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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 6540 
One-stage Milq++ and the DHT's alleged tone 6539 
DHT Milq? 6539 
The DHT journey. 6539 
DHT tone 6539 
Well, why not? 6538 
Holding the Fort 6538 
My DHT experiment: Preface 6538 
Input tube and DC heaters 6537 
Reimyo Pat 777 6537 
My DHT experiment: Observations 6533 
DHT or 300B? 6533 
300B 6533 
Talking, perception and the grounds for objectively 6533 
The Wine Via the Wine Glass 6532 
Hence the confusion 6532 
My DHT experiment: some conclusions. 6532 
Reality Reconstruction is not a functionality. 6532 
My experience with DHTs 6532 
Pigmented coloration? 6532 
Dht-dht 6532 
Dynamic viscosity? 6532 
The Pallette preamp... 6532 
If one DHT is good, two must be better? 6532 
"soul" of tubes 6532 
There is a difference... 6532 
Vibration injection? 6532 
Homework # 4334 6532 
The 01A-71A-10Y-45 chain 6532 
Old valves have more soul! 6531 
Was it soul or soil? 6531 
It was just a heading 6531 
Adjustable color: TIMBRE LOCK? 6531 
Neutral or neutral/uncoloured? 6531 
..are lacking in power, dynamics and bandwidth. 6531 
Timbre-Lock. Not quite ready for prime time. 6531 
Injection of analog dither? 6531 
Subliminal signal 6531 
The idea of analog randomanization. 6531 
Okay, what Avicena Power Generator 6531 
I hope you will be hearing about it. 6530 
Avicenna = Arabian 6530 
Persian, not Arab 6530 
The “second solution” - a major disappointment 6530 
More words to describe "sux" please 6530 
Revolution 6530 
The non-melodramatic DHT? 6530 
One-stage DHTs 6529 
One other thing 6529 
One stage 6529 
Brewing, thinking and heating 6529 
Physical characteristics of electronic devices 6529 
I see the things differently. 6529 
Don't waste time being "creative" 6529 
The audiophile attitude 6529 
The where and why of design choices 6529 
Blah blah blah 6529 
Laconic Clarity vs. Comfort vs. Nostalgia 6529 
Do I need to be hissing? 6529 
...associated with lack of neutrality and colorati... 6529 
John Broskie's Partial feedback amplifier 6529 
Randomness vs. freedom and the Homework # 4334 6528 
What is randomness? 6528 
Those least three possibilities… 6528 
Randomness and Music's Prerogative 6528 
It works, … sort of. The revolution is canceled. 6528 
Thorsten Loesch’s article about DHT SETs 6526 
A Beautiful Mind 6525 
Some summary and conclusions from the first phase. 6523 
Second phase: revising requirement for my DHT objectives. 6508 
Tubes for your DHT amp 6508 
Abandoning Milq? 6508 
Will see how it goes.... 6508 
Single-stage Milq vs. Sun Audio VT-2A3 6506 
Topology and 2A3? 6506 
6SN7-2A3 amps? 6506 
Type Casting 6506 
Sun Audio SV-2A3 6506 
6sn7-2a3 6506 
Topology vs parts 6506 
For a DHT amp, you are listening to the power supply 6506 
The vintage tubes syndrome. 6506 
Parts Frenzy 6506 
Too many new sounds 6506 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6505 
New tubes 6504 
Milq bias vs. batery bias 6504 
The batteries are a tricky thing. 6504 
Swimming the ocean at night? 6504 
New 2A3 6504 
To kill of do not kill the capacitor. 6503 
The JJ Electronic amp. 6502 
JJ 2A3 and amp 6502 
Czech tubes 6500 
Single plated vs Double plated? 6500 
Mono plate 2A3 tubes 6500 
I suggested once VT52 tube 6499 
The 800R vs. 1800R vs. 5500R 6499 
YO-186 as the output tube. 6496 
Here she is. 6495 
Some talks about the new production tubes 6491 
