vs new 2A3 tubes 6447 
The identical operation environment? 6447 
Preferred 2A3 operating point 6447 
The sound of the 2A3 however? 6447 
Circuit modification for 2A3 optimization 6446 
How to get max power from 2A3 6446 
2A3 voltages, loads and realized output power 6446 
Optimal operation of 2A3: an experiment 6446 
Tubes, Whole Circuits, Expectations and Sound 6446 
Gain is not power. 6446 
2A3 amplifier modification & Optimization 6446 
Specialized DSET approach 6446 
6C33/2A3 DSET? 6446 
SET usable power and making the most of it 6446 
The 2A3 loading 6446 
DSET solution for EdgarHorn? 6446 
Optimizing the 2A3 6446 
How much to DSET a DSET 6446 
DSET for Titan 6446 
The Best of All Worlds 6446 
Multiamp setup 6445 
Optimizing the (NOS) 2A3... "KM-style"? 6445 
There are many opportunities, it all depends what ... 6445 
Modifying amplifer to optimize NOS 2A3 performance 6445 
Conceptualizing Melquiades DSET is done 6439 
2A3 and 400V supply 6439 
Pudding and the chicken wires 6438 
Another shot at numbers 6438 
How to cook the "uninformed" anode. 6438 
Okay, so this might work.... 6438 
The DHT Milq DSET, the prebuilt draft. 6438 
Looks good, but.... 6437 
2A3 with slightly lover filament voltage? 6437 
Less is more... usually. 6437 
Where to burn gain? how? and where to get beter st... 6436 
Stepping Out 6436 
Said to be good, but 6436 
Gain to lose 6436 
Why nothing is simple with this damn amp! 6436 
Another idea for losing gain 6436 
What's best 6436 
Options, options... 6436 
Actually, it is not so bad. 6436 
Other compromises... 6435 
Cathode vs. fixed with DHT 6434 
Is it glowing yet? 6414 
It is comming.... 6414 
The new MF channel. 6408 
I started to work on the Milq’s DHT Island. 6407 
Innerstage loading vs. OPT loading. 6399 
The intestage loading talk. 6396 
My playback feels like it is broken. 6391 
1 in 50? 6391 
Yes, it was after PP2000 6391 
Die Walküre soldering. 6390 
The post Die Walküre soldering 6389 
Another amp arond YO186 6388 
Gain? 6388 
The Unexpected problem with DHT Milq. 6388 
Simple is good 6387 
Ok, I am moving forward. 6387 
The Milq DSET is up. 6386 
My DH DSET – 2 days later. 6384 
Here is more data to reconcile. 6384 
Hm, that is interesting and unpleasant so far. 6383 
Ok, what do I want? 6383 
Let Go of Some Conceptual "Restrictions"? 6383 
The Milq DH DSET, the further thoughts in progress. 6383 
Crunching Numbers; Shaping Sound 6383 
How about the tweeter? 6382 
Tweeter Efficiency? 6382 
Safe and Sound 6382 
More mystery with tweeter but still on the subject. 6382 
Some clarifications. 6382 
How about that?!!! 6382 
Further considerations: DC-coupling. 6380 
Head Room 6380 
To kill the mandatory 13dB 6379 
DC coupling and killing 13db and driving 6e5p miller and.... 6379 
I do not think that it might be damaging… 6379 
Again with the PS 6379 
AKA J.C. Morrison’s amp but… 6377 
Parallel Universe 6377 
Melquiades HD MF DSET, Draft13. 6375 
Why I let other people build them... 6375 
Ok, it's going to right direction. 6375 
Ok, it looks already very close…. 6374 
The Loftinish-Whitish, well sort of…. 6371 
MF: the pre-final version. 6371 
Loftin-White? 6371 
Did anyone hear the PX4 amplifiers? 6371 
What Could use Improving at This Point? 6371 
The Milq’s MF front-end is done 6367 
Why I Let Other People Build Them, II 6367 
Define really quiet 6366 
Another variable of sound 6366 
Backlash? 6366 
Alternative filament supplies 6366 
I kind of faced a problem with AC 6366 
Going down the DC path 6365 
It is not about the “whole sound” but about “molec... 6365 
Molecular sound 6365 
AC-DC heater supply 6365 
The Tentlabs are $10 worth PS. 6365 
The unexpected resolution of AC vs. DC quandary. 6365 
The devil is less scared than it depicted. 6365 
Hiss or Hum 6365 
AC transformers 6365 
I have seen the Promised Land 6364 
OK, the choke noise is not a problem anymore 6364 
Ok, it is working fine but… 6363 
Divide and Conquer 6363 
The design phase is over. 6362 
The unexpected insanity! 6361 
Loading 6361 
