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Site News: 17 May 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 6413 
One-stage Milq++ and the DHT's alleged tone 6412 
DHT Milq? 6412 
The DHT journey. 6412 
DHT tone 6412 
Well, why not? 6411 
Holding the Fort 6411 
My DHT experiment: Preface 6411 
Input tube and DC heaters 6410 
Reimyo Pat 777 6410 
My DHT experiment: Observations 6406 
DHT or 300B? 6406 
300B 6406 
Talking, perception and the grounds for objectively 6406 
The Wine Via the Wine Glass 6405 
Hence the confusion 6405 
My DHT experiment: some conclusions. 6405 
Reality Reconstruction is not a functionality. 6405 
My experience with DHTs 6405 
Pigmented coloration? 6405 
Dht-dht 6405 
Dynamic viscosity? 6405 
The Pallette preamp... 6405 
If one DHT is good, two must be better? 6405 
"soul" of tubes 6405 
There is a difference... 6405 
Vibration injection? 6405 
Homework # 4334 6405 
The 01A-71A-10Y-45 chain 6405 
Old valves have more soul! 6404 
Was it soul or soil? 6404 
It was just a heading 6404 
Adjustable color: TIMBRE LOCK? 6404 
Neutral or neutral/uncoloured? 6404 
..are lacking in power, dynamics and bandwidth. 6404 
Timbre-Lock. Not quite ready for prime time. 6404 
Injection of analog dither? 6404 
Subliminal signal 6404 
The idea of analog randomanization. 6404 
Okay, what Avicena Power Generator 6404 
I hope you will be hearing about it. 6403 
Avicenna = Arabian 6403 
Persian, not Arab 6403 
The “second solution” - a major disappointment 6403 
More words to describe "sux" please 6403 
Revolution 6403 
The non-melodramatic DHT? 6403 
One-stage DHTs 6402 
One other thing 6402 
One stage 6402 
Brewing, thinking and heating 6402 
Physical characteristics of electronic devices 6402 
I see the things differently. 6402 
Don't waste time being "creative" 6402 
The audiophile attitude 6402 
The where and why of design choices 6402 
Blah blah blah 6402 
Laconic Clarity vs. Comfort vs. Nostalgia 6402 
Do I need to be hissing? 6402 
...associated with lack of neutrality and colorati... 6402 
John Broskie's Partial feedback amplifier 6402 
Randomness vs. freedom and the Homework # 4334 6401 
What is randomness? 6401 
Those least three possibilities… 6401 
Randomness and Music's Prerogative 6401 
It works, … sort of. The revolution is canceled. 6401 
Thorsten Loesch’s article about DHT SETs 6399 
A Beautiful Mind 6398 
Some summary and conclusions from the first phase. 6396 
Second phase: revising requirement for my DHT objectives. 6381 
Tubes for your DHT amp 6381 
Abandoning Milq? 6381 
Will see how it goes.... 6381 
Single-stage Milq vs. Sun Audio VT-2A3 6379 
Topology and 2A3? 6379 
6SN7-2A3 amps? 6379 
Type Casting 6379 
Sun Audio SV-2A3 6379 
6sn7-2a3 6379 
Topology vs parts 6379 
For a DHT amp, you are listening to the power supply 6379 
The vintage tubes syndrome. 6379 
Parts Frenzy 6379 
Too many new sounds 6379 
Milq-Sun-Audio amp, ordinary Sound, 2A3 tubes 6378 
New tubes 6377 
Milq bias vs. batery bias 6377 
The batteries are a tricky thing. 6377 
Swimming the ocean at night? 6377 
New 2A3 6377 
To kill of do not kill the capacitor. 6376 
The JJ Electronic amp. 6375 
JJ 2A3 and amp 6375 
Czech tubes 6373 
Single plated vs Double plated? 6373 
Mono plate 2A3 tubes 6373 
I suggested once VT52 tube 6372 
The 800R vs. 1800R vs. 5500R 6372 
YO-186 as the output tube. 6369 
Here she is. 6368 
Some talks about the new production tubes 6364 
