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Site News: 17 May 2026

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Romy The Cat's Playback
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Melquiades SET Amplifier
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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 6427 
One-stage Milq++ and the DHT's alleged tone 6426 
DHT Milq? 6426 
The DHT journey. 6426 
DHT tone 6426 
Well, why not? 6425 
Holding the Fort 6425 
My DHT experiment: Preface 6425 
Input tube and DC heaters 6424 
Reimyo Pat 777 6424 
My DHT experiment: Observations 6420 
DHT or 300B? 6420 
300B 6420 
Talking, perception and the grounds for objectively 6420 
The Wine Via the Wine Glass 6419 
Hence the confusion 6419 
My DHT experiment: some conclusions. 6419 
Reality Reconstruction is not a functionality. 6419 
My experience with DHTs 6419 
Pigmented coloration? 6419 
Dht-dht 6419 
Dynamic viscosity? 6419 
The Pallette preamp... 6419 
If one DHT is good, two must be better? 6419 
"soul" of tubes 6419 
There is a difference... 6419 
Vibration injection? 6419 
Homework # 4334 6419 
The 01A-71A-10Y-45 chain 6419 
Old valves have more soul! 6418 
Was it soul or soil? 6418 
It was just a heading 6418 
Adjustable color: TIMBRE LOCK? 6418 
Neutral or neutral/uncoloured? 6418 
..are lacking in power, dynamics and bandwidth. 6418 
Timbre-Lock. Not quite ready for prime time. 6418 
Injection of analog dither? 6418 
Subliminal signal 6418 
The idea of analog randomanization. 6418 
Okay, what Avicena Power Generator 6418 
I hope you will be hearing about it. 6417 
Avicenna = Arabian 6417 
Persian, not Arab 6417 
The “second solution” - a major disappointment 6417 
More words to describe "sux" please 6417 
Revolution 6417 
The non-melodramatic DHT? 6417 
One-stage DHTs 6416 
One other thing 6416 
One stage 6416 
Brewing, thinking and heating 6416 
Physical characteristics of electronic devices 6416 
I see the things differently. 6416 
Don't waste time being "creative" 6416 
The audiophile attitude 6416 
The where and why of design choices 6416 
Blah blah blah 6416 
Laconic Clarity vs. Comfort vs. Nostalgia 6416 
Do I need to be hissing? 6416 
...associated with lack of neutrality and colorati... 6416 
John Broskie's Partial feedback amplifier 6416 
Randomness vs. freedom and the Homework # 4334 6415 
What is randomness? 6415 
Those least three possibilities… 6415 
Randomness and Music's Prerogative 6415 
It works, … sort of. The revolution is canceled. 6415 
Thorsten Loesch’s article about DHT SETs 6413 
A Beautiful Mind 6412 
Some summary and conclusions from the first phase. 6410 
Second phase: revising requirement for my DHT objectives. 6395 
Tubes for your DHT amp 6395 
Abandoning Milq? 6395 
Will see how it goes.... 6395 
Single-stage Milq vs. Sun Audio VT-2A3 6393 
Topology and 2A3? 6393 
6SN7-2A3 amps? 6393 
Type Casting 6393 
Sun Audio SV-2A3 6393 
6sn7-2a3 6393 
Topology vs parts 6393 
For a DHT amp, you are listening to the power supply 6393 
The vintage tubes syndrome. 6393 
Parts Frenzy 6393 
Too many new sounds 6393 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6392 
New tubes 6391 
Milq bias vs. batery bias 6391 
The batteries are a tricky thing. 6391 
Swimming the ocean at night? 6391 
New 2A3 6391 
To kill of do not kill the capacitor. 6390 
The JJ Electronic amp. 6389 
JJ 2A3 and amp 6389 
Czech tubes 6387 
Single plated vs Double plated? 6387 
Mono plate 2A3 tubes 6387 
