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Site News: 17 May 2026

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Romy The Cat's Playback
Audio Knowledge Tree ™
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Audiophile Satire
Melquiades SET Amplifier
Macondo Acoustic 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 6423 
One-stage Milq++ and the DHT's alleged tone 6422 
DHT Milq? 6422 
The DHT journey. 6422 
DHT tone 6422 
Well, why not? 6421 
Holding the Fort 6421 
My DHT experiment: Preface 6421 
Input tube and DC heaters 6420 
Reimyo Pat 777 6420 
My DHT experiment: Observations 6416 
DHT or 300B? 6416 
300B 6416 
Talking, perception and the grounds for objectively 6416 
The Wine Via the Wine Glass 6415 
Hence the confusion 6415 
My DHT experiment: some conclusions. 6415 
Reality Reconstruction is not a functionality. 6415 
My experience with DHTs 6415 
Pigmented coloration? 6415 
Dht-dht 6415 
Dynamic viscosity? 6415 
The Pallette preamp... 6415 
If one DHT is good, two must be better? 6415 
"soul" of tubes 6415 
There is a difference... 6415 
Vibration injection? 6415 
Homework # 4334 6415 
The 01A-71A-10Y-45 chain 6415 
Old valves have more soul! 6414 
Was it soul or soil? 6414 
It was just a heading 6414 
Adjustable color: TIMBRE LOCK? 6414 
Neutral or neutral/uncoloured? 6414 
..are lacking in power, dynamics and bandwidth. 6414 
Timbre-Lock. Not quite ready for prime time. 6414 
Injection of analog dither? 6414 
Subliminal signal 6414 
The idea of analog randomanization. 6414 
Okay, what Avicena Power Generator 6414 
I hope you will be hearing about it. 6413 
Avicenna = Arabian 6413 
Persian, not Arab 6413 
The “second solution” - a major disappointment 6413 
More words to describe "sux" please 6413 
Revolution 6413 
The non-melodramatic DHT? 6413 
One-stage DHTs 6412 
One other thing 6412 
One stage 6412 
Brewing, thinking and heating 6412 
Physical characteristics of electronic devices 6412 
I see the things differently. 6412 
Don't waste time being "creative" 6412 
The audiophile attitude 6412 
The where and why of design choices 6412 
Blah blah blah 6412 
Laconic Clarity vs. Comfort vs. Nostalgia 6412 
Do I need to be hissing? 6412 
...associated with lack of neutrality and colorati... 6412 
John Broskie's Partial feedback amplifier 6412 
Randomness vs. freedom and the Homework # 4334 6411 
What is randomness? 6411 
Those least three possibilities… 6411 
Randomness and Music's Prerogative 6411 
It works, … sort of. The revolution is canceled. 6411 
Thorsten Loesch’s article about DHT SETs 6409 
A Beautiful Mind 6408 
Some summary and conclusions from the first phase. 6406 
Second phase: revising requirement for my DHT objectives. 6391 
Tubes for your DHT amp 6391 
Abandoning Milq? 6391 
Will see how it goes.... 6391 
Single-stage Milq vs. Sun Audio VT-2A3 6389 
Topology and 2A3? 6389 
6SN7-2A3 amps? 6389 
Type Casting 6389 
Sun Audio SV-2A3 6389 
6sn7-2a3 6389 
Topology vs parts 6389 
For a DHT amp, you are listening to the power supply 6389 
The vintage tubes syndrome. 6389 
Parts Frenzy 6389 
Too many new sounds 6389 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6388 
New tubes 6387 
Milq bias vs. batery bias 6387 
The batteries are a tricky thing. 6387 
Swimming the ocean at night? 6387 
New 2A3 6387 
To kill of do not kill the capacitor. 6386 
The JJ Electronic amp. 6385 
JJ 2A3 and amp 6385 
Czech tubes 6383 
Single plated vs Double plated? 6383 
Mono plate 2A3 tubes 6383 