New 2A3 tubes 6491 
Some thoughts about one-IHT vs. multiple-DHT 6491 
The Sun Audio with 6E5P 6490 
Multistage DHT circuits 6489 
Wrong tube or wrong topology – here is the question. 6488 
Emission Labs 2A3 6488 
Some comment and questions about then 2A3 talks. 6488 
Which Chinese 2A3? 6488 
OK, for a first time I like the San Audio Kit. 6488 
The YO186 Strip Show 6488 
More on the 2A3 comparisons 6487 
It will be interesting…. 6487 
OPT impedence 6487 
More about the Plate Loading 6487 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6482 
2A3 data 6482 
The New 2A3 tubes 6482 
How many stages I need for 110dB sensitivity, smal... 6482 
How many stages and why... and who makes that 45 o... 6481 
Everything about everything. 6481 
Some very good points... and... possibly more logi... 6481 
Options, options, options.... 6481 
I think we agree overall 6481 
An IDHT with more gain? 6480 
You don't ask for much now, eh? 6480 
2A3 tube impressions 6475 
Interesting analogy 6475 
NOS 2A3 tubes versus new tubes 6475 
Hmmm, let me try this one again... 6475 
Sylvania 2A3 identification 6475 
A picture is worth a thousand micromhos? 6475 
I have more interest in the period tubes 6475 
Why NOS tubes? 6474 
The Holly Ignorance 6474 
Tube tasting 6474 
The cathodes’ flatulence? 6474 
Make mine thoriated please 6474 
Any Germans out there? 6474 
6E5P VS 6E6P 6474 
Vibrations? What do you with them? 6474 
Vibration in tubes and sounds 6474 
UX4 vs UX4ruskie 6473 
Ringing the tubes? I do not know how about that. 6473 
Tube sound and vibration 6473 
The thoughts collection about YO186? 6467 
The lights look green for the YO tube 6466 
"Melquiades" with YO-186. Something like... 6466 
My version of RE-604 and PX4 6465 
The YO186 tube sockets. 6465 
B4/B5 British made 6464 
The YO186’s sockets and prices 6464 
DHT 2A3 amplifier rectification 6463 
My attitude toward tube rectification. 6463 
Tu-be or not Tu-be, seems Tu-be the question. 6462 
It looks like DHT DSET is shaping up. 6461 
The Sylvania 2A3 NOS report 6458 
The Citizen Kane syndrome. 6458 
Sylvania 2A3 in a World without Color 6457 
Are NOS and new manufacture comparing oranges to o... 6457 
That all is incorrect in a way…. 6457 
NOS vs new 2A3 tubes 6457 
The identical operation environment? 6457 
Preferred 2A3 operating point 6457 
The sound of the 2A3 however? 6457 
Circuit modification for 2A3 optimization 6456 
How to get max power from 2A3 6456 
2A3 voltages, loads and realized output power 6456 
Optimal operation of 2A3: an experiment 6456 
Tubes, Whole Circuits, Expectations and Sound 6456 
Gain is not power. 6456 
2A3 amplifier modification & Optimization 6456 
Specialized DSET approach 6456 
6C33/2A3 DSET? 6456 
SET usable power and making the most of it 6456 
The 2A3 loading 6456 
DSET solution for EdgarHorn? 6456 
Optimizing the 2A3 6456 
How much to DSET a DSET 6456 
DSET for Titan 6456 
The Best of All Worlds 6456 
Multiamp setup 6455 
Optimizing the (NOS) 2A3... "KM-style"? 6455 
There are many opportunities, it all depends what ... 6455 
Modifying amplifer to optimize NOS 2A3 performance 6455 
Conceptualizing Melquiades DSET is done 6449 
2A3 and 400V supply 6449 
Pudding and the chicken wires 6448 
Another shot at numbers 6448 
How to cook the "uninformed" anode. 6448 
Okay, so this might work.... 6448 
The DHT Milq DSET, the prebuilt draft. 6448 
Looks good, but.... 6447 
