John Curl's Blowtorch preamplifier part III

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I'm interested in what all the people in this thread eat. It's similar to being more curious about what people you know eat in person, as opposed to taking random polls among strangers. It is the Lounge... (even if it gets moderated like it's not at times)

BTW before I started digging into more electronics stuff this morning, I indulged with a cinnamonroll french toast at some local place I had never been. Not my fav, but I had to try... I prefer day old sourdough baguette french toast, as opposed to all other french toast - nothing touches it IMO thus far.



On a further note, I was just discussion with someone about how power conditioners' affect on amplified instruments is almost impossible for countless musicians to comprehend until they hear it and even then perhaps not. They typically cannot distinguish the difference between quality of a sound, and type of sound.
 
On a further note, I was just discussion with someone about how power conditioners' affect on amplified instruments is almost impossible for countless musicians to comprehend until they hear it and even then perhaps not. They typically cannot distinguish the difference between quality of a sound, and type of sound.

🙂 😎

some 'audiophiles' too.

I was going to write an article on How To with data. A good DIY project that is super simple yet super effective. I like simple and max effectiveness 🙂

But now Linear Audio is no more. No Audio.... no TAA and now no L.Audio. Now what?!

-RNM
 
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BTW before I started digging into more electronics stuff this morning, I indulged with a cinnamonroll french toast at some local place I had never been. Not my fav, but I had to try... I prefer day old sourdough baguette french toast, as opposed to all other french toast - nothing touches it IMO thus far.
Sounds yummy. I have never had baguette french toast nor have I ever come across a sour dough baguette. Is this a local thing? I suppose I could try to make one.
On a further note, I was just discussion with someone about how power conditioners' affect on amplified instruments is almost impossible for countless musicians to comprehend until they hear it and even then perhaps not. They typically cannot distinguish the difference between quality of a sound, and type of sound.
Or could it be that they don’t expect amplified sound to be anything close to the real thing so they don’t bother paying attention to subtle differences? I reckon they are aware of subtle differences in real instruments.
 
I think that may put too much burden on “competently”. I reckon the number of ways by which mains noise and impedance could affect a circuit are many and pernicious, and the better the circuit the more the small imperfections that make it through stand out. And an incompetent mains filter could impair the sound more, of course. For mainstream-fi they may well be worthless. I have never auditioned any but I have gone to a lot of trouble to isolate my amp from the mains.
 
Let me put it another way. There is very little published on the effect of power filterning on the output of a circuit. Lots of stuff on showing the reduced grot on the mains.

For a home build I would always specify the £7 for an electrostatic screen on a transformer. This is more for peace of mind. It would be interesting to actually get a comparison done of that vs an external power filter and std trafo std trafo on its own to get some data on if any of this actually matters.

But I am am outlier. Everything that can be will be run off batteries moving forwards. When I am finished only my power amps will have traditional linear supplies. Not for any audible enhancement mind, just because I can.
 
Thanks for those voicecoil measurements. Looks like skin effect when the real component is the same as the imaginary component.

Looks like the motor assembly has about 1.39x the permeability of air. I expected it to be more.

What about voicecoil harmonics when locked in place in the gap? Or inductance vs DC bias?
 
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