Very funny, but also very far from the actual working principle of the G21 (other than perhaps for the overall-clipper part).
Infundibulating relates more to magnetic amplifiers in that we selectively collapse the core magnetic field by loading it with a DC-component (derived from signal itself
) - sorta an extended but passive version of the principle in Ortofon STL631 -
http://www.etec.dk/foto/ortofon/STL631_01-Schematic-StereoValveTrebbleLimiter.jpg
principle description here :
https://www.jailhouse.dk/dia/ortophon.pdf
/Jakob E.
Ah wow ! ... thanks for this !
Now I finally know the wiring scheme of the pair of JS ST3450 I'vo got here,... they come from an old STL631 that was converted to run as a radio limmiter for FM radio, then it retired, got mangled by someone, got mangled by another person, ended up in a pile of junk of some other guy's attic... where I pulled it out as it had some transformers on it.
I have some more parts of this device, the power transformer, the frame, ST3452 and ST3451.
I was planning on using the input transformers for my stereo 864 build, I've used them in a transformerbox and they sound great, love the sweet top end of these. I notice in the 631 schematic the CT is at the input side, in the 864 schematic it is at the output side. They sound the same in both directions to me, so I guess I will be fine reversing them.
I have watched that youtube clip before, nice guy, nice concept.... but that audio, either processed or not, sorry but that just sounds so bad to my ears, the only thing I hear is nasty squarewave distortion.
I've tried some of this stuff and all I got was nastyness.
I think creating a passive device that sounds good really is a fine art, before you know it you will end up with nasty distortion and it will suck the life out of the dynamics and details. Not an easy thing to do, and that's probably why there are not so many out there.