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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
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 6389 
One-stage Milq++ and the DHT's alleged tone 6388 
DHT Milq? 6388 
The DHT journey. 6388 
DHT tone 6388 
Well, why not? 6387 
Holding the Fort 6387 
My DHT experiment: Preface 6387 
Input tube and DC heaters 6386 
Reimyo Pat 777 6386 
My DHT experiment: Observations 6382 
DHT or 300B? 6382 
300B 6382 
Talking, perception and the grounds for objectively 6382 
The Wine Via the Wine Glass 6381 
Hence the confusion 6381 
My DHT experiment: some conclusions. 6381 
Reality Reconstruction is not a functionality. 6381 
My experience with DHTs 6381 
Pigmented coloration? 6381 
Dht-dht 6381 
Dynamic viscosity? 6381 
The Pallette preamp... 6381 
If one DHT is good, two must be better? 6381 
"soul" of tubes 6381 
There is a difference... 6381 
Vibration injection? 6381 
Homework # 4334 6381 
The 01A-71A-10Y-45 chain 6381 
Old valves have more soul! 6380 
Was it soul or soil? 6380 
It was just a heading 6380 
Adjustable color: TIMBRE LOCK? 6380 
Neutral or neutral/uncoloured? 6380 
..are lacking in power, dynamics and bandwidth. 6380 
Timbre-Lock. Not quite ready for prime time. 6380 
Injection of analog dither? 6380 
Subliminal signal 6380 
The idea of analog randomanization. 6380 
Okay, what Avicena Power Generator 6380 
I hope you will be hearing about it. 6379 
Avicenna = Arabian 6379 
Persian, not Arab 6379 
The “second solution” - a major disappointment 6379 
More words to describe "sux" please 6379 
Revolution 6379 
The non-melodramatic DHT? 6379 
One-stage DHTs 6378 
One other thing 6378 
One stage 6378 
Brewing, thinking and heating 6378 
Physical characteristics of electronic devices 6378 
I see the things differently. 6378 
Don't waste time being "creative" 6378 
The audiophile attitude 6378 
The where and why of design choices 6378 
Blah blah blah 6378 
Laconic Clarity vs. Comfort vs. Nostalgia 6378 
Do I need to be hissing? 6378 
...associated with lack of neutrality and colorati... 6378 
John Broskie's Partial feedback amplifier 6378 
Randomness vs. freedom and the Homework # 4334 6377 
What is randomness? 6377 
Those least three possibilities… 6377 
Randomness and Music's Prerogative 6377 
It works, … sort of. The revolution is canceled. 6377 
Thorsten Loesch’s article about DHT SETs 6375 
A Beautiful Mind 6374 
Some summary and conclusions from the first phase. 6372 
Second phase: revising requirement for my DHT objectives. 6357 
Tubes for your DHT amp 6357 
Abandoning Milq? 6357 
Will see how it goes.... 6357 
Single-stage Milq vs. Sun Audio VT-2A3 6355 
Topology and 2A3? 6355 
6SN7-2A3 amps? 6355 
Type Casting 6355 
Sun Audio SV-2A3 6355 
6sn7-2a3 6355 
Topology vs parts 6355 
For a DHT amp, you are listening to the power supply 6355 
The vintage tubes syndrome. 6355 
Parts Frenzy 6355 
Too many new sounds 6355 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6354 
New tubes 6353 
Milq bias vs. batery bias 6353 
The batteries are a tricky thing. 6353 
Swimming the ocean at night? 6353 
New 2A3 6353 
To kill of do not kill the capacitor. 6352 
The JJ Electronic amp. 6351 
JJ 2A3 and amp 6351 
Czech tubes 6349 
Single plated vs Double plated? 6349 
Mono plate 2A3 tubes 6349 
I suggested once VT52 tube 6348 
The 800R vs. 1800R vs. 5500R 6348 
YO-186 as the output tube. 6345 
Here she is. 6344 
