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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 6541 
One-stage Milq++ and the DHT's alleged tone 6540 
DHT Milq? 6540 
The DHT journey. 6540 
DHT tone 6540 
Well, why not? 6539 
Holding the Fort 6539 
My DHT experiment: Preface 6539 
Input tube and DC heaters 6538 
Reimyo Pat 777 6538 
My DHT experiment: Observations 6534 
DHT or 300B? 6534 
300B 6534 
Talking, perception and the grounds for objectively 6534 
The Wine Via the Wine Glass 6533 
Hence the confusion 6533 
My DHT experiment: some conclusions. 6533 
Reality Reconstruction is not a functionality. 6533 
My experience with DHTs 6533 
Pigmented coloration? 6533 
Dht-dht 6533 
Dynamic viscosity? 6533 
The Pallette preamp... 6533 
If one DHT is good, two must be better? 6533 
"soul" of tubes 6533 
There is a difference... 6533 
Vibration injection? 6533 
Homework # 4334 6533 
The 01A-71A-10Y-45 chain 6533 
Old valves have more soul! 6532 
Was it soul or soil? 6532 
It was just a heading 6532 
Adjustable color: TIMBRE LOCK? 6532 
Neutral or neutral/uncoloured? 6532 
..are lacking in power, dynamics and bandwidth. 6532 
Timbre-Lock. Not quite ready for prime time. 6532 
Injection of analog dither? 6532 
Subliminal signal 6532 
The idea of analog randomanization. 6532 
Okay, what Avicena Power Generator 6532 
I hope you will be hearing about it. 6531 
Avicenna = Arabian 6531 
Persian, not Arab 6531 
The “second solution” - a major disappointment 6531 
More words to describe "sux" please 6531 
Revolution 6531 
The non-melodramatic DHT? 6531 
One-stage DHTs 6530 
One other thing 6530 
One stage 6530 
Brewing, thinking and heating 6530 
Physical characteristics of electronic devices 6530 
I see the things differently. 6530 
Don't waste time being "creative" 6530 
The audiophile attitude 6530 
The where and why of design choices 6530 
Blah blah blah 6530 
Laconic Clarity vs. Comfort vs. Nostalgia 6530 
Do I need to be hissing? 6530 
...associated with lack of neutrality and colorati... 6530 
John Broskie's Partial feedback amplifier 6530 
Randomness vs. freedom and the Homework # 4334 6529 
What is randomness? 6529 
Those least three possibilities… 6529 
Randomness and Music's Prerogative 6529 
It works, … sort of. The revolution is canceled. 6529 
Thorsten Loesch’s article about DHT SETs 6527 
A Beautiful Mind 6526 
Some summary and conclusions from the first phase. 6524 
Second phase: revising requirement for my DHT objectives. 6509 
Tubes for your DHT amp 6509 
Abandoning Milq? 6509 
Will see how it goes.... 6509 
Single-stage Milq vs. Sun Audio VT-2A3 6507 
Topology and 2A3? 6507 
6SN7-2A3 amps? 6507 
Type Casting 6507 
Sun Audio SV-2A3 6507 
6sn7-2a3 6507 
Topology vs parts 6507 
For a DHT amp, you are listening to the power supply 6507 
The vintage tubes syndrome. 6507 
Parts Frenzy 6507 
Too many new sounds 6507 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6506 
New tubes 6505 
Milq bias vs. batery bias 6505 
The batteries are a tricky thing. 6505 
Swimming the ocean at night? 6505 
New 2A3 6505 
To kill of do not kill the capacitor. 6504 
The JJ Electronic amp. 6503 
JJ 2A3 and amp 6503 
Czech tubes 6501 
Single plated vs Double plated? 6501 
Mono plate 2A3 tubes 6501 
I suggested once VT52 tube 6500 
The 800R vs. 1800R vs. 5500R 6500 
YO-186 as the output tube. 6497 
Here she is. 6496 
Some talks about the new production tubes 6492 
