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Site News: 20 Jul 2026

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Romy the Cat's personal site dedicated to advanced audio and evolved music reproduction techniques
Thread WITH the new posts.

Legends: "Week" - last week posts, "Bold" - entered last 48 hours.
Single-stage Melquiades vs. DHT amps 6461 
One-stage Milq++ and the DHT's alleged tone 6460 
DHT Milq? 6460 
The DHT journey. 6460 
DHT tone 6460 
Well, why not? 6459 
Holding the Fort 6459 
My DHT experiment: Preface 6459 
Input tube and DC heaters 6458 
Reimyo Pat 777 6458 
My DHT experiment: Observations 6454 
DHT or 300B? 6454 
300B 6454 
Talking, perception and the grounds for objectively 6454 
The Wine Via the Wine Glass 6453 
Hence the confusion 6453 
My DHT experiment: some conclusions. 6453 
Reality Reconstruction is not a functionality. 6453 
My experience with DHTs 6453 
Pigmented coloration? 6453 
Dht-dht 6453 
Dynamic viscosity? 6453 
The Pallette preamp... 6453 
If one DHT is good, two must be better? 6453 
"soul" of tubes 6453 
There is a difference... 6453 
Vibration injection? 6453 
Homework # 4334 6453 
The 01A-71A-10Y-45 chain 6453 
Old valves have more soul! 6452 
Was it soul or soil? 6452 
It was just a heading 6452 
Adjustable color: TIMBRE LOCK? 6452 
Neutral or neutral/uncoloured? 6452 
..are lacking in power, dynamics and bandwidth. 6452 
Timbre-Lock. Not quite ready for prime time. 6452 
Injection of analog dither? 6452 
Subliminal signal 6452 
The idea of analog randomanization. 6452 
Okay, what Avicena Power Generator 6452 
I hope you will be hearing about it. 6451 
Avicenna = Arabian 6451 
Persian, not Arab 6451 
The “second solution” - a major disappointment 6451 
More words to describe "sux" please 6451 
Revolution 6451 
The non-melodramatic DHT? 6451 
One-stage DHTs 6450 
One other thing 6450 
One stage 6450 
Brewing, thinking and heating 6450 
Physical characteristics of electronic devices 6450 
I see the things differently. 6450 
Don't waste time being "creative" 6450 
The audiophile attitude 6450 
The where and why of design choices 6450 
Blah blah blah 6450 
Laconic Clarity vs. Comfort vs. Nostalgia 6450 
Do I need to be hissing? 6450 
...associated with lack of neutrality and colorati... 6450 
John Broskie's Partial feedback amplifier 6450 
Randomness vs. freedom and the Homework # 4334 6449 
What is randomness? 6449 
Those least three possibilities… 6449 
Randomness and Music's Prerogative 6449 
It works, … sort of. The revolution is canceled. 6449 
Thorsten Loesch’s article about DHT SETs 6447 
A Beautiful Mind 6446 
Some summary and conclusions from the first phase. 6444 
Second phase: revising requirement for my DHT objectives. 6429 
Tubes for your DHT amp 6429 
Abandoning Milq? 6429 
Will see how it goes.... 6429 
Single-stage Milq vs. Sun Audio VT-2A3 6427 
Topology and 2A3? 6427 
6SN7-2A3 amps? 6427 
Type Casting 6427 
Sun Audio SV-2A3 6427 
6sn7-2a3 6427 
Topology vs parts 6427 
For a DHT amp, you are listening to the power supply 6427 
The vintage tubes syndrome. 6427 
Parts Frenzy 6427 
Too many new sounds 6427 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6426 
New tubes 6425 
Milq bias vs. batery bias 6425 
The batteries are a tricky thing. 6425 
Swimming the ocean at night? 6425 
New 2A3 6425 
To kill of do not kill the capacitor. 6424 
The JJ Electronic amp. 6423 
JJ 2A3 and amp 6423 
Czech tubes 6421 
Single plated vs Double plated? 6421 