Some talks about the new production tubes 6340 
New 2A3 tubes 6340 
Some thoughts about one-IHT vs. multiple-DHT 6340 
The Sun Audio with 6E5P 6339 
Multistage DHT circuits 6338 
Wrong tube or wrong topology – here is the question. 6337 
Emission Labs 2A3 6337 
Some comment and questions about then 2A3 talks. 6337 
Which Chinese 2A3? 6337 
OK, for a first time I like the San Audio Kit. 6337 
The YO186 Strip Show 6337 
More on the 2A3 comparisons 6336 
It will be interesting…. 6336 
OPT impedence 6336 
More about the Plate Loading 6336 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6331 
2A3 data 6331 
The New 2A3 tubes 6331 
How many stages I need for 110dB sensitivity, smal... 6331 
How many stages and why... and who makes that 45 o... 6330 
Everything about everything. 6330 
Some very good points... and... possibly more logi... 6330 
Options, options, options.... 6330 
I think we agree overall 6330 
An IDHT with more gain? 6329 
You don't ask for much now, eh? 6329 
2A3 tube impressions 6324 
Interesting analogy 6324 
NOS 2A3 tubes versus new tubes 6324 
Hmmm, let me try this one again... 6324 
Sylvania 2A3 identification 6324 
A picture is worth a thousand micromhos? 6324 
I have more interest in the period tubes 6324 
Why NOS tubes? 6323 
The Holly Ignorance 6323 
Tube tasting 6323 
The cathodes’ flatulence? 6323 
Make mine thoriated please 6323 
Any Germans out there? 6323 
6E5P VS 6E6P 6323 
Vibrations? What do you with them? 6323 
Vibration in tubes and sounds 6323 
UX4 vs UX4ruskie 6322 
Ringing the tubes? I do not know how about that. 6322 
Tube sound and vibration 6322 
The thoughts collection about YO186? 6316 
The lights look green for the YO tube 6315 
"Melquiades" with YO-186. Something like... 6315 
My version of RE-604 and PX4 6314 
The YO186 tube sockets. 6314 
B4/B5 British made 6313 
The YO186’s sockets and prices 6313 
DHT 2A3 amplifier rectification 6312 
My attitude toward tube rectification. 6312 
Tu-be or not Tu-be, seems Tu-be the question. 6311 
It looks like DHT DSET is shaping up. 6310 
The Sylvania 2A3 NOS report 6307 
The Citizen Kane syndrome. 6307 
Sylvania 2A3 in a World without Color 6306 
Are NOS and new manufacture comparing oranges to o... 6306 
That all is incorrect in a way…. 6306 
NOS vs new 2A3 tubes 6306 
The identical operation environment? 6306 
Preferred 2A3 operating point 6306 
The sound of the 2A3 however? 6306 
Circuit modification for 2A3 optimization 6305 
How to get max power from 2A3 6305 
2A3 voltages, loads and realized output power 6305 
Optimal operation of 2A3: an experiment 6305 
Tubes, Whole Circuits, Expectations and Sound 6305 
Gain is not power. 6305 
2A3 amplifier modification & Optimization 6305 
Specialized DSET approach 6305 
6C33/2A3 DSET? 6305 
SET usable power and making the most of it 6305 
The 2A3 loading 6305 
DSET solution for EdgarHorn? 6305 
Optimizing the 2A3 6305 
How much to DSET a DSET 6305 
DSET for Titan 6305 
The Best of All Worlds 6305 
Multiamp setup 6304 
Optimizing the (NOS) 2A3... "KM-style"? 6304 
There are many opportunities, it all depends what ... 6304 
Modifying amplifer to optimize NOS 2A3 performance 6304 
Conceptualizing Melquiades DSET is done 6298 
2A3 and 400V supply 6298 
Pudding and the chicken wires 6297 
Another shot at numbers 6297 
How to cook the "uninformed" anode. 6297 
Okay, so this might work.... 6297 
The DHT Milq DSET, the prebuilt draft. 6297 