Looking for inspiring ideas for 'universal' loadin... 6361 
A filaments Sherlock Holmes wanted. 6361 
Going the Distance 6361 
Read the f*** manual! 6361 
Agreed. 6361 
I agree 6361 
The filament transformer 6361 
Center-tap and options 6361 
Something like this…. 6361 
Avoiding "Dial-an-Amp" 6361 
The foreplay is going on. 6361 
Split balance 6360 
Further thoughts about my DH filaments 6360 
The Shuguang 2A3 tubes. 6360 
SHuguang 6360 
Going through…. 6359 
The 2.5V noise vs. 4V noise. 6358 
More about Shuguang 2A3C 6358 
Hum vs voltage 6358 
Meow about the tubes… 6358 
To Be a Content Cat 6358 
Completed! 6355 
Tradition 6355 
Absolutely beautiful! 6355 
The 'film' caps in PS 6354 
Science or religion 6354 
Mass Extinction 6354 
Electrolytics, technology and time 6354 
No more questions about PS capacitors. 6354 
Capacitor choices 6354 
Good time. Welcome back. Thanks God. 6353 
The minor day of Quartets. 6353 
Them's the Breaks 6353 
Eventually! 6352 
So Soon? 6352 
DHT MF channel and 6-ch amp: first conclusions 6352 
All Abuzz about Nothing 6351 
The wire for DC-coupling 6351 
The Dirt on DIY Backlash 6351 
DSET vs. the “better tubes”. 6351 
How to test the DH tubes properly? 6350 
Pairing up tubes for SE use 6349 
The DHT live reserve 6348 
Some interestng models 6348 
Eaten alive. 6348 
The tubey déjà vu? 6347 
The new concept of my output transformer. 6343 
The 4V takes a lead. 6339 
Listening the DH and the striped down version of M... 6336 
I kind of slowly learn what I need. 6336 
More HF from a transformer and DHT? 6334 
Since You Don't Need the Gain 6333 
Exiting the design mode? 6333 
Bye-bye the input divider on MF! 6333 
A few steps back and a gaint leap ahead. 6329 
Single-stage vs. DHT amp. 6328 
Setting up the new Playback 6327 
And the winner is… so far 6324 
If you like type 45... 6324 
Type 45... they're not all the same 6324 
Favorite Flavor? 6324 
The 45 times Meow... 6324 
The problem that I see is… 6324 
Running the 45 6324 
The 10Y...and bye bye Newton 6323 
The commentaries about everything. 6323 
Driver tube and biasing 6323 
DHT drivers 6323 
The ideas are worth trying? 6323 
A question about the polishing the things…. 6319 
The Particular Tube, I'm afraid... 6319 
Driving the 45... cathode first 6318 
ST or Globe; old or new... 6318 
Whatever sticks to the wall as an operation point ... 6318 
The attenuating crap in secondary. 6318 
Operating points and cathode current 6318 
The Burgeoning Opportunities! 6318 
Actually it is not so simple. 6318 
Resistors at the front 6317 
A minor alternation of a position 6317 
The era of enlightenment. 6314 
The devil is in the details.... 6314 
Constructing Sound 6314 
A new view on the DHT evaluation. 6313 
The “strange” YO186 6304 
The dead guy’s lessons. 6259 
2S4S and 2A3 6250 
Ho to use the YO186 6243 
YO 186 fundamental flavor 6243 
The YO-YO tube and "fundamentals" channel 6243 
The live without the YO186, again.... 6241 
Not anymore! 6230 
The very good YoYonisation! 6229 
….above and below two very clean channel. 6228 
The DHT and esoteric imaging deformation. 6215 
DHT, YO186, or??? 6215 
I had no idea how ‘different’ it is. 6162 
The Kazitsky Manufacturing and YO104, some history. 6161 
"Absolution and Eternal Refuge." 6158 
Sofia Electric Type 45 Mesh 6148 
The true association of YO186's Sounds. 5910 
All the Best from Burgundy 5910 
Cheesy tubes 5909 
Me and my DHT references… 5800 
Y0-186 in winter. 5703 
Y0-186 sounds like… 5702 
Rethinking the YO186 tube. 5671 
In My Dreams 5671 
Grunt from type 45? A ridicules comment. 5671 
Blame? 5670 
When good is not good enough. 5670 
45s, Drivers, and 45s 5670 
Hm, that was so simple after all! 5669 
How the YO186 was used. 5253 
What is old is new? 5252 
YO186 vs. type 45. 5251 
The YO186 is gone.... :-( 4800 
That sucks. 4800 
YO186 4798 
Hm, what the hell is going on? 4798 
I do not think that anybody but me would like YO186 4798 
A hallucination? 4795 
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