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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 6554 
One-stage Milq++ and the DHT's alleged tone 6553 
DHT Milq? 6553 
The DHT journey. 6553 
DHT tone 6553 
Well, why not? 6552 
Holding the Fort 6552 
My DHT experiment: Preface 6552 
Input tube and DC heaters 6551 
Reimyo Pat 777 6551 
My DHT experiment: Observations 6547 
DHT or 300B? 6547 
300B 6547 
Talking, perception and the grounds for objectively 6547 
The Wine Via the Wine Glass 6546 
Hence the confusion 6546 
My DHT experiment: some conclusions. 6546 
Reality Reconstruction is not a functionality. 6546 
My experience with DHTs 6546 
Pigmented coloration? 6546 
Dht-dht 6546 
Dynamic viscosity? 6546 
The Pallette preamp... 6546 
If one DHT is good, two must be better? 6546 
"soul" of tubes 6546 
There is a difference... 6546 
Vibration injection? 6546 
Homework # 4334 6546 
The 01A-71A-10Y-45 chain 6546 
Old valves have more soul! 6545 
Was it soul or soil? 6545 
It was just a heading 6545 
Adjustable color: TIMBRE LOCK? 6545 
Neutral or neutral/uncoloured? 6545 
..are lacking in power, dynamics and bandwidth. 6545 
Timbre-Lock. Not quite ready for prime time. 6545 
Injection of analog dither? 6545 
Subliminal signal 6545 
The idea of analog randomanization. 6545 
Okay, what Avicena Power Generator 6545 
I hope you will be hearing about it. 6544 
Avicenna = Arabian 6544 
Persian, not Arab 6544 
The “second solution” - a major disappointment 6544 
More words to describe "sux" please 6544 
Revolution 6544 
The non-melodramatic DHT? 6544 
One-stage DHTs 6543 
One other thing 6543 
One stage 6543 
Brewing, thinking and heating 6543 
Physical characteristics of electronic devices 6543 
I see the things differently. 6543 
Don't waste time being "creative" 6543 
The audiophile attitude 6543 
The where and why of design choices 6543 
Blah blah blah 6543 
Laconic Clarity vs. Comfort vs. Nostalgia 6543 
Do I need to be hissing? 6543 
...associated with lack of neutrality and colorati... 6543 
John Broskie's Partial feedback amplifier 6543 
Randomness vs. freedom and the Homework # 4334 6542 
What is randomness? 6542 
Those least three possibilities… 6542 
Randomness and Music's Prerogative 6542 
It works, … sort of. The revolution is canceled. 6542 
Thorsten Loesch’s article about DHT SETs 6540 
A Beautiful Mind 6539 
Some summary and conclusions from the first phase. 6537 
Second phase: revising requirement for my DHT objectives. 6522 
Tubes for your DHT amp 6522 
Abandoning Milq? 6522 
Will see how it goes.... 6522 
Single-stage Milq vs. Sun Audio VT-2A3 6520 
Topology and 2A3? 6520 
6SN7-2A3 amps? 6520 
Type Casting 6520 
Sun Audio SV-2A3 6520 
6sn7-2a3 6520 
Topology vs parts 6520 
For a DHT amp, you are listening to the power supply 6520 
The vintage tubes syndrome. 6520 
Parts Frenzy 6520 
Too many new sounds 6520 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6519 
New tubes 6518 
Milq bias vs. batery bias 6518 
The batteries are a tricky thing. 6518 
Swimming the ocean at night? 6518 
New 2A3 6518 
To kill of do not kill the capacitor. 6517 
The JJ Electronic amp. 6516 
JJ 2A3 and amp 6516 
Czech tubes 6514 
Single plated vs Double plated? 6514 
Mono plate 2A3 tubes 6514 
I suggested once VT52 tube 6513 
The 800R vs. 1800R vs. 5500R 6513 
YO-186 as the output tube. 6510 
Here she is. 6509 
Some talks about the new production tubes 6505 