I suggested once VT52 tube 6382 
The 800R vs. 1800R vs. 5500R 6382 
YO-186 as the output tube. 6379 
Here she is. 6378 
Some talks about the new production tubes 6374 
New 2A3 tubes 6374 
Some thoughts about one-IHT vs. multiple-DHT 6374 
The Sun Audio with 6E5P 6373 
Multistage DHT circuits 6372 
Wrong tube or wrong topology – here is the question. 6371 
Emission Labs 2A3 6371 
Some comment and questions about then 2A3 talks. 6371 
Which Chinese 2A3? 6371 
OK, for a first time I like the San Audio Kit. 6371 
The YO186 Strip Show 6371 
More on the 2A3 comparisons 6370 
It will be interesting…. 6370 
OPT impedence 6370 
More about the Plate Loading 6370 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6365 
2A3 data 6365 
The New 2A3 tubes 6365 
How many stages I need for 110dB sensitivity, smal... 6365 
How many stages and why... and who makes that 45 o... 6364 
Everything about everything. 6364 
Some very good points... and... possibly more logi... 6364 
Options, options, options.... 6364 
I think we agree overall 6364 
An IDHT with more gain? 6363 
You don't ask for much now, eh? 6363 
2A3 tube impressions 6358 
Interesting analogy 6358 
NOS 2A3 tubes versus new tubes 6358 
Hmmm, let me try this one again... 6358 
Sylvania 2A3 identification 6358 
A picture is worth a thousand micromhos? 6358 
I have more interest in the period tubes 6358 
Why NOS tubes? 6357 
The Holly Ignorance 6357 
Tube tasting 6357 
The cathodes’ flatulence? 6357 
Make mine thoriated please 6357 
Any Germans out there? 6357 
6E5P VS 6E6P 6357 
Vibrations? What do you with them? 6357 
Vibration in tubes and sounds 6357 
UX4 vs UX4ruskie 6356 
Ringing the tubes? I do not know how about that. 6356 
Tube sound and vibration 6356 
The thoughts collection about YO186? 6350 
The lights look green for the YO tube 6349 
"Melquiades" with YO-186. Something like... 6349 
My version of RE-604 and PX4 6348 
The YO186 tube sockets. 6348 
B4/B5 British made 6347 
The YO186’s sockets and prices 6347 
DHT 2A3 amplifier rectification 6346 
My attitude toward tube rectification. 6346 
Tu-be or not Tu-be, seems Tu-be the question. 6345 
It looks like DHT DSET is shaping up. 6344 
The Sylvania 2A3 NOS report 6341 
The Citizen Kane syndrome. 6341 
Sylvania 2A3 in a World without Color 6340 
Are NOS and new manufacture comparing oranges to o... 6340 
That all is incorrect in a way…. 6340 
NOS vs new 2A3 tubes 6340 
The identical operation environment? 6340 
Preferred 2A3 operating point 6340 
The sound of the 2A3 however? 6340 
Circuit modification for 2A3 optimization 6339 
How to get max power from 2A3 6339 
2A3 voltages, loads and realized output power 6339 
Optimal operation of 2A3: an experiment 6339 
Tubes, Whole Circuits, Expectations and Sound 6339 
Gain is not power. 6339 
2A3 amplifier modification & Optimization 6339 
Specialized DSET approach 6339 
6C33/2A3 DSET? 6339 
SET usable power and making the most of it 6339 
The 2A3 loading 6339 
DSET solution for EdgarHorn? 6339 
Optimizing the 2A3 6339 
How much to DSET a DSET 6339 
DSET for Titan 6339 
The Best of All Worlds 6339 
Multiamp setup 6338 
Optimizing the (NOS) 2A3... "KM-style"? 6338 
There are many opportunities, it all depends what ... 6338 
Modifying amplifer to optimize NOS 2A3 performance 6338 
Conceptualizing Melquiades DSET is done 6332 
2A3 and 400V supply 6332 
Pudding and the chicken wires 6331 
Another shot at numbers 6331 
How to cook the "uninformed" anode. 6331 