New 2A3 tubes 6492 
Some thoughts about one-IHT vs. multiple-DHT 6492 
The Sun Audio with 6E5P 6491 
Multistage DHT circuits 6490 
Wrong tube or wrong topology – here is the question. 6489 
Emission Labs 2A3 6489 
Some comment and questions about then 2A3 talks. 6489 
Which Chinese 2A3? 6489 
OK, for a first time I like the San Audio Kit. 6489 
The YO186 Strip Show 6489 
More on the 2A3 comparisons 6488 
It will be interesting…. 6488 
OPT impedence 6488 
More about the Plate Loading 6488 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6483 
2A3 data 6483 
The New 2A3 tubes 6483 
How many stages I need for 110dB sensitivity, smal... 6483 
How many stages and why... and who makes that 45 o... 6482 
Everything about everything. 6482 
Some very good points... and... possibly more logi... 6482 
Options, options, options.... 6482 
I think we agree overall 6482 
An IDHT with more gain? 6481 
You don't ask for much now, eh? 6481 
2A3 tube impressions 6476 
Interesting analogy 6476 
NOS 2A3 tubes versus new tubes 6476 
Hmmm, let me try this one again... 6476 
Sylvania 2A3 identification 6476 
A picture is worth a thousand micromhos? 6476 
I have more interest in the period tubes 6476 
Why NOS tubes? 6475 
The Holly Ignorance 6475 
Tube tasting 6475 
The cathodes’ flatulence? 6475 
Make mine thoriated please 6475 
Any Germans out there? 6475 
6E5P VS 6E6P 6475 
Vibrations? What do you with them? 6475 
Vibration in tubes and sounds 6475 
UX4 vs UX4ruskie 6474 
Ringing the tubes? I do not know how about that. 6474 
Tube sound and vibration 6474 
The thoughts collection about YO186? 6468 
The lights look green for the YO tube 6467 
"Melquiades" with YO-186. Something like... 6467 
My version of RE-604 and PX4 6466 
The YO186 tube sockets. 6466 
B4/B5 British made 6465 
The YO186’s sockets and prices 6465 
DHT 2A3 amplifier rectification 6464 
My attitude toward tube rectification. 6464 
Tu-be or not Tu-be, seems Tu-be the question. 6463 
It looks like DHT DSET is shaping up. 6462 
The Sylvania 2A3 NOS report 6459 
The Citizen Kane syndrome. 6459 
Sylvania 2A3 in a World without Color 6458 
Are NOS and new manufacture comparing oranges to o... 6458 
That all is incorrect in a way…. 6458 
NOS vs new 2A3 tubes 6458 
The identical operation environment? 6458 
Preferred 2A3 operating point 6458 
The sound of the 2A3 however? 6458 
Circuit modification for 2A3 optimization 6457 
How to get max power from 2A3 6457 
2A3 voltages, loads and realized output power 6457 
Optimal operation of 2A3: an experiment 6457 
Tubes, Whole Circuits, Expectations and Sound 6457 
Gain is not power. 6457 
2A3 amplifier modification & Optimization 6457 
Specialized DSET approach 6457 
6C33/2A3 DSET? 6457 
SET usable power and making the most of it 6457 
The 2A3 loading 6457 
DSET solution for EdgarHorn? 6457 
Optimizing the 2A3 6457 
How much to DSET a DSET 6457 
DSET for Titan 6457 
The Best of All Worlds 6457 
Multiamp setup 6456 
Optimizing the (NOS) 2A3... "KM-style"? 6456 
There are many opportunities, it all depends what ... 6456 
Modifying amplifer to optimize NOS 2A3 performance 6456 
Conceptualizing Melquiades DSET is done 6450 
2A3 and 400V supply 6450 
Pudding and the chicken wires 6449 
Another shot at numbers 6449 
How to cook the "uninformed" anode. 6449 
Okay, so this might work.... 6449 
The DHT Milq DSET, the prebuilt draft. 6449 
Looks good, but.... 6448 
