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Audio Knowledge Tree ™
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Melquiades SET Amplifier
Macondo Acoustic System
End of Life Phonostage
Audio Demoronizator AD-1
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My Playback System
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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 6473 
One-stage Milq++ and the DHT's alleged tone 6472 
DHT Milq? 6472 
The DHT journey. 6472 
DHT tone 6472 
Well, why not? 6471 
Holding the Fort 6471 
My DHT experiment: Preface 6471 
Input tube and DC heaters 6470 
Reimyo Pat 777 6470 
My DHT experiment: Observations 6466 
DHT or 300B? 6466 
300B 6466 
Talking, perception and the grounds for objectively 6466 
The Wine Via the Wine Glass 6465 
Hence the confusion 6465 
My DHT experiment: some conclusions. 6465 
Reality Reconstruction is not a functionality. 6465 
My experience with DHTs 6465 
Pigmented coloration? 6465 
Dht-dht 6465 
Dynamic viscosity? 6465 
The Pallette preamp... 6465 
If one DHT is good, two must be better? 6465 
"soul" of tubes 6465 
There is a difference... 6465 
Vibration injection? 6465 
Homework # 4334 6465 
The 01A-71A-10Y-45 chain 6465 
Old valves have more soul! 6464 
Was it soul or soil? 6464 
It was just a heading 6464 
Adjustable color: TIMBRE LOCK? 6464 
Neutral or neutral/uncoloured? 6464 
..are lacking in power, dynamics and bandwidth. 6464 
Timbre-Lock. Not quite ready for prime time. 6464 
Injection of analog dither? 6464 
Subliminal signal 6464 
The idea of analog randomanization. 6464 
Okay, what Avicena Power Generator 6464 
I hope you will be hearing about it. 6463 
Avicenna = Arabian 6463 
Persian, not Arab 6463 
The “second solution” - a major disappointment 6463 
More words to describe "sux" please 6463 
Revolution 6463 
The non-melodramatic DHT? 6463 
One-stage DHTs 6462 
One other thing 6462 
One stage 6462 
Brewing, thinking and heating 6462 
Physical characteristics of electronic devices 6462 
I see the things differently. 6462 
Don't waste time being "creative" 6462 
The audiophile attitude 6462 
The where and why of design choices 6462 
Blah blah blah 6462 
Laconic Clarity vs. Comfort vs. Nostalgia 6462 
Do I need to be hissing? 6462 
...associated with lack of neutrality and colorati... 6462 
John Broskie's Partial feedback amplifier 6462 
Randomness vs. freedom and the Homework # 4334 6461 
What is randomness? 6461 
Those least three possibilities… 6461 
Randomness and Music's Prerogative 6461 
It works, … sort of. The revolution is canceled. 6461 
Thorsten Loesch’s article about DHT SETs 6459 
A Beautiful Mind 6458 
Some summary and conclusions from the first phase. 6456 
Second phase: revising requirement for my DHT objectives. 6441 
Tubes for your DHT amp 6441 
Abandoning Milq? 6441 
Will see how it goes.... 6441 
Single-stage Milq vs. Sun Audio VT-2A3 6439 
Topology and 2A3? 6439 
6SN7-2A3 amps? 6439 
Type Casting 6439 
Sun Audio SV-2A3 6439 
6sn7-2a3 6439 
Topology vs parts 6439 
For a DHT amp, you are listening to the power supply 6439 
The vintage tubes syndrome. 6439 
Parts Frenzy 6439 
Too many new sounds 6439 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6438 
New tubes 6437 
Milq bias vs. batery bias 6437 
The batteries are a tricky thing. 6437 
Swimming the ocean at night? 6437 
New 2A3 6437 
To kill of do not kill the capacitor. 6436 
The JJ Electronic amp. 6435 
JJ 2A3 and amp 6435 
Czech tubes 6433 
