John Curl's Blowtorch preamplifier

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PTN-series from Vishay.



Sigurd

analog_sa said:



Do you have a type number/source for those? I'll be eager to try them out. The old Shinkoh are still among the best resistors i've tried and even the magnetic Audio Note are not half bad. Quite possibly coloured, but in a way that pleases my ears. Smds will fit nicely on a Shallco.


Has anyone tried Pass-style bipolar switches for an attenuator? I never had much luck with relays and wonder if semiconductor switches may sound better.
 
hose physicians would need to revise their detector design and pile up amplifiers

Hehehe, I fully second that 😀 But please only high-quality gear 😉

Well, neutrinos do react with matter, but as you already said not on a regular basis, so to say. If we however want to talk about real effects, than I should have mentioned van-allen belt...

But that would only be half the fun 😉

Have fun, Hannes
 
One should wear a hat/helmut made of aluminum foil, or if you have it, Mumetal foil (preformed preferably), for maximal positive influence over your magnetic radiation issues. :cubist:

Besides out here in the countryside there are not too many magnetic fields from distant sources, kind of a non-issue.

As always ymmv.

_-_-bear
 
Welcome back Joshua_G, I hope that all went well.
Wow, Audiowolf, now we are COOKING! This is the level where we live, fellow engineers, in the realm of serious audio design.
I have used tantalum pots for input loading of Vendetta Research phono stages, and I hope to use up my existing supply before I leave this Earth.
In measuring these pots for excess noise, I did find that they were good, but not as good as wire-would resistors. It would be interesting to test fixed tantalum resistors for excess-noise, or at least look at the spec sheet for a number.
 
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