New 2A3 tubes 6505 
Some thoughts about one-IHT vs. multiple-DHT 6505 
The Sun Audio with 6E5P 6504 
Multistage DHT circuits 6503 
Wrong tube or wrong topology – here is the question. 6502 
Emission Labs 2A3 6502 
Some comment and questions about then 2A3 talks. 6502 
Which Chinese 2A3? 6502 
OK, for a first time I like the San Audio Kit. 6502 
The YO186 Strip Show 6502 
More on the 2A3 comparisons 6501 
It will be interesting…. 6501 
OPT impedence 6501 
More about the Plate Loading 6501 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6496 
2A3 data 6496 
The New 2A3 tubes 6496 
How many stages I need for 110dB sensitivity, smal... 6496 
How many stages and why... and who makes that 45 o... 6495 
Everything about everything. 6495 
Some very good points... and... possibly more logi... 6495 
Options, options, options.... 6495 
I think we agree overall 6495 
An IDHT with more gain? 6494 
You don't ask for much now, eh? 6494 
2A3 tube impressions 6489 
Interesting analogy 6489 
NOS 2A3 tubes versus new tubes 6489 
Hmmm, let me try this one again... 6489 
Sylvania 2A3 identification 6489 
A picture is worth a thousand micromhos? 6489 
I have more interest in the period tubes 6489 
Why NOS tubes? 6488 
The Holly Ignorance 6488 
Tube tasting 6488 
The cathodes’ flatulence? 6488 
Make mine thoriated please 6488 
Any Germans out there? 6488 
6E5P VS 6E6P 6488 
Vibrations? What do you with them? 6488 
Vibration in tubes and sounds 6488 
UX4 vs UX4ruskie 6487 
Ringing the tubes? I do not know how about that. 6487 
Tube sound and vibration 6487 
The thoughts collection about YO186? 6481 
The lights look green for the YO tube 6480 
"Melquiades" with YO-186. Something like... 6480 
My version of RE-604 and PX4 6479 
The YO186 tube sockets. 6479 
B4/B5 British made 6478 
The YO186’s sockets and prices 6478 
DHT 2A3 amplifier rectification 6477 
My attitude toward tube rectification. 6477 
Tu-be or not Tu-be, seems Tu-be the question. 6476 
It looks like DHT DSET is shaping up. 6475 
The Sylvania 2A3 NOS report 6472 
The Citizen Kane syndrome. 6472 
Sylvania 2A3 in a World without Color 6471 
Are NOS and new manufacture comparing oranges to o... 6471 
That all is incorrect in a way…. 6471 
NOS vs new 2A3 tubes 6471 
The identical operation environment? 6471 
Preferred 2A3 operating point 6471 
The sound of the 2A3 however? 6471 
Circuit modification for 2A3 optimization 6470 
How to get max power from 2A3 6470 
2A3 voltages, loads and realized output power 6470 
Optimal operation of 2A3: an experiment 6470 
Tubes, Whole Circuits, Expectations and Sound 6470 
Gain is not power. 6470 
2A3 amplifier modification & Optimization 6470 
Specialized DSET approach 6470 
6C33/2A3 DSET? 6470 
SET usable power and making the most of it 6470 
The 2A3 loading 6470 
DSET solution for EdgarHorn? 6470 
Optimizing the 2A3 6470 
How much to DSET a DSET 6470 
DSET for Titan 6470 
The Best of All Worlds 6470 
Multiamp setup 6469 
Optimizing the (NOS) 2A3... "KM-style"? 6469 
There are many opportunities, it all depends what ... 6469 
Modifying amplifer to optimize NOS 2A3 performance 6469 
Conceptualizing Melquiades DSET is done 6463 
2A3 and 400V supply 6463 
Pudding and the chicken wires 6462 
Another shot at numbers 6462 
How to cook the "uninformed" anode. 6462 
Okay, so this might work.... 6462 
The DHT Milq DSET, the prebuilt draft. 6462 
Looks good, but.... 6461 