Single plated vs Double plated? 6433 
Mono plate 2A3 tubes 6433 
I suggested once VT52 tube 6432 
The 800R vs. 1800R vs. 5500R 6432 
YO-186 as the output tube. 6429 
Here she is. 6428 
Some talks about the new production tubes 6424 
New 2A3 tubes 6424 
Some thoughts about one-IHT vs. multiple-DHT 6424 
The Sun Audio with 6E5P 6423 
Multistage DHT circuits 6422 
Wrong tube or wrong topology – here is the question. 6421 
Emission Labs 2A3 6421 
Some comment and questions about then 2A3 talks. 6421 
Which Chinese 2A3? 6421 
OK, for a first time I like the San Audio Kit. 6421 
The YO186 Strip Show 6421 
More on the 2A3 comparisons 6420 
It will be interesting…. 6420 
OPT impedence 6420 
More about the Plate Loading 6420 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6415 
2A3 data 6415 
The New 2A3 tubes 6415 
How many stages I need for 110dB sensitivity, smal... 6415 
How many stages and why... and who makes that 45 o... 6414 
Everything about everything. 6414 
Some very good points... and... possibly more logi... 6414 
Options, options, options.... 6414 
I think we agree overall 6414 
An IDHT with more gain? 6413 
You don't ask for much now, eh? 6413 
2A3 tube impressions 6408 
Interesting analogy 6408 
NOS 2A3 tubes versus new tubes 6408 
Hmmm, let me try this one again... 6408 
Sylvania 2A3 identification 6408 
A picture is worth a thousand micromhos? 6408 
I have more interest in the period tubes 6408 
Why NOS tubes? 6407 
The Holly Ignorance 6407 
Tube tasting 6407 
The cathodes’ flatulence? 6407 
Make mine thoriated please 6407 
Any Germans out there? 6407 
6E5P VS 6E6P 6407 
Vibrations? What do you with them? 6407 
Vibration in tubes and sounds 6407 
UX4 vs UX4ruskie 6406 
Ringing the tubes? I do not know how about that. 6406 
Tube sound and vibration 6406 
The thoughts collection about YO186? 6400 
The lights look green for the YO tube 6399 
"Melquiades" with YO-186. Something like... 6399 
My version of RE-604 and PX4 6398 
The YO186 tube sockets. 6398 
B4/B5 British made 6397 
The YO186’s sockets and prices 6397 
DHT 2A3 amplifier rectification 6396 
My attitude toward tube rectification. 6396 
Tu-be or not Tu-be, seems Tu-be the question. 6395 
It looks like DHT DSET is shaping up. 6394 
The Sylvania 2A3 NOS report 6391 
The Citizen Kane syndrome. 6391 
Sylvania 2A3 in a World without Color 6390 
Are NOS and new manufacture comparing oranges to o... 6390 
That all is incorrect in a way…. 6390 
NOS vs new 2A3 tubes 6390 
The identical operation environment? 6390 
Preferred 2A3 operating point 6390 
The sound of the 2A3 however? 6390 
Circuit modification for 2A3 optimization 6389 
How to get max power from 2A3 6389 
2A3 voltages, loads and realized output power 6389 
Optimal operation of 2A3: an experiment 6389 
Tubes, Whole Circuits, Expectations and Sound 6389 
Gain is not power. 6389 
2A3 amplifier modification & Optimization 6389 
Specialized DSET approach 6389 
6C33/2A3 DSET? 6389 
SET usable power and making the most of it 6389 
The 2A3 loading 6389 
DSET solution for EdgarHorn? 6389 
Optimizing the 2A3 6389 
How much to DSET a DSET 6389 
DSET for Titan 6389 
The Best of All Worlds 6389 
Multiamp setup 6388 
Optimizing the (NOS) 2A3... "KM-style"? 6388 
There are many opportunities, it all depends what ... 6388 
Modifying amplifer to optimize NOS 2A3 performance 6388 
Conceptualizing Melquiades DSET is done 6382 
2A3 and 400V supply 6382 
Pudding and the chicken wires 6381 
Another shot at numbers 6381 