New 2A3 tubes 6364 
Some thoughts about one-IHT vs. multiple-DHT 6364 
The Sun Audio with 6E5P 6363 
Multistage DHT circuits 6362 
Wrong tube or wrong topology – here is the question. 6361 
Emission Labs 2A3 6361 
Some comment and questions about then 2A3 talks. 6361 
Which Chinese 2A3? 6361 
OK, for a first time I like the San Audio Kit. 6361 
The YO186 Strip Show 6361 
More on the 2A3 comparisons 6360 
It will be interesting…. 6360 
OPT impedence 6360 
More about the Plate Loading 6360 
Some feedback on designing with the 45 and 2A3 DHTs... might prove interesting. 6355 
2A3 data 6355 
The New 2A3 tubes 6355 
How many stages I need for 110dB sensitivity, smal... 6355 
How many stages and why... and who makes that 45 o... 6354 
Everything about everything. 6354 
Some very good points... and... possibly more logi... 6354 
Options, options, options.... 6354 
I think we agree overall 6354 
An IDHT with more gain? 6353 
You don't ask for much now, eh? 6353 
2A3 tube impressions 6348 
Interesting analogy 6348 
NOS 2A3 tubes versus new tubes 6348 
Hmmm, let me try this one again... 6348 
Sylvania 2A3 identification 6348 
A picture is worth a thousand micromhos? 6348 
I have more interest in the period tubes 6348 
Why NOS tubes? 6347 
The Holly Ignorance 6347 
Tube tasting 6347 
The cathodes’ flatulence? 6347 
Make mine thoriated please 6347 
Any Germans out there? 6347 
6E5P VS 6E6P 6347 
Vibrations? What do you with them? 6347 
Vibration in tubes and sounds 6347 
UX4 vs UX4ruskie 6346 
Ringing the tubes? I do not know how about that. 6346 
Tube sound and vibration 6346 
The thoughts collection about YO186? 6340 
The lights look green for the YO tube 6339 
"Melquiades" with YO-186. Something like... 6339 
My version of RE-604 and PX4 6338 
The YO186 tube sockets. 6338 
B4/B5 British made 6337 
The YO186’s sockets and prices 6337 
DHT 2A3 amplifier rectification 6336 
My attitude toward tube rectification. 6336 
Tu-be or not Tu-be, seems Tu-be the question. 6335 
It looks like DHT DSET is shaping up. 6334 
The Sylvania 2A3 NOS report 6331 
The Citizen Kane syndrome. 6331 
Sylvania 2A3 in a World without Color 6330 
Are NOS and new manufacture comparing oranges to o... 6330 
That all is incorrect in a way…. 6330 
NOS vs new 2A3 tubes 6330 
The identical operation environment? 6330 
Preferred 2A3 operating point 6330 
The sound of the 2A3 however? 6330 
Circuit modification for 2A3 optimization 6329 
How to get max power from 2A3 6329 
2A3 voltages, loads and realized output power 6329 
Optimal operation of 2A3: an experiment 6329 
Tubes, Whole Circuits, Expectations and Sound 6329 
Gain is not power. 6329 
2A3 amplifier modification & Optimization 6329 
Specialized DSET approach 6329 
6C33/2A3 DSET? 6329 
SET usable power and making the most of it 6329 
The 2A3 loading 6329 
DSET solution for EdgarHorn? 6329 
Optimizing the 2A3 6329 
How much to DSET a DSET 6329 
DSET for Titan 6329 
The Best of All Worlds 6329 
Multiamp setup 6328 
Optimizing the (NOS) 2A3... "KM-style"? 6328 
There are many opportunities, it all depends what ... 6328 
Modifying amplifer to optimize NOS 2A3 performance 6328 
Conceptualizing Melquiades DSET is done 6322 
2A3 and 400V supply 6322 
Pudding and the chicken wires 6321 
Another shot at numbers 6321 
How to cook the "uninformed" anode. 6321 
Okay, so this might work.... 6321 
The DHT Milq DSET, the prebuilt draft. 6321 
Looks good, but.... 6320 