I suggested once VT52 tube 6386 
The 800R vs. 1800R vs. 5500R 6386 
YO-186 as the output tube. 6383 
Here she is. 6382 
Some talks about the new production tubes 6378 
New 2A3 tubes 6378 
Some thoughts about one-IHT vs. multiple-DHT 6378 
The Sun Audio with 6E5P 6377 
Multistage DHT circuits 6376 
Wrong tube or wrong topology – here is the question. 6375 
Emission Labs 2A3 6375 
Some comment and questions about then 2A3 talks. 6375 
Which Chinese 2A3? 6375 
OK, for a first time I like the San Audio Kit. 6375 
The YO186 Strip Show 6375 
More on the 2A3 comparisons 6374 
It will be interesting…. 6374 
OPT impedence 6374 
More about the Plate Loading 6374 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6369 
2A3 data 6369 
The New 2A3 tubes 6369 
How many stages I need for 110dB sensitivity, smal... 6369 
How many stages and why... and who makes that 45 o... 6368 
Everything about everything. 6368 
Some very good points... and... possibly more logi... 6368 
Options, options, options.... 6368 
I think we agree overall 6368 
An IDHT with more gain? 6367 
You don't ask for much now, eh? 6367 
2A3 tube impressions 6362 
Interesting analogy 6362 
NOS 2A3 tubes versus new tubes 6362 
Hmmm, let me try this one again... 6362 
Sylvania 2A3 identification 6362 
A picture is worth a thousand micromhos? 6362 
I have more interest in the period tubes 6362 
Why NOS tubes? 6361 
The Holly Ignorance 6361 
Tube tasting 6361 
The cathodes’ flatulence? 6361 
Make mine thoriated please 6361 
Any Germans out there? 6361 
6E5P VS 6E6P 6361 
Vibrations? What do you with them? 6361 
Vibration in tubes and sounds 6361 
UX4 vs UX4ruskie 6360 
Ringing the tubes? I do not know how about that. 6360 
Tube sound and vibration 6360 
The thoughts collection about YO186? 6354 
The lights look green for the YO tube 6353 
"Melquiades" with YO-186. Something like... 6353 
My version of RE-604 and PX4 6352 
The YO186 tube sockets. 6352 
B4/B5 British made 6351 
The YO186’s sockets and prices 6351 
DHT 2A3 amplifier rectification 6350 
My attitude toward tube rectification. 6350 
Tu-be or not Tu-be, seems Tu-be the question. 6349 
It looks like DHT DSET is shaping up. 6348 
The Sylvania 2A3 NOS report 6345 
The Citizen Kane syndrome. 6345 
Sylvania 2A3 in a World without Color 6344 
Are NOS and new manufacture comparing oranges to o... 6344 
That all is incorrect in a way…. 6344 
NOS vs new 2A3 tubes 6344 
The identical operation environment? 6344 
Preferred 2A3 operating point 6344 
The sound of the 2A3 however? 6344 
Circuit modification for 2A3 optimization 6343 
How to get max power from 2A3 6343 
2A3 voltages, loads and realized output power 6343 
Optimal operation of 2A3: an experiment 6343 
Tubes, Whole Circuits, Expectations and Sound 6343 
Gain is not power. 6343 
2A3 amplifier modification & Optimization 6343 
Specialized DSET approach 6343 
6C33/2A3 DSET? 6343 
SET usable power and making the most of it 6343 
The 2A3 loading 6343 
DSET solution for EdgarHorn? 6343 
Optimizing the 2A3 6343 
How much to DSET a DSET 6343 
DSET for Titan 6343 
The Best of All Worlds 6343 
Multiamp setup 6342 
Optimizing the (NOS) 2A3... "KM-style"? 6342 
There are many opportunities, it all depends what ... 6342 
Modifying amplifer to optimize NOS 2A3 performance 6342 
Conceptualizing Melquiades DSET is done 6336 
2A3 and 400V supply 6336 
Pudding and the chicken wires 6335 
Another shot at numbers 6335 
How to cook the "uninformed" anode. 6335 