2A3 with slightly lover filament voltage? 6447 
Less is more... usually. 6447 
Where to burn gain? how? and where to get beter st... 6446 
Stepping Out 6446 
Said to be good, but 6446 
Gain to lose 6446 
Why nothing is simple with this damn amp! 6446 
Another idea for losing gain 6446 
What's best 6446 
Options, options... 6446 
Actually, it is not so bad. 6446 
Other compromises... 6445 
Cathode vs. fixed with DHT 6444 
Is it glowing yet? 6424 
It is comming.... 6424 
The new MF channel. 6418 
I started to work on the Milq’s DHT Island. 6417 
Innerstage loading vs. OPT loading. 6409 
The intestage loading talk. 6406 
My playback feels like it is broken. 6401 
1 in 50? 6401 
Yes, it was after PP2000 6401 
Die Walküre soldering. 6400 
The post Die Walküre soldering 6399 
Another amp arond YO186 6398 
Gain? 6398 
The Unexpected problem with DHT Milq. 6398 
Simple is good 6397 
Ok, I am moving forward. 6397 
The Milq DSET is up. 6396 
My DH DSET – 2 days later. 6394 
Here is more data to reconcile. 6394 
Hm, that is interesting and unpleasant so far. 6393 
Ok, what do I want? 6393 
Let Go of Some Conceptual "Restrictions"? 6393 
The Milq DH DSET, the further thoughts in progress. 6393 
Crunching Numbers; Shaping Sound 6393 
How about the tweeter? 6392 
Tweeter Efficiency? 6392 
Safe and Sound 6392 
More mystery with tweeter but still on the subject. 6392 
Some clarifications. 6392 
How about that?!!! 6392 
Further considerations: DC-coupling. 6390 
Head Room 6390 
To kill the mandatory 13dB 6389 
DC coupling and killing 13db and driving 6e5p miller and.... 6389 
I do not think that it might be damaging… 6389 
Again with the PS 6389 
AKA J.C. Morrison’s amp but… 6387 
Parallel Universe 6387 
Melquiades HD MF DSET, Draft13. 6385 
Why I let other people build them... 6385 
Ok, it's going to right direction. 6385 
Ok, it looks already very close…. 6384 
The Loftinish-Whitish, well sort of…. 6381 
MF: the pre-final version. 6381 
Loftin-White? 6381 
Did anyone hear the PX4 amplifiers? 6381 
What Could use Improving at This Point? 6381 
The Milq’s MF front-end is done 6377 
Why I Let Other People Build Them, II 6377 
Define really quiet 6376 
Another variable of sound 6376 
Backlash? 6376 
Alternative filament supplies 6376 
I kind of faced a problem with AC 6376 
Going down the DC path 6375 
It is not about the “whole sound” but about “molec... 6375 
Molecular sound 6375 
AC-DC heater supply 6375 
The Tentlabs are $10 worth PS. 6375 
The unexpected resolution of AC vs. DC quandary. 6375 
The devil is less scared than it depicted. 6375 
Hiss or Hum 6375 
AC transformers 6375 
I have seen the Promised Land 6374 
OK, the choke noise is not a problem anymore 6374 
Ok, it is working fine but… 6373 
Divide and Conquer 6373 
The design phase is over. 6372 
The unexpected insanity! 6371 
Loading 6371 
Looking for inspiring ideas for 'universal' loadin... 6371 
A filaments Sherlock Holmes wanted. 6371 
Going the Distance 6371 
Read the f*** manual! 6371 
Agreed. 6371 
I agree 6371 
The filament transformer 6371 
Center-tap and options 6371 
Something like this…. 6371 
Avoiding "Dial-an-Amp" 6371 
The foreplay is going on. 6371 
Split balance 6370 
Further thoughts about my DH filaments 6370 
The Shuguang 2A3 tubes. 6370 
SHuguang 6370 
Going through…. 6369 
The 2.5V noise vs. 4V noise. 6368 
More about Shuguang 2A3C 6368 
Hum vs voltage 6368 
Meow about the tubes… 6368 