How to cook the "uninformed" anode. 6381 
Okay, so this might work.... 6381 
The DHT Milq DSET, the prebuilt draft. 6381 
Looks good, but.... 6380 
2A3 with slightly lover filament voltage? 6380 
Less is more... usually. 6380 
Where to burn gain? how? and where to get beter st... 6379 
Stepping Out 6379 
Said to be good, but 6379 
Gain to lose 6379 
Why nothing is simple with this damn amp! 6379 
Another idea for losing gain 6379 
What's best 6379 
Options, options... 6379 
Actually, it is not so bad. 6379 
Other compromises... 6378 
Cathode vs. fixed with DHT 6377 
Is it glowing yet? 6357 
It is comming.... 6357 
The new MF channel. 6351 
I started to work on the Milq’s DHT Island. 6350 
Innerstage loading vs. OPT loading. 6342 
The intestage loading talk. 6339 
My playback feels like it is broken. 6334 
1 in 50? 6334 
Yes, it was after PP2000 6334 
Die Walküre soldering. 6333 
The post Die Walküre soldering 6332 
Another amp arond YO186 6331 
Gain? 6331 
The Unexpected problem with DHT Milq. 6331 
Simple is good 6330 
Ok, I am moving forward. 6330 
The Milq DSET is up. 6329 
My DH DSET – 2 days later. 6327 
Here is more data to reconcile. 6327 
Hm, that is interesting and unpleasant so far. 6326 
Ok, what do I want? 6326 
Let Go of Some Conceptual "Restrictions"? 6326 
The Milq DH DSET, the further thoughts in progress. 6326 
Crunching Numbers; Shaping Sound 6326 
How about the tweeter? 6325 
Tweeter Efficiency? 6325 
Safe and Sound 6325 
More mystery with tweeter but still on the subject. 6325 
Some clarifications. 6325 
How about that?!!! 6325 
Further considerations: DC-coupling. 6323 
Head Room 6323 
To kill the mandatory 13dB 6322 
DC coupling and killing 13db and driving 6e5p miller and.... 6322 
I do not think that it might be damaging… 6322 
Again with the PS 6322 
AKA J.C. Morrison’s amp but… 6320 
Parallel Universe 6320 
Melquiades HD MF DSET, Draft13. 6318 
Why I let other people build them... 6318 
Ok, it's going to right direction. 6318 
Ok, it looks already very close…. 6317 
The Loftinish-Whitish, well sort of…. 6314 
MF: the pre-final version. 6314 
Loftin-White? 6314 
Did anyone hear the PX4 amplifiers? 6314 
What Could use Improving at This Point? 6314 
The Milq’s MF front-end is done 6310 
Why I Let Other People Build Them, II 6310 
Define really quiet 6309 
Another variable of sound 6309 
Backlash? 6309 
Alternative filament supplies 6309 
I kind of faced a problem with AC 6309 
Going down the DC path 6308 
It is not about the “whole sound” but about “molec... 6308 
Molecular sound 6308 
AC-DC heater supply 6308 
The Tentlabs are $10 worth PS. 6308 
The unexpected resolution of AC vs. DC quandary. 6308 
The devil is less scared than it depicted. 6308 
Hiss or Hum 6308 
AC transformers 6308 
I have seen the Promised Land 6307 
OK, the choke noise is not a problem anymore 6307 
Ok, it is working fine but… 6306 
Divide and Conquer 6306 
The design phase is over. 6305 
The unexpected insanity! 6304 
Loading 6304 
Looking for inspiring ideas for 'universal' loadin... 6304 
A filaments Sherlock Holmes wanted. 6304 
Going the Distance 6304 
Read the f*** manual! 6304 
Agreed. 6304 
I agree 6304 
The filament transformer 6304 
Center-tap and options 6304 
Something like this…. 6304 
Avoiding "Dial-an-Amp" 6304 
The foreplay is going on. 6304 
Split balance 6303 
Further thoughts about my DH filaments 6303 
The Shuguang 2A3 tubes. 6303 
SHuguang 6303 
Going through…. 6302 
The 2.5V noise vs. 4V noise. 6301 
More about Shuguang 2A3C 6301 