Okay, so this might work.... 6335 
The DHT Milq DSET, the prebuilt draft. 6335 
Looks good, but.... 6334 
2A3 with slightly lover filament voltage? 6334 
Less is more... usually. 6334 
Where to burn gain? how? and where to get beter st... 6333 
Stepping Out 6333 
Said to be good, but 6333 
Gain to lose 6333 
Why nothing is simple with this damn amp! 6333 
Another idea for losing gain 6333 
What's best 6333 
Options, options... 6333 
Actually, it is not so bad. 6333 
Other compromises... 6332 
Cathode vs. fixed with DHT 6331 
Is it glowing yet? 6311 
It is comming.... 6311 
The new MF channel. 6305 
I started to work on the Milq’s DHT Island. 6304 
Innerstage loading vs. OPT loading. 6296 
The intestage loading talk. 6293 
My playback feels like it is broken. 6288 
1 in 50? 6288 
Yes, it was after PP2000 6288 
Die Walküre soldering. 6287 
The post Die Walküre soldering 6286 
Another amp arond YO186 6285 
Gain? 6285 
The Unexpected problem with DHT Milq. 6285 
Simple is good 6284 
Ok, I am moving forward. 6284 
The Milq DSET is up. 6283 
My DH DSET – 2 days later. 6281 
Here is more data to reconcile. 6281 
Hm, that is interesting and unpleasant so far. 6280 
Ok, what do I want? 6280 
Let Go of Some Conceptual "Restrictions"? 6280 
The Milq DH DSET, the further thoughts in progress. 6280 
Crunching Numbers; Shaping Sound 6280 
How about the tweeter? 6279 
Tweeter Efficiency? 6279 
Safe and Sound 6279 
More mystery with tweeter but still on the subject. 6279 
Some clarifications. 6279 
How about that?!!! 6279 
Further considerations: DC-coupling. 6277 
Head Room 6277 
To kill the mandatory 13dB 6276 
DC coupling and killing 13db and driving 6e5p miller and.... 6276 
I do not think that it might be damaging… 6276 
Again with the PS 6276 
AKA J.C. Morrison’s amp but… 6274 
Parallel Universe 6274 
Melquiades HD MF DSET, Draft13. 6272 
Why I let other people build them... 6272 
Ok, it's going to right direction. 6272 
Ok, it looks already very close…. 6271 
The Loftinish-Whitish, well sort of…. 6268 
MF: the pre-final version. 6268 
Loftin-White? 6268 
Did anyone hear the PX4 amplifiers? 6268 
What Could use Improving at This Point? 6268 
The Milq’s MF front-end is done 6264 
Why I Let Other People Build Them, II 6264 
Define really quiet 6263 
Another variable of sound 6263 
Backlash? 6263 
Alternative filament supplies 6263 
I kind of faced a problem with AC 6263 
Going down the DC path 6262 
It is not about the “whole sound” but about “molec... 6262 
Molecular sound 6262 
AC-DC heater supply 6262 
The Tentlabs are $10 worth PS. 6262 
The unexpected resolution of AC vs. DC quandary. 6262 
The devil is less scared than it depicted. 6262 
Hiss or Hum 6262 
AC transformers 6262 
I have seen the Promised Land 6261 
OK, the choke noise is not a problem anymore 6261 
Ok, it is working fine but… 6260 
Divide and Conquer 6260 
The design phase is over. 6259 
The unexpected insanity! 6258 
Loading 6258 
Looking for inspiring ideas for 'universal' loadin... 6258 
A filaments Sherlock Holmes wanted. 6258 
Going the Distance 6258 
Read the f*** manual! 6258 
Agreed. 6258 
I agree 6258 
The filament transformer 6258 
Center-tap and options 6258 
Something like this…. 6258 
Avoiding "Dial-an-Amp" 6258 
The foreplay is going on. 6258 
Split balance 6257 
Further thoughts about my DH filaments 6257 
The Shuguang 2A3 tubes. 6257 
SHuguang 6257 
Going through…. 6256 
The 2.5V noise vs. 4V noise. 6255 
More about Shuguang 2A3C 6255 
