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Site News: 26 Aug 2026

Romy the Cat has found another room. I’ve started a new fiction project under my name, Roman Bessnow. The new work is at MutationsBook.com
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Macondo Acoustic System
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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.
How to get a LOT of SET power. 7512 
Son of a butch triode. 7512 
How to hear the voice of God. 7511 
55W of SET power from paralleled 845. 6567 
Big SETs - Just ideology? 6330 
… those monster SETs - very interesting subject. 6329 
Cost and justification of existence 6328 
Any option for DSET on GU-48? 5663 
Mastodont amp 5663 
Another might-be-interesting idea. 5663 
SE SS Class A 5663 
Transformer are not an issue at all. 5663 
Seems I'm semi-prepared... 5663 
Why GU-48/833? 5662 
It might be any powerful tube 5662 
Not For Kids! 5662 
Not necessarily. 5662 
Why so apocalyptic, Paul? 5662 
Using Commercial Products vs DIY HV SET From Scratch 5662 
Being an idiot... 5661 
If on suicidal mission 5661 
Zero-crossing ? 5661 
The grand scale of the concept. 5661 
Zero inspiration bias 5660 
Drum'n'bass party 5658 
Yes, it is interesting to fantasize 5658 
833 DC to 833? 5658 
Drum'n'bass party amp 5654 
Bread Board 5654 
Anybody is willing to build something like this? 5654 
Me... 5653 
Keep the eyes on the ball. 5653 
Reasons... 5653 
D'n'B v2 5653 
No go! 5652 
Talking about Powerful SETs 5639 
Sounds like PSEP (Parallel Single-ended Pentode) 5638 
Class A1 SE Pentode? 5638 
Audiopax 88... 5638 
Paralleling 6421215685 tubes 5638 
GU-80/GU-81 5637 
11V Direct Heater 5637 
Can it be it? 5637 
GU81M 5637 
More info please 5637 
Uuummm... 5637 
GU/GM vs. 6C33C 5637 
Bee's Knees 5637 
GU81 considerations 5636 
Triode 3-Stage 5636 
2 stage 5636 
Only one transformer per amp. 5636 
Gap 5636 
You've promissed... 5636 
There are more human ways to electrocute your pets.... 5636 
How big a gap? 5636 
2kV-3kV of B+ vs. 1A of plate current 5636 
HAHAHAHA! 5636 
There is nothing to laugh. 5636 
The highest path... 5636 
Closing the Gap 5636 
Missing miliampers 5635 
BAT Man 5635 
Why? 5635 
Are commercial PSETs made? 5635 
Wrong Again... 5635 
Non-linear electric chair 5617 
I would look at the problem wider. 5616 
Starting point? 5616 
Welding and other activities 5612 
Unfortunately no one is looking in this direction. 5612 
SS cheap trick 5612 
Gain, Phase and Corrected Frequency 5612 
A cheap trick 5612 
Multistage considerations 5611 
Too many unknowns in both cases 5611 
The only way seems to try and compare 5611 
Overall Gain 5611 
Have the cake and eat it 5601 
Drifting Away 5601 
This amp is OK only if you know the resulting Sound. 5601 
Demagogy 5600 
Stability 5600 
Bias 5600 
Active/Reactive 5600 
GU81M with a filter 5508 
Model Citizen 5508 
Modeling 5507 
Cap on Grid? 5507 
OK 5506 
Z 5506 
Plots 5506 
The high-power amp from Moscow. 5068 
A good 150W project for ULF 4829 
GU81M 4829 
212E PSE. 3685 
212E crazyness 3685 
I am not willing to do it. 3685 
Universal amp? 3684 
I do not know details. 3684 
ElPaso TubeAmps 3496 
Not a refrigerator but... 3390 
EIMAC and Amperex 2555 
170W WTF SET? 1122 
I think it is typical marketing BS 1122 
When Marketing (and a Moron) Kills Sound 1122 
Does not make sense to me. 1121 
All context of this site except the Forum's posts Copyright © Roman Bessnow 2004-2026
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