2A3 with slightly lover filament voltage? 6448 
Less is more... usually. 6448 
Where to burn gain? how? and where to get beter st... 6447 
Stepping Out 6447 
Said to be good, but 6447 
Gain to lose 6447 
Why nothing is simple with this damn amp! 6447 
Another idea for losing gain 6447 
What's best 6447 
Options, options... 6447 
Actually, it is not so bad. 6447 
Other compromises... 6446 
Cathode vs. fixed with DHT 6445 
Is it glowing yet? 6425 
It is comming.... 6425 
The new MF channel. 6419 
I started to work on the Milq’s DHT Island. 6418 
Innerstage loading vs. OPT loading. 6410 
The intestage loading talk. 6407 
My playback feels like it is broken. 6402 
1 in 50? 6402 
Yes, it was after PP2000 6402 
Die Walküre soldering. 6401 
The post Die Walküre soldering 6400 
Another amp arond YO186 6399 
Gain? 6399 
The Unexpected problem with DHT Milq. 6399 
Simple is good 6398 
Ok, I am moving forward. 6398 
The Milq DSET is up. 6397 
My DH DSET – 2 days later. 6395 
Here is more data to reconcile. 6395 
Hm, that is interesting and unpleasant so far. 6394 
Ok, what do I want? 6394 
Let Go of Some Conceptual "Restrictions"? 6394 
The Milq DH DSET, the further thoughts in progress. 6394 
Crunching Numbers; Shaping Sound 6394 
How about the tweeter? 6393 
Tweeter Efficiency? 6393 
Safe and Sound 6393 
More mystery with tweeter but still on the subject. 6393 
Some clarifications. 6393 
How about that?!!! 6393 
Further considerations: DC-coupling. 6391 
Head Room 6391 
To kill the mandatory 13dB 6390 
DC coupling and killing 13db and driving 6e5p miller and.... 6390 
I do not think that it might be damaging… 6390 
Again with the PS 6390 
AKA J.C. Morrison’s amp but… 6388 
Parallel Universe 6388 
Melquiades HD MF DSET, Draft13. 6386 
Why I let other people build them... 6386 
Ok, it's going to right direction. 6386 
Ok, it looks already very close…. 6385 
The Loftinish-Whitish, well sort of…. 6382 
MF: the pre-final version. 6382 
Loftin-White? 6382 
Did anyone hear the PX4 amplifiers? 6382 
What Could use Improving at This Point? 6382 
The Milq’s MF front-end is done 6378 
Why I Let Other People Build Them, II 6378 
Define really quiet 6377 
Another variable of sound 6377 
Backlash? 6377 
Alternative filament supplies 6377 
I kind of faced a problem with AC 6377 
Going down the DC path 6376 
It is not about the “whole sound” but about “molec... 6376 
Molecular sound 6376 
AC-DC heater supply 6376 
The Tentlabs are $10 worth PS. 6376 
The unexpected resolution of AC vs. DC quandary. 6376 
The devil is less scared than it depicted. 6376 
Hiss or Hum 6376 
AC transformers 6376 
I have seen the Promised Land 6375 
OK, the choke noise is not a problem anymore 6375 
Ok, it is working fine but… 6374 
Divide and Conquer 6374 
The design phase is over. 6373 
The unexpected insanity! 6372 
Loading 6372 
Looking for inspiring ideas for 'universal' loadin... 6372 
A filaments Sherlock Holmes wanted. 6372 
Going the Distance 6372 
Read the f*** manual! 6372 
Agreed. 6372 
I agree 6372 
The filament transformer 6372 
Center-tap and options 6372 
Something like this…. 6372 
Avoiding "Dial-an-Amp" 6372 
The foreplay is going on. 6372 
Split balance 6371 
Further thoughts about my DH filaments 6371 
The Shuguang 2A3 tubes. 6371 
SHuguang 6371 
Going through…. 6370 
The 2.5V noise vs. 4V noise. 6369 
More about Shuguang 2A3C 6369 
Hum vs voltage 6369 
Meow about the tubes… 6369 