Hum vs voltage 6255 
Meow about the tubes… 6255 
To Be a Content Cat 6255 
Completed! 6252 
Tradition 6252 
Absolutely beautiful! 6252 
The 'film' caps in PS 6251 
Science or religion 6251 
Mass Extinction 6251 
Electrolytics, technology and time 6251 
No more questions about PS capacitors. 6251 
Capacitor choices 6251 
Good time. Welcome back. Thanks God. 6250 
The minor day of Quartets. 6250 
Them's the Breaks 6250 
Eventually! 6249 
So Soon? 6249 
DHT MF channel and 6-ch amp: first conclusions 6249 
All Abuzz about Nothing 6248 
The wire for DC-coupling 6248 
The Dirt on DIY Backlash 6248 
DSET vs. the “better tubes”. 6248 
How to test the DH tubes properly? 6247 
Pairing up tubes for SE use 6246 
The DHT live reserve 6245 
Some interestng models 6245 
Eaten alive. 6245 
The tubey déjà vu? 6244 
The new concept of my output transformer. 6240 
The 4V takes a lead. 6236 
Listening the DH and the striped down version of M... 6233 
I kind of slowly learn what I need. 6233 
More HF from a transformer and DHT? 6231 
Since You Don't Need the Gain 6230 
Exiting the design mode? 6230 
Bye-bye the input divider on MF! 6230 
A few steps back and a gaint leap ahead. 6226 
Single-stage vs. DHT amp. 6225 
Setting up the new Playback 6224 
And the winner is… so far 6221 
If you like type 45... 6221 
Type 45... they're not all the same 6221 
Favorite Flavor? 6221 
The 45 times Meow... 6221 
The problem that I see is… 6221 
Running the 45 6221 
The 10Y...and bye bye Newton 6220 
The commentaries about everything. 6220 
Driver tube and biasing 6220 
DHT drivers 6220 
The ideas are worth trying? 6220 
A question about the polishing the things…. 6216 
The Particular Tube, I'm afraid... 6216 
Driving the 45... cathode first 6215 
ST or Globe; old or new... 6215 
Whatever sticks to the wall as an operation point ... 6215 
The attenuating crap in secondary. 6215 
Operating points and cathode current 6215 
The Burgeoning Opportunities! 6215 
Actually it is not so simple. 6215 
Resistors at the front 6214 
A minor alternation of a position 6214 
The era of enlightenment. 6211 
The devil is in the details.... 6211 
Constructing Sound 6211 
A new view on the DHT evaluation. 6210 
The “strange” YO186 6201 
The dead guy’s lessons. 6156 
2S4S and 2A3 6147 
Ho to use the YO186 6140 
YO 186 fundamental flavor 6140 
The YO-YO tube and "fundamentals" channel 6140 
The live without the YO186, again.... 6138 
Not anymore! 6127 
The very good YoYonisation! 6126 
….above and below two very clean channel. 6125 
The DHT and esoteric imaging deformation. 6112 
DHT, YO186, or??? 6112 
I had no idea how ‘different’ it is. 6059 
The Kazitsky Manufacturing and YO104, some history. 6058 
"Absolution and Eternal Refuge." 6055 
Sofia Electric Type 45 Mesh 6045 
The true association of YO186's Sounds. 5807 
All the Best from Burgundy 5807 
Cheesy tubes 5806 
Me and my DHT references… 5697 
Y0-186 in winter. 5600 
Y0-186 sounds like… 5599 
Rethinking the YO186 tube. 5568 
In My Dreams 5568 
Grunt from type 45? A ridicules comment. 5568 
Blame? 5567 
When good is not good enough. 5567 
45s, Drivers, and 45s 5567 
Hm, that was so simple after all! 5566 
How the YO186 was used. 5150 
What is old is new? 5149 
YO186 vs. type 45. 5148 
The YO186 is gone.... :-( 4697 
That sucks. 4697 
YO186 4695 
Hm, what the hell is going on? 4695 
I do not think that anybody but me would like YO186 4695 
A hallucination? 4692 
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