Hum vs voltage 6301 
Meow about the tubes… 6301 
To Be a Content Cat 6301 
Completed! 6298 
Tradition 6298 
Absolutely beautiful! 6298 
The 'film' caps in PS 6297 
Science or religion 6297 
Mass Extinction 6297 
Electrolytics, technology and time 6297 
No more questions about PS capacitors. 6297 
Capacitor choices 6297 
Good time. Welcome back. Thanks God. 6296 
The minor day of Quartets. 6296 
Them's the Breaks 6296 
Eventually! 6295 
So Soon? 6295 
DHT MF channel and 6-ch amp: first conclusions 6295 
All Abuzz about Nothing 6294 
The wire for DC-coupling 6294 
The Dirt on DIY Backlash 6294 
DSET vs. the “better tubes”. 6294 
How to test the DH tubes properly? 6293 
Pairing up tubes for SE use 6292 
The DHT live reserve 6291 
Some interestng models 6291 
Eaten alive. 6291 
The tubey déjà vu? 6290 
The new concept of my output transformer. 6286 
The 4V takes a lead. 6282 
Listening the DH and the striped down version of M... 6279 
I kind of slowly learn what I need. 6279 
More HF from a transformer and DHT? 6277 
Since You Don't Need the Gain 6276 
Exiting the design mode? 6276 
Bye-bye the input divider on MF! 6276 
A few steps back and a gaint leap ahead. 6272 
Single-stage vs. DHT amp. 6271 
Setting up the new Playback 6270 
And the winner is… so far 6267 
If you like type 45... 6267 
Type 45... they're not all the same 6267 
Favorite Flavor? 6267 
The 45 times Meow... 6267 
The problem that I see is… 6267 
Running the 45 6267 
The 10Y...and bye bye Newton 6266 
The commentaries about everything. 6266 
Driver tube and biasing 6266 
DHT drivers 6266 
The ideas are worth trying? 6266 
A question about the polishing the things…. 6262 
The Particular Tube, I'm afraid... 6262 
Driving the 45... cathode first 6261 
ST or Globe; old or new... 6261 
Whatever sticks to the wall as an operation point ... 6261 
The attenuating crap in secondary. 6261 
Operating points and cathode current 6261 
The Burgeoning Opportunities! 6261 
Actually it is not so simple. 6261 
Resistors at the front 6260 
A minor alternation of a position 6260 
The era of enlightenment. 6257 
The devil is in the details.... 6257 
Constructing Sound 6257 
A new view on the DHT evaluation. 6256 
The “strange” YO186 6247 
The dead guy’s lessons. 6202 
2S4S and 2A3 6193 
Ho to use the YO186 6186 
YO 186 fundamental flavor 6186 
The YO-YO tube and "fundamentals" channel 6186 
The live without the YO186, again.... 6184 
Not anymore! 6173 
The very good YoYonisation! 6172 
….above and below two very clean channel. 6171 
The DHT and esoteric imaging deformation. 6158 
DHT, YO186, or??? 6158 
I had no idea how ‘different’ it is. 6105 
The Kazitsky Manufacturing and YO104, some history. 6104 
"Absolution and Eternal Refuge." 6101 
Sofia Electric Type 45 Mesh 6091 
The true association of YO186's Sounds. 5853 
All the Best from Burgundy 5853 
Cheesy tubes 5852 
Me and my DHT references… 5743 
Y0-186 in winter. 5646 
Y0-186 sounds like… 5645 
Rethinking the YO186 tube. 5614 
In My Dreams 5614 
Grunt from type 45? A ridicules comment. 5614 
Blame? 5613 
When good is not good enough. 5613 
45s, Drivers, and 45s 5613 
Hm, that was so simple after all! 5612 
How the YO186 was used. 5196 
What is old is new? 5195 
YO186 vs. type 45. 5194 
The YO186 is gone.... :-( 4743 
That sucks. 4743 
YO186 4741 
Hm, what the hell is going on? 4741 
I do not think that anybody but me would like YO186 4741 
A hallucination? 4738 
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