Looks good, but.... 6296 
2A3 with slightly lover filament voltage? 6296 
Less is more... usually. 6296 
Where to burn gain? how? and where to get beter st... 6295 
Stepping Out 6295 
Said to be good, but 6295 
Gain to lose 6295 
Why nothing is simple with this damn amp! 6295 
Another idea for losing gain 6295 
What's best 6295 
Options, options... 6295 
Actually, it is not so bad. 6295 
Other compromises... 6294 
Cathode vs. fixed with DHT 6293 
Is it glowing yet? 6273 
It is comming.... 6273 
The new MF channel. 6267 
I started to work on the Milq’s DHT Island. 6266 
Innerstage loading vs. OPT loading. 6258 
The intestage loading talk. 6255 
My playback feels like it is broken. 6250 
1 in 50? 6250 
Yes, it was after PP2000 6250 
Die Walküre soldering. 6249 
The post Die Walküre soldering 6248 
Another amp arond YO186 6247 
Gain? 6247 
The Unexpected problem with DHT Milq. 6247 
Simple is good 6246 
Ok, I am moving forward. 6246 
The Milq DSET is up. 6245 
My DH DSET – 2 days later. 6243 
Here is more data to reconcile. 6243 
Hm, that is interesting and unpleasant so far. 6242 
Ok, what do I want? 6242 
Let Go of Some Conceptual "Restrictions"? 6242 
The Milq DH DSET, the further thoughts in progress. 6242 
Crunching Numbers; Shaping Sound 6242 
How about the tweeter? 6241 
Tweeter Efficiency? 6241 
Safe and Sound 6241 
More mystery with tweeter but still on the subject. 6241 
Some clarifications. 6241 
How about that?!!! 6241 
Further considerations: DC-coupling. 6239 
Head Room 6239 
To kill the mandatory 13dB 6238 
DC coupling and killing 13db and driving 6e5p miller and.... 6238 
I do not think that it might be damaging… 6238 
Again with the PS 6238 
AKA J.C. Morrison’s amp but… 6236 
Parallel Universe 6236 
Melquiades HD MF DSET, Draft13. 6234 
Why I let other people build them... 6234 
Ok, it's going to right direction. 6234 
Ok, it looks already very close…. 6233 
The Loftinish-Whitish, well sort of…. 6230 
MF: the pre-final version. 6230 
Loftin-White? 6230 
Did anyone hear the PX4 amplifiers? 6230 
What Could use Improving at This Point? 6230 
The Milq’s MF front-end is done 6226 
Why I Let Other People Build Them, II 6226 
Define really quiet 6225 
Another variable of sound 6225 
Backlash? 6225 
Alternative filament supplies 6225 
I kind of faced a problem with AC 6225 
Going down the DC path 6224 
It is not about the “whole sound” but about “molec... 6224 
Molecular sound 6224 
AC-DC heater supply 6224 
The Tentlabs are $10 worth PS. 6224 
The unexpected resolution of AC vs. DC quandary. 6224 
The devil is less scared than it depicted. 6224 
Hiss or Hum 6224 
AC transformers 6224 
I have seen the Promised Land 6223 
OK, the choke noise is not a problem anymore 6223 
Ok, it is working fine but… 6222 
Divide and Conquer 6222 
The design phase is over. 6221 
The unexpected insanity! 6220 
Loading 6220 
Looking for inspiring ideas for 'universal' loadin... 6220 
A filaments Sherlock Holmes wanted. 6220 
Going the Distance 6220 
Read the f*** manual! 6220 
Agreed. 6220 
I agree 6220 
The filament transformer 6220 
Center-tap and options 6220 
Something like this…. 6220 
Avoiding "Dial-an-Amp" 6220 
The foreplay is going on. 6220 
Split balance 6219 
Further thoughts about my DH filaments 6219 
The Shuguang 2A3 tubes. 6219 
SHuguang 6219 
Going through…. 6218 
The 2.5V noise vs. 4V noise. 6217 
More about Shuguang 2A3C 6217 
Hum vs voltage 6217 
Meow about the tubes… 6217 