Okay, so this might work.... 6331 
The DHT Milq DSET, the prebuilt draft. 6331 
Looks good, but.... 6330 
2A3 with slightly lover filament voltage? 6330 
Less is more... usually. 6330 
Where to burn gain? how? and where to get beter st... 6329 
Stepping Out 6329 
Said to be good, but 6329 
Gain to lose 6329 
Why nothing is simple with this damn amp! 6329 
Another idea for losing gain 6329 
What's best 6329 
Options, options... 6329 
Actually, it is not so bad. 6329 
Other compromises... 6328 
Cathode vs. fixed with DHT 6327 
Is it glowing yet? 6307 
It is comming.... 6307 
The new MF channel. 6301 
I started to work on the Milq’s DHT Island. 6300 
Innerstage loading vs. OPT loading. 6292 
The intestage loading talk. 6289 
My playback feels like it is broken. 6284 
1 in 50? 6284 
Yes, it was after PP2000 6284 
Die Walküre soldering. 6283 
The post Die Walküre soldering 6282 
Another amp arond YO186 6281 
Gain? 6281 
The Unexpected problem with DHT Milq. 6281 
Simple is good 6280 
Ok, I am moving forward. 6280 
The Milq DSET is up. 6279 
My DH DSET – 2 days later. 6277 
Here is more data to reconcile. 6277 
Hm, that is interesting and unpleasant so far. 6276 
Ok, what do I want? 6276 
Let Go of Some Conceptual "Restrictions"? 6276 
The Milq DH DSET, the further thoughts in progress. 6276 
Crunching Numbers; Shaping Sound 6276 
How about the tweeter? 6275 
Tweeter Efficiency? 6275 
Safe and Sound 6275 
More mystery with tweeter but still on the subject. 6275 
Some clarifications. 6275 
How about that?!!! 6275 
Further considerations: DC-coupling. 6273 
Head Room 6273 
To kill the mandatory 13dB 6272 
DC coupling and killing 13db and driving 6e5p miller and.... 6272 
I do not think that it might be damaging… 6272 
Again with the PS 6272 
AKA J.C. Morrison’s amp but… 6270 
Parallel Universe 6270 
Melquiades HD MF DSET, Draft13. 6268 
Why I let other people build them... 6268 
Ok, it's going to right direction. 6268 
Ok, it looks already very close…. 6267 
The Loftinish-Whitish, well sort of…. 6264 
MF: the pre-final version. 6264 
Loftin-White? 6264 
Did anyone hear the PX4 amplifiers? 6264 
What Could use Improving at This Point? 6264 
The Milq’s MF front-end is done 6260 
Why I Let Other People Build Them, II 6260 
Define really quiet 6259 
Another variable of sound 6259 
Backlash? 6259 
Alternative filament supplies 6259 
I kind of faced a problem with AC 6259 
Going down the DC path 6258 
It is not about the “whole sound” but about “molec... 6258 
Molecular sound 6258 
AC-DC heater supply 6258 
The Tentlabs are $10 worth PS. 6258 
The unexpected resolution of AC vs. DC quandary. 6258 
The devil is less scared than it depicted. 6258 
Hiss or Hum 6258 
AC transformers 6258 
I have seen the Promised Land 6257 
OK, the choke noise is not a problem anymore 6257 
Ok, it is working fine but… 6256 
Divide and Conquer 6256 
The design phase is over. 6255 
The unexpected insanity! 6254 
Loading 6254 
Looking for inspiring ideas for 'universal' loadin... 6254 
A filaments Sherlock Holmes wanted. 6254 
Going the Distance 6254 
Read the f*** manual! 6254 
Agreed. 6254 
I agree 6254 
The filament transformer 6254 
Center-tap and options 6254 
Something like this…. 6254 
Avoiding "Dial-an-Amp" 6254 
The foreplay is going on. 6254 
Split balance 6253 
Further thoughts about my DH filaments 6253 
The Shuguang 2A3 tubes. 6253 
SHuguang 6253 
Going through…. 6252 
The 2.5V noise vs. 4V noise. 6251 
More about Shuguang 2A3C 6251 