2A3 with slightly lover filament voltage? 6320 
Less is more... usually. 6320 
Where to burn gain? how? and where to get beter st... 6319 
Stepping Out 6319 
Said to be good, but 6319 
Gain to lose 6319 
Why nothing is simple with this damn amp! 6319 
Another idea for losing gain 6319 
What's best 6319 
Options, options... 6319 
Actually, it is not so bad. 6319 
Other compromises... 6318 
Cathode vs. fixed with DHT 6317 
Is it glowing yet? 6297 
It is comming.... 6297 
The new MF channel. 6291 
I started to work on the Milq’s DHT Island. 6290 
Innerstage loading vs. OPT loading. 6282 
The intestage loading talk. 6279 
My playback feels like it is broken. 6274 
1 in 50? 6274 
Yes, it was after PP2000 6274 
Die Walküre soldering. 6273 
The post Die Walküre soldering 6272 
Another amp arond YO186 6271 
Gain? 6271 
The Unexpected problem with DHT Milq. 6271 
Simple is good 6270 
Ok, I am moving forward. 6270 
The Milq DSET is up. 6269 
My DH DSET – 2 days later. 6267 
Here is more data to reconcile. 6267 
Hm, that is interesting and unpleasant so far. 6266 
Ok, what do I want? 6266 
Let Go of Some Conceptual "Restrictions"? 6266 
The Milq DH DSET, the further thoughts in progress. 6266 
Crunching Numbers; Shaping Sound 6266 
How about the tweeter? 6265 
Tweeter Efficiency? 6265 
Safe and Sound 6265 
More mystery with tweeter but still on the subject. 6265 
Some clarifications. 6265 
How about that?!!! 6265 
Further considerations: DC-coupling. 6263 
Head Room 6263 
To kill the mandatory 13dB 6262 
DC coupling and killing 13db and driving 6e5p miller and.... 6262 
I do not think that it might be damaging… 6262 
Again with the PS 6262 
AKA J.C. Morrison’s amp but… 6260 
Parallel Universe 6260 
Melquiades HD MF DSET, Draft13. 6258 
Why I let other people build them... 6258 
Ok, it's going to right direction. 6258 
Ok, it looks already very close…. 6257 
The Loftinish-Whitish, well sort of…. 6254 
MF: the pre-final version. 6254 
Loftin-White? 6254 
Did anyone hear the PX4 amplifiers? 6254 
What Could use Improving at This Point? 6254 
The Milq’s MF front-end is done 6250 
Why I Let Other People Build Them, II 6250 
Define really quiet 6249 
Another variable of sound 6249 
Backlash? 6249 
Alternative filament supplies 6249 
I kind of faced a problem with AC 6249 
Going down the DC path 6248 
It is not about the “whole sound” but about “molec... 6248 
Molecular sound 6248 
AC-DC heater supply 6248 
The Tentlabs are $10 worth PS. 6248 
The unexpected resolution of AC vs. DC quandary. 6248 
The devil is less scared than it depicted. 6248 
Hiss or Hum 6248 
AC transformers 6248 
I have seen the Promised Land 6247 
OK, the choke noise is not a problem anymore 6247 
Ok, it is working fine but… 6246 
Divide and Conquer 6246 
The design phase is over. 6245 
The unexpected insanity! 6244 
Loading 6244 
Looking for inspiring ideas for 'universal' loadin... 6244 
A filaments Sherlock Holmes wanted. 6244 
Going the Distance 6244 
Read the f*** manual! 6244 
Agreed. 6244 
I agree 6244 
The filament transformer 6244 
Center-tap and options 6244 
Something like this…. 6244 
Avoiding "Dial-an-Amp" 6244 
The foreplay is going on. 6244 
Split balance 6243 
Further thoughts about my DH filaments 6243 
The Shuguang 2A3 tubes. 6243 
SHuguang 6243 
Going through…. 6242 
The 2.5V noise vs. 4V noise. 6241 
More about Shuguang 2A3C 6241 
Hum vs voltage 6241 
Meow about the tubes… 6241 