Mono plate 2A3 tubes 6421 
I suggested once VT52 tube 6420 
The 800R vs. 1800R vs. 5500R 6420 
YO-186 as the output tube. 6417 
Here she is. 6416 
Some talks about the new production tubes 6412 
New 2A3 tubes 6412 
Some thoughts about one-IHT vs. multiple-DHT 6412 
The Sun Audio with 6E5P 6411 
Multistage DHT circuits 6410 
Wrong tube or wrong topology – here is the question. 6409 
Emission Labs 2A3 6409 
Some comment and questions about then 2A3 talks. 6409 
Which Chinese 2A3? 6409 
OK, for a first time I like the San Audio Kit. 6409 
The YO186 Strip Show 6409 
More on the 2A3 comparisons 6408 
It will be interesting…. 6408 
OPT impedence 6408 
More about the Plate Loading 6408 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6403 
2A3 data 6403 
The New 2A3 tubes 6403 
How many stages I need for 110dB sensitivity, smal... 6403 
How many stages and why... and who makes that 45 o... 6402 
Everything about everything. 6402 
Some very good points... and... possibly more logi... 6402 
Options, options, options.... 6402 
I think we agree overall 6402 
An IDHT with more gain? 6401 
You don't ask for much now, eh? 6401 
2A3 tube impressions 6396 
Interesting analogy 6396 
NOS 2A3 tubes versus new tubes 6396 
Hmmm, let me try this one again... 6396 
Sylvania 2A3 identification 6396 
A picture is worth a thousand micromhos? 6396 
I have more interest in the period tubes 6396 
Why NOS tubes? 6395 
The Holly Ignorance 6395 
Tube tasting 6395 
The cathodes’ flatulence? 6395 
Make mine thoriated please 6395 
Any Germans out there? 6395 
6E5P VS 6E6P 6395 
Vibrations? What do you with them? 6395 
Vibration in tubes and sounds 6395 
UX4 vs UX4ruskie 6394 
Ringing the tubes? I do not know how about that. 6394 
Tube sound and vibration 6394 
The thoughts collection about YO186? 6388 
The lights look green for the YO tube 6387 
"Melquiades" with YO-186. Something like... 6387 
My version of RE-604 and PX4 6386 
The YO186 tube sockets. 6386 
B4/B5 British made 6385 
The YO186’s sockets and prices 6385 
DHT 2A3 amplifier rectification 6384 
My attitude toward tube rectification. 6384 
Tu-be or not Tu-be, seems Tu-be the question. 6383 
It looks like DHT DSET is shaping up. 6382 
The Sylvania 2A3 NOS report 6379 
The Citizen Kane syndrome. 6379 
Sylvania 2A3 in a World without Color 6378 
Are NOS and new manufacture comparing oranges to o... 6378 
That all is incorrect in a way…. 6378 
NOS vs new 2A3 tubes 6378 
The identical operation environment? 6378 
Preferred 2A3 operating point 6378 
The sound of the 2A3 however? 6378 
Circuit modification for 2A3 optimization 6377 
How to get max power from 2A3 6377 
2A3 voltages, loads and realized output power 6377 
Optimal operation of 2A3: an experiment 6377 
Tubes, Whole Circuits, Expectations and Sound 6377 
Gain is not power. 6377 
2A3 amplifier modification & Optimization 6377 
Specialized DSET approach 6377 
6C33/2A3 DSET? 6377 
SET usable power and making the most of it 6377 
The 2A3 loading 6377 
DSET solution for EdgarHorn? 6377 
Optimizing the 2A3 6377 
How much to DSET a DSET 6377 
DSET for Titan 6377 
The Best of All Worlds 6377 
Multiamp setup 6376 
Optimizing the (NOS) 2A3... "KM-style"? 6376 
There are many opportunities, it all depends what ... 6376 
Modifying amplifer to optimize NOS 2A3 performance 6376 
Conceptualizing Melquiades DSET is done 6370 
2A3 and 400V supply 6370 
Pudding and the chicken wires 6369 
Another shot at numbers 6369 
How to cook the "uninformed" anode. 6369 