To Be a Content Cat 6368 
Completed! 6365 
Tradition 6365 
Absolutely beautiful! 6365 
The 'film' caps in PS 6364 
Science or religion 6364 
Mass Extinction 6364 
Electrolytics, technology and time 6364 
No more questions about PS capacitors. 6364 
Capacitor choices 6364 
Good time. Welcome back. Thanks God. 6363 
The minor day of Quartets. 6363 
Them's the Breaks 6363 
Eventually! 6362 
So Soon? 6362 
DHT MF channel and 6-ch amp: first conclusions 6362 
All Abuzz about Nothing 6361 
The wire for DC-coupling 6361 
The Dirt on DIY Backlash 6361 
DSET vs. the “better tubes”. 6361 
How to test the DH tubes properly? 6360 
Pairing up tubes for SE use 6359 
The DHT live reserve 6358 
Some interestng models 6358 
Eaten alive. 6358 
The tubey déjà vu? 6357 
The new concept of my output transformer. 6353 
The 4V takes a lead. 6349 
Listening the DH and the striped down version of M... 6346 
I kind of slowly learn what I need. 6346 
More HF from a transformer and DHT? 6344 
Since You Don't Need the Gain 6343 
Exiting the design mode? 6343 
Bye-bye the input divider on MF! 6343 
A few steps back and a gaint leap ahead. 6339 
Single-stage vs. DHT amp. 6338 
Setting up the new Playback 6337 
And the winner is… so far 6334 
If you like type 45... 6334 
Type 45... they're not all the same 6334 
Favorite Flavor? 6334 
The 45 times Meow... 6334 
The problem that I see is… 6334 
Running the 45 6334 
The 10Y...and bye bye Newton 6333 
The commentaries about everything. 6333 
Driver tube and biasing 6333 
DHT drivers 6333 
The ideas are worth trying? 6333 
A question about the polishing the things…. 6329 
The Particular Tube, I'm afraid... 6329 
Driving the 45... cathode first 6328 
ST or Globe; old or new... 6328 
Whatever sticks to the wall as an operation point ... 6328 
The attenuating crap in secondary. 6328 
Operating points and cathode current 6328 
The Burgeoning Opportunities! 6328 
Actually it is not so simple. 6328 
Resistors at the front 6327 
A minor alternation of a position 6327 
The era of enlightenment. 6324 
The devil is in the details.... 6324 
Constructing Sound 6324 
A new view on the DHT evaluation. 6323 
The “strange” YO186 6314 
The dead guy’s lessons. 6269 
2S4S and 2A3 6260 
Ho to use the YO186 6253 
YO 186 fundamental flavor 6253 
The YO-YO tube and "fundamentals" channel 6253 
The live without the YO186, again.... 6251 
Not anymore! 6240 
The very good YoYonisation! 6239 
….above and below two very clean channel. 6238 
The DHT and esoteric imaging deformation. 6225 
DHT, YO186, or??? 6225 
I had no idea how ‘different’ it is. 6172 
The Kazitsky Manufacturing and YO104, some history. 6171 
"Absolution and Eternal Refuge." 6168 
Sofia Electric Type 45 Mesh 6158 
The true association of YO186's Sounds. 5920 
All the Best from Burgundy 5920 
Cheesy tubes 5919 
Me and my DHT references… 5810 
Y0-186 in winter. 5713 
Y0-186 sounds like… 5712 
Rethinking the YO186 tube. 5681 
In My Dreams 5681 
Grunt from type 45? A ridicules comment. 5681 
Blame? 5680 
When good is not good enough. 5680 
45s, Drivers, and 45s 5680 
Hm, that was so simple after all! 5679 
How the YO186 was used. 5263 
What is old is new? 5262 
YO186 vs. type 45. 5261 
The YO186 is gone.... :-( 4810 
That sucks. 4810 
YO186 4808 
Hm, what the hell is going on? 4808 
I do not think that anybody but me would like YO186 4808 
A hallucination? 4805 
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