2A3 with slightly lover filament voltage? 6461 
Less is more... usually. 6461 
Where to burn gain? how? and where to get beter st... 6460 
Stepping Out 6460 
Said to be good, but 6460 
Gain to lose 6460 
Why nothing is simple with this damn amp! 6460 
Another idea for losing gain 6460 
What's best 6460 
Options, options... 6460 
Actually, it is not so bad. 6460 
Other compromises... 6459 
Cathode vs. fixed with DHT 6458 
Is it glowing yet? 6438 
It is comming.... 6438 
The new MF channel. 6432 
I started to work on the Milq’s DHT Island. 6431 
Innerstage loading vs. OPT loading. 6423 
The intestage loading talk. 6420 
My playback feels like it is broken. 6415 
1 in 50? 6415 
Yes, it was after PP2000 6415 
Die Walküre soldering. 6414 
The post Die Walküre soldering 6413 
Another amp arond YO186 6412 
Gain? 6412 
The Unexpected problem with DHT Milq. 6412 
Simple is good 6411 
Ok, I am moving forward. 6411 
The Milq DSET is up. 6410 
My DH DSET – 2 days later. 6408 
Here is more data to reconcile. 6408 
Hm, that is interesting and unpleasant so far. 6407 
Ok, what do I want? 6407 
Let Go of Some Conceptual "Restrictions"? 6407 
The Milq DH DSET, the further thoughts in progress. 6407 
Crunching Numbers; Shaping Sound 6407 
How about the tweeter? 6406 
Tweeter Efficiency? 6406 
Safe and Sound 6406 
More mystery with tweeter but still on the subject. 6406 
Some clarifications. 6406 
How about that?!!! 6406 
Further considerations: DC-coupling. 6404 
Head Room 6404 
To kill the mandatory 13dB 6403 
DC coupling and killing 13db and driving 6e5p miller and.... 6403 
I do not think that it might be damaging… 6403 
Again with the PS 6403 
AKA J.C. Morrison’s amp but… 6401 
Parallel Universe 6401 
Melquiades HD MF DSET, Draft13. 6399 
Why I let other people build them... 6399 
Ok, it's going to right direction. 6399 
Ok, it looks already very close…. 6398 
The Loftinish-Whitish, well sort of…. 6395 
MF: the pre-final version. 6395 
Loftin-White? 6395 
Did anyone hear the PX4 amplifiers? 6395 
What Could use Improving at This Point? 6395 
The Milq’s MF front-end is done 6391 
Why I Let Other People Build Them, II 6391 
Define really quiet 6390 
Another variable of sound 6390 
Backlash? 6390 
Alternative filament supplies 6390 
I kind of faced a problem with AC 6390 
Going down the DC path 6389 
It is not about the “whole sound” but about “molec... 6389 
Molecular sound 6389 
AC-DC heater supply 6389 
The Tentlabs are $10 worth PS. 6389 
The unexpected resolution of AC vs. DC quandary. 6389 
The devil is less scared than it depicted. 6389 
Hiss or Hum 6389 
AC transformers 6389 
I have seen the Promised Land 6388 
OK, the choke noise is not a problem anymore 6388 
Ok, it is working fine but… 6387 
Divide and Conquer 6387 
The design phase is over. 6386 
The unexpected insanity! 6385 
Loading 6385 
Looking for inspiring ideas for 'universal' loadin... 6385 
A filaments Sherlock Holmes wanted. 6385 
Going the Distance 6385 
Read the f*** manual! 6385 
Agreed. 6385 
I agree 6385 
The filament transformer 6385 
Center-tap and options 6385 
Something like this…. 6385 
Avoiding "Dial-an-Amp" 6385 
The foreplay is going on. 6385 
Split balance 6384 
Further thoughts about my DH filaments 6384 
The Shuguang 2A3 tubes. 6384 
SHuguang 6384 
Going through…. 6383 
The 2.5V noise vs. 4V noise. 6382 
More about Shuguang 2A3C 6382 
Hum vs voltage 6382 
Meow about the tubes… 6382 