To Be a Content Cat 6217 
Completed! 6214 
Tradition 6214 
Absolutely beautiful! 6214 
The 'film' caps in PS 6213 
Science or religion 6213 
Mass Extinction 6213 
Electrolytics, technology and time 6213 
No more questions about PS capacitors. 6213 
Capacitor choices 6213 
Good time. Welcome back. Thanks God. 6212 
The minor day of Quartets. 6212 
Them's the Breaks 6212 
Eventually! 6211 
So Soon? 6211 
DHT MF channel and 6-ch amp: first conclusions 6211 
All Abuzz about Nothing 6210 
The wire for DC-coupling 6210 
The Dirt on DIY Backlash 6210 
DSET vs. the “better tubes”. 6210 
How to test the DH tubes properly? 6209 
Pairing up tubes for SE use 6208 
The DHT live reserve 6207 
Some interestng models 6207 
Eaten alive. 6207 
The tubey déjà vu? 6206 
The new concept of my output transformer. 6202 
The 4V takes a lead. 6198 
Listening the DH and the striped down version of M... 6195 
I kind of slowly learn what I need. 6195 
More HF from a transformer and DHT? 6193 
Since You Don't Need the Gain 6192 
Exiting the design mode? 6192 
Bye-bye the input divider on MF! 6192 
A few steps back and a gaint leap ahead. 6188 
Single-stage vs. DHT amp. 6187 
Setting up the new Playback 6186 
And the winner is… so far 6183 
If you like type 45... 6183 
Type 45... they're not all the same 6183 
Favorite Flavor? 6183 
The 45 times Meow... 6183 
The problem that I see is… 6183 
Running the 45 6183 
The 10Y...and bye bye Newton 6182 
The commentaries about everything. 6182 
Driver tube and biasing 6182 
DHT drivers 6182 
The ideas are worth trying? 6182 
A question about the polishing the things…. 6178 
The Particular Tube, I'm afraid... 6178 
Driving the 45... cathode first 6177 
ST or Globe; old or new... 6177 
Whatever sticks to the wall as an operation point ... 6177 
The attenuating crap in secondary. 6177 
Operating points and cathode current 6177 
The Burgeoning Opportunities! 6177 
Actually it is not so simple. 6177 
Resistors at the front 6176 
A minor alternation of a position 6176 
The era of enlightenment. 6173 
The devil is in the details.... 6173 
Constructing Sound 6173 
A new view on the DHT evaluation. 6172 
The “strange” YO186 6163 
The dead guy’s lessons. 6118 
2S4S and 2A3 6109 
Ho to use the YO186 6102 
YO 186 fundamental flavor 6102 
The YO-YO tube and "fundamentals" channel 6102 
The live without the YO186, again.... 6100 
Not anymore! 6089 
The very good YoYonisation! 6088 
….above and below two very clean channel. 6087 
The DHT and esoteric imaging deformation. 6074 
DHT, YO186, or??? 6074 
I had no idea how ‘different’ it is. 6021 
The Kazitsky Manufacturing and YO104, some history. 6020 
"Absolution and Eternal Refuge." 6017 
Sofia Electric Type 45 Mesh 6007 
The true association of YO186's Sounds. 5769 
All the Best from Burgundy 5769 
Cheesy tubes 5768 
Me and my DHT references… 5659 
Y0-186 in winter. 5562 
Y0-186 sounds like… 5561 
Rethinking the YO186 tube. 5530 
In My Dreams 5530 
Grunt from type 45? A ridicules comment. 5530 
Blame? 5529 
When good is not good enough. 5529 
45s, Drivers, and 45s 5529 
Hm, that was so simple after all! 5528 
How the YO186 was used. 5112 
What is old is new? 5111 
YO186 vs. type 45. 5110 
The YO186 is gone.... :-( 4659 
That sucks. 4659 
YO186 4657 
Hm, what the hell is going on? 4657 
I do not think that anybody but me would like YO186 4657 
A hallucination? 4654 
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