Okay, so this might work.... 6369 
The DHT Milq DSET, the prebuilt draft. 6369 
Looks good, but.... 6368 
2A3 with slightly lover filament voltage? 6368 
Less is more... usually. 6368 
Where to burn gain? how? and where to get beter st... 6367 
Stepping Out 6367 
Said to be good, but 6367 
Gain to lose 6367 
Why nothing is simple with this damn amp! 6367 
Another idea for losing gain 6367 
What's best 6367 
Options, options... 6367 
Actually, it is not so bad. 6367 
Other compromises... 6366 
Cathode vs. fixed with DHT 6365 
Is it glowing yet? 6345 
It is comming.... 6345 
The new MF channel. 6339 
I started to work on the Milq’s DHT Island. 6338 
Innerstage loading vs. OPT loading. 6330 
The intestage loading talk. 6327 
My playback feels like it is broken. 6322 
1 in 50? 6322 
Yes, it was after PP2000 6322 
Die Walküre soldering. 6321 
The post Die Walküre soldering 6320 
Another amp arond YO186 6319 
Gain? 6319 
The Unexpected problem with DHT Milq. 6319 
Simple is good 6318 
Ok, I am moving forward. 6318 
The Milq DSET is up. 6317 
My DH DSET – 2 days later. 6315 
Here is more data to reconcile. 6315 
Hm, that is interesting and unpleasant so far. 6314 
Ok, what do I want? 6314 
Let Go of Some Conceptual "Restrictions"? 6314 
The Milq DH DSET, the further thoughts in progress. 6314 
Crunching Numbers; Shaping Sound 6314 
How about the tweeter? 6313 
Tweeter Efficiency? 6313 
Safe and Sound 6313 
More mystery with tweeter but still on the subject. 6313 
Some clarifications. 6313 
How about that?!!! 6313 
Further considerations: DC-coupling. 6311 
Head Room 6311 
To kill the mandatory 13dB 6310 
DC coupling and killing 13db and driving 6e5p miller and.... 6310 
I do not think that it might be damaging… 6310 
Again with the PS 6310 
AKA J.C. Morrison’s amp but… 6308 
Parallel Universe 6308 
Melquiades HD MF DSET, Draft13. 6306 
Why I let other people build them... 6306 
Ok, it's going to right direction. 6306 
Ok, it looks already very close…. 6305 
The Loftinish-Whitish, well sort of…. 6302 
MF: the pre-final version. 6302 
Loftin-White? 6302 
Did anyone hear the PX4 amplifiers? 6302 
What Could use Improving at This Point? 6302 
The Milq’s MF front-end is done 6298 
Why I Let Other People Build Them, II 6298 
Define really quiet 6297 
Another variable of sound 6297 
Backlash? 6297 
Alternative filament supplies 6297 
I kind of faced a problem with AC 6297 
Going down the DC path 6296 
It is not about the “whole sound” but about “molec... 6296 
Molecular sound 6296 
AC-DC heater supply 6296 
The Tentlabs are $10 worth PS. 6296 
The unexpected resolution of AC vs. DC quandary. 6296 
The devil is less scared than it depicted. 6296 
Hiss or Hum 6296 
AC transformers 6296 
I have seen the Promised Land 6295 
OK, the choke noise is not a problem anymore 6295 
Ok, it is working fine but… 6294 
Divide and Conquer 6294 
The design phase is over. 6293 
The unexpected insanity! 6292 
Loading 6292 
Looking for inspiring ideas for 'universal' loadin... 6292 
A filaments Sherlock Holmes wanted. 6292 
Going the Distance 6292 
Read the f*** manual! 6292 
Agreed. 6292 
I agree 6292 
The filament transformer 6292 
Center-tap and options 6292 
Something like this…. 6292 
Avoiding "Dial-an-Amp" 6292 
The foreplay is going on. 6292 
Split balance 6291 
Further thoughts about my DH filaments 6291 
The Shuguang 2A3 tubes. 6291 
SHuguang 6291 
Going through…. 6290 
The 2.5V noise vs. 4V noise. 6289 
More about Shuguang 2A3C 6289 