To Be a Content Cat 6241 
Completed! 6238 
Tradition 6238 
Absolutely beautiful! 6238 
The 'film' caps in PS 6237 
Science or religion 6237 
Mass Extinction 6237 
Electrolytics, technology and time 6237 
No more questions about PS capacitors. 6237 
Capacitor choices 6237 
Good time. Welcome back. Thanks God. 6236 
The minor day of Quartets. 6236 
Them's the Breaks 6236 
Eventually! 6235 
So Soon? 6235 
DHT MF channel and 6-ch amp: first conclusions 6235 
All Abuzz about Nothing 6234 
The wire for DC-coupling 6234 
The Dirt on DIY Backlash 6234 
DSET vs. the “better tubes”. 6234 
How to test the DH tubes properly? 6233 
Pairing up tubes for SE use 6232 
The DHT live reserve 6231 
Some interestng models 6231 
Eaten alive. 6231 
The tubey déjà vu? 6230 
The new concept of my output transformer. 6226 
The 4V takes a lead. 6222 
Listening the DH and the striped down version of M... 6219 
I kind of slowly learn what I need. 6219 
More HF from a transformer and DHT? 6217 
Since You Don't Need the Gain 6216 
Exiting the design mode? 6216 
Bye-bye the input divider on MF! 6216 
A few steps back and a gaint leap ahead. 6212 
Single-stage vs. DHT amp. 6211 
Setting up the new Playback 6210 
And the winner is… so far 6207 
If you like type 45... 6207 
Type 45... they're not all the same 6207 
Favorite Flavor? 6207 
The 45 times Meow... 6207 
The problem that I see is… 6207 
Running the 45 6207 
The 10Y...and bye bye Newton 6206 
The commentaries about everything. 6206 
Driver tube and biasing 6206 
DHT drivers 6206 
The ideas are worth trying? 6206 
A question about the polishing the things…. 6202 
The Particular Tube, I'm afraid... 6202 
Driving the 45... cathode first 6201 
ST or Globe; old or new... 6201 
Whatever sticks to the wall as an operation point ... 6201 
The attenuating crap in secondary. 6201 
Operating points and cathode current 6201 
The Burgeoning Opportunities! 6201 
Actually it is not so simple. 6201 
Resistors at the front 6200 
A minor alternation of a position 6200 
The era of enlightenment. 6197 
The devil is in the details.... 6197 
Constructing Sound 6197 
A new view on the DHT evaluation. 6196 
The “strange” YO186 6187 
The dead guy’s lessons. 6142 
2S4S and 2A3 6133 
Ho to use the YO186 6126 
YO 186 fundamental flavor 6126 
The YO-YO tube and "fundamentals" channel 6126 
The live without the YO186, again.... 6124 
Not anymore! 6113 
The very good YoYonisation! 6112 
….above and below two very clean channel. 6111 
The DHT and esoteric imaging deformation. 6098 
DHT, YO186, or??? 6098 
I had no idea how ‘different’ it is. 6045 
The Kazitsky Manufacturing and YO104, some history. 6044 
"Absolution and Eternal Refuge." 6041 
Sofia Electric Type 45 Mesh 6031 
The true association of YO186's Sounds. 5793 
All the Best from Burgundy 5793 
Cheesy tubes 5792 
Me and my DHT references… 5683 
Y0-186 in winter. 5586 
Y0-186 sounds like… 5585 
Rethinking the YO186 tube. 5554 
In My Dreams 5554 
Grunt from type 45? A ridicules comment. 5554 
Blame? 5553 
When good is not good enough. 5553 
45s, Drivers, and 45s 5553 
Hm, that was so simple after all! 5552 
How the YO186 was used. 5136 
What is old is new? 5135 
YO186 vs. type 45. 5134 
The YO186 is gone.... :-( 4683 
That sucks. 4683 
YO186 4681 
Hm, what the hell is going on? 4681 
I do not think that anybody but me would like YO186 4681 
A hallucination? 4678 
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