To Be a Content Cat 6369 
Completed! 6366 
Tradition 6366 
Absolutely beautiful! 6366 
The 'film' caps in PS 6365 
Science or religion 6365 
Mass Extinction 6365 
Electrolytics, technology and time 6365 
No more questions about PS capacitors. 6365 
Capacitor choices 6365 
Good time. Welcome back. Thanks God. 6364 
The minor day of Quartets. 6364 
Them's the Breaks 6364 
Eventually! 6363 
So Soon? 6363 
DHT MF channel and 6-ch amp: first conclusions 6363 
All Abuzz about Nothing 6362 
The wire for DC-coupling 6362 
The Dirt on DIY Backlash 6362 
DSET vs. the “better tubes”. 6362 
How to test the DH tubes properly? 6361 
Pairing up tubes for SE use 6360 
The DHT live reserve 6359 
Some interestng models 6359 
Eaten alive. 6359 
The tubey déjà vu? 6358 
The new concept of my output transformer. 6354 
The 4V takes a lead. 6350 
Listening the DH and the striped down version of M... 6347 
I kind of slowly learn what I need. 6347 
More HF from a transformer and DHT? 6345 
Since You Don't Need the Gain 6344 
Exiting the design mode? 6344 
Bye-bye the input divider on MF! 6344 
A few steps back and a gaint leap ahead. 6340 
Single-stage vs. DHT amp. 6339 
Setting up the new Playback 6338 
And the winner is… so far 6335 
If you like type 45... 6335 
Type 45... they're not all the same 6335 
Favorite Flavor? 6335 
The 45 times Meow... 6335 
The problem that I see is… 6335 
Running the 45 6335 
The 10Y...and bye bye Newton 6334 
The commentaries about everything. 6334 
Driver tube and biasing 6334 
DHT drivers 6334 
The ideas are worth trying? 6334 
A question about the polishing the things…. 6330 
The Particular Tube, I'm afraid... 6330 
Driving the 45... cathode first 6329 
ST or Globe; old or new... 6329 
Whatever sticks to the wall as an operation point ... 6329 
The attenuating crap in secondary. 6329 
Operating points and cathode current 6329 
The Burgeoning Opportunities! 6329 
Actually it is not so simple. 6329 
Resistors at the front 6328 
A minor alternation of a position 6328 
The era of enlightenment. 6325 
The devil is in the details.... 6325 
Constructing Sound 6325 
A new view on the DHT evaluation. 6324 
The “strange” YO186 6315 
The dead guy’s lessons. 6270 
2S4S and 2A3 6261 
Ho to use the YO186 6254 
YO 186 fundamental flavor 6254 
The YO-YO tube and "fundamentals" channel 6254 
The live without the YO186, again.... 6252 
Not anymore! 6241 
The very good YoYonisation! 6240 
….above and below two very clean channel. 6239 
The DHT and esoteric imaging deformation. 6226 
DHT, YO186, or??? 6226 
I had no idea how ‘different’ it is. 6173 
The Kazitsky Manufacturing and YO104, some history. 6172 
"Absolution and Eternal Refuge." 6169 
Sofia Electric Type 45 Mesh 6159 
The true association of YO186's Sounds. 5921 
All the Best from Burgundy 5921 
Cheesy tubes 5920 
Me and my DHT references… 5811 
Y0-186 in winter. 5714 
Y0-186 sounds like… 5713 
Rethinking the YO186 tube. 5682 
In My Dreams 5682 
Grunt from type 45? A ridicules comment. 5682 
Blame? 5681 
When good is not good enough. 5681 
45s, Drivers, and 45s 5681 
Hm, that was so simple after all! 5680 
How the YO186 was used. 5264 
What is old is new? 5263 
YO186 vs. type 45. 5262 
The YO186 is gone.... :-( 4811 
That sucks. 4811 
YO186 4809 
Hm, what the hell is going on? 4809 
I do not think that anybody but me would like YO186 4809 
A hallucination? 4806 
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