Hum vs voltage 6251 
Meow about the tubes… 6251 
To Be a Content Cat 6251 
Completed! 6248 
Tradition 6248 
Absolutely beautiful! 6248 
The 'film' caps in PS 6247 
Science or religion 6247 
Mass Extinction 6247 
Electrolytics, technology and time 6247 
No more questions about PS capacitors. 6247 
Capacitor choices 6247 
Good time. Welcome back. Thanks God. 6246 
The minor day of Quartets. 6246 
Them's the Breaks 6246 
Eventually! 6245 
So Soon? 6245 
DHT MF channel and 6-ch amp: first conclusions 6245 
All Abuzz about Nothing 6244 
The wire for DC-coupling 6244 
The Dirt on DIY Backlash 6244 
DSET vs. the “better tubes”. 6244 
How to test the DH tubes properly? 6243 
Pairing up tubes for SE use 6242 
The DHT live reserve 6241 
Some interestng models 6241 
Eaten alive. 6241 
The tubey déjà vu? 6240 
The new concept of my output transformer. 6236 
The 4V takes a lead. 6232 
Listening the DH and the striped down version of M... 6229 
I kind of slowly learn what I need. 6229 
More HF from a transformer and DHT? 6227 
Since You Don't Need the Gain 6226 
Exiting the design mode? 6226 
Bye-bye the input divider on MF! 6226 
A few steps back and a gaint leap ahead. 6222 
Single-stage vs. DHT amp. 6221 
Setting up the new Playback 6220 
And the winner is… so far 6217 
If you like type 45... 6217 
Type 45... they're not all the same 6217 
Favorite Flavor? 6217 
The 45 times Meow... 6217 
The problem that I see is… 6217 
Running the 45 6217 
The 10Y...and bye bye Newton 6216 
The commentaries about everything. 6216 
Driver tube and biasing 6216 
DHT drivers 6216 
The ideas are worth trying? 6216 
A question about the polishing the things…. 6212 
The Particular Tube, I'm afraid... 6212 
Driving the 45... cathode first 6211 
ST or Globe; old or new... 6211 
Whatever sticks to the wall as an operation point ... 6211 
The attenuating crap in secondary. 6211 
Operating points and cathode current 6211 
The Burgeoning Opportunities! 6211 
Actually it is not so simple. 6211 
Resistors at the front 6210 
A minor alternation of a position 6210 
The era of enlightenment. 6207 
The devil is in the details.... 6207 
Constructing Sound 6207 
A new view on the DHT evaluation. 6206 
The “strange” YO186 6197 
The dead guy’s lessons. 6152 
2S4S and 2A3 6143 
Ho to use the YO186 6136 
YO 186 fundamental flavor 6136 
The YO-YO tube and "fundamentals" channel 6136 
The live without the YO186, again.... 6134 
Not anymore! 6123 
The very good YoYonisation! 6122 
….above and below two very clean channel. 6121 
The DHT and esoteric imaging deformation. 6108 
DHT, YO186, or??? 6108 
I had no idea how ‘different’ it is. 6055 
The Kazitsky Manufacturing and YO104, some history. 6054 
"Absolution and Eternal Refuge." 6051 
Sofia Electric Type 45 Mesh 6041 
The true association of YO186's Sounds. 5803 
All the Best from Burgundy 5803 
Cheesy tubes 5802 
Me and my DHT references… 5693 
Y0-186 in winter. 5596 
Y0-186 sounds like… 5595 
Rethinking the YO186 tube. 5564 
In My Dreams 5564 
Grunt from type 45? A ridicules comment. 5564 
Blame? 5563 
When good is not good enough. 5563 
45s, Drivers, and 45s 5563 
Hm, that was so simple after all! 5562 
How the YO186 was used. 5146 
What is old is new? 5145 
YO186 vs. type 45. 5144 
The YO186 is gone.... :-( 4693 
That sucks. 4693 
YO186 4691 
Hm, what the hell is going on? 4691 
I do not think that anybody but me would like YO186 4691 
A hallucination? 4688 
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