To Be a Content Cat 6382 
Completed! 6379 
Tradition 6379 
Absolutely beautiful! 6379 
The 'film' caps in PS 6378 
Science or religion 6378 
Mass Extinction 6378 
Electrolytics, technology and time 6378 
No more questions about PS capacitors. 6378 
Capacitor choices 6378 
Good time. Welcome back. Thanks God. 6377 
The minor day of Quartets. 6377 
Them's the Breaks 6377 
Eventually! 6376 
So Soon? 6376 
DHT MF channel and 6-ch amp: first conclusions 6376 
All Abuzz about Nothing 6375 
The wire for DC-coupling 6375 
The Dirt on DIY Backlash 6375 
DSET vs. the “better tubes”. 6375 
How to test the DH tubes properly? 6374 
Pairing up tubes for SE use 6373 
The DHT live reserve 6372 
Some interestng models 6372 
Eaten alive. 6372 
The tubey déjà vu? 6371 
The new concept of my output transformer. 6367 
The 4V takes a lead. 6363 
Listening the DH and the striped down version of M... 6360 
I kind of slowly learn what I need. 6360 
More HF from a transformer and DHT? 6358 
Since You Don't Need the Gain 6357 
Exiting the design mode? 6357 
Bye-bye the input divider on MF! 6357 
A few steps back and a gaint leap ahead. 6353 
Single-stage vs. DHT amp. 6352 
Setting up the new Playback 6351 
And the winner is… so far 6348 
If you like type 45... 6348 
Type 45... they're not all the same 6348 
Favorite Flavor? 6348 
The 45 times Meow... 6348 
The problem that I see is… 6348 
Running the 45 6348 
The 10Y...and bye bye Newton 6347 
The commentaries about everything. 6347 
Driver tube and biasing 6347 
DHT drivers 6347 
The ideas are worth trying? 6347 
A question about the polishing the things…. 6343 
The Particular Tube, I'm afraid... 6343 
Driving the 45... cathode first 6342 
ST or Globe; old or new... 6342 
Whatever sticks to the wall as an operation point ... 6342 
The attenuating crap in secondary. 6342 
Operating points and cathode current 6342 
The Burgeoning Opportunities! 6342 
Actually it is not so simple. 6342 
Resistors at the front 6341 
A minor alternation of a position 6341 
The era of enlightenment. 6338 
The devil is in the details.... 6338 
Constructing Sound 6338 
A new view on the DHT evaluation. 6337 
The “strange” YO186 6328 
The dead guy’s lessons. 6283 
2S4S and 2A3 6274 
Ho to use the YO186 6267 
YO 186 fundamental flavor 6267 
The YO-YO tube and "fundamentals" channel 6267 
The live without the YO186, again.... 6265 
Not anymore! 6254 
The very good YoYonisation! 6253 
….above and below two very clean channel. 6252 
The DHT and esoteric imaging deformation. 6239 
DHT, YO186, or??? 6239 
I had no idea how ‘different’ it is. 6186 
The Kazitsky Manufacturing and YO104, some history. 6185 
"Absolution and Eternal Refuge." 6182 
Sofia Electric Type 45 Mesh 6172 
The true association of YO186's Sounds. 5934 
All the Best from Burgundy 5934 
Cheesy tubes 5933 
Me and my DHT references… 5824 
Y0-186 in winter. 5727 
Y0-186 sounds like… 5726 
Rethinking the YO186 tube. 5695 
In My Dreams 5695 
Grunt from type 45? A ridicules comment. 5695 
Blame? 5694 
When good is not good enough. 5694 
45s, Drivers, and 45s 5694 
Hm, that was so simple after all! 5693 
How the YO186 was used. 5277 
What is old is new? 5276 
YO186 vs. type 45. 5275 
The YO186 is gone.... :-( 4824 
That sucks. 4824 
YO186 4822 
Hm, what the hell is going on? 4822 
I do not think that anybody but me would like YO186 4822 
A hallucination? 4819 
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