Hum vs voltage 6289 
Meow about the tubes… 6289 
To Be a Content Cat 6289 
Completed! 6286 
Tradition 6286 
Absolutely beautiful! 6286 
The 'film' caps in PS 6285 
Science or religion 6285 
Mass Extinction 6285 
Electrolytics, technology and time 6285 
No more questions about PS capacitors. 6285 
Capacitor choices 6285 
Good time. Welcome back. Thanks God. 6284 
The minor day of Quartets. 6284 
Them's the Breaks 6284 
Eventually! 6283 
So Soon? 6283 
DHT MF channel and 6-ch amp: first conclusions 6283 
All Abuzz about Nothing 6282 
The wire for DC-coupling 6282 
The Dirt on DIY Backlash 6282 
DSET vs. the “better tubes”. 6282 
How to test the DH tubes properly? 6281 
Pairing up tubes for SE use 6280 
The DHT live reserve 6279 
Some interestng models 6279 
Eaten alive. 6279 
The tubey déjà vu? 6278 
The new concept of my output transformer. 6274 
The 4V takes a lead. 6270 
Listening the DH and the striped down version of M... 6267 
I kind of slowly learn what I need. 6267 
More HF from a transformer and DHT? 6265 
Since You Don't Need the Gain 6264 
Exiting the design mode? 6264 
Bye-bye the input divider on MF! 6264 
A few steps back and a gaint leap ahead. 6260 
Single-stage vs. DHT amp. 6259 
Setting up the new Playback 6258 
And the winner is… so far 6255 
If you like type 45... 6255 
Type 45... they're not all the same 6255 
Favorite Flavor? 6255 
The 45 times Meow... 6255 
The problem that I see is… 6255 
Running the 45 6255 
The 10Y...and bye bye Newton 6254 
The commentaries about everything. 6254 
Driver tube and biasing 6254 
DHT drivers 6254 
The ideas are worth trying? 6254 
A question about the polishing the things…. 6250 
The Particular Tube, I'm afraid... 6250 
Driving the 45... cathode first 6249 
ST or Globe; old or new... 6249 
Whatever sticks to the wall as an operation point ... 6249 
The attenuating crap in secondary. 6249 
Operating points and cathode current 6249 
The Burgeoning Opportunities! 6249 
Actually it is not so simple. 6249 
Resistors at the front 6248 
A minor alternation of a position 6248 
The era of enlightenment. 6245 
The devil is in the details.... 6245 
Constructing Sound 6245 
A new view on the DHT evaluation. 6244 
The “strange” YO186 6235 
The dead guy’s lessons. 6190 
2S4S and 2A3 6181 
Ho to use the YO186 6174 
YO 186 fundamental flavor 6174 
The YO-YO tube and "fundamentals" channel 6174 
The live without the YO186, again.... 6172 
Not anymore! 6161 
The very good YoYonisation! 6160 
….above and below two very clean channel. 6159 
The DHT and esoteric imaging deformation. 6146 
DHT, YO186, or??? 6146 
I had no idea how ‘different’ it is. 6093 
The Kazitsky Manufacturing and YO104, some history. 6092 
"Absolution and Eternal Refuge." 6089 
Sofia Electric Type 45 Mesh 6079 
The true association of YO186's Sounds. 5841 
All the Best from Burgundy 5841 
Cheesy tubes 5840 
Me and my DHT references… 5731 
Y0-186 in winter. 5634 
Y0-186 sounds like… 5633 
Rethinking the YO186 tube. 5602 
In My Dreams 5602 
Grunt from type 45? A ridicules comment. 5602 
Blame? 5601 
When good is not good enough. 5601 
45s, Drivers, and 45s 5601 
Hm, that was so simple after all! 5600 
How the YO186 was used. 5184 
What is old is new? 5183 
YO186 vs. type 45. 5182 
The YO186 is gone.... :-( 4731 
That sucks. 4731 
YO186 4729 
Hm, what the hell is going on? 4729 
I do not think that anybody but me would like YO186 4729 
A hallucination? 4726 
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