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Hammond 193P for the AC mod - can one add resistors?

24.126.202.243
Posted on December 5, 2016 at 09:59:34
rickmcinnis@dogwoodfabrics.com
Audiophile

Posts: 3040
Location: Atlanta
Joined: December 15, 2003
 I have a few of these laying about the house so I decided to try them with the AC shunt tweak.

These are 500 mA 5Hy 26R chokes. The resistance is less than half of the recommended value.

So far, I do hear, even with these, what others have experienced, though I suspect the effect is diminished due to the low resistance.

I have ordered some of the recommended 193Ls but wonder if I attached a 15R resistor to each lead would this work or would it make a more complex filter?

Anyone have an opinion, please?

Thanks,

 

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It ain't the resistance, it is the inductance you care about, posted on December 6, 2016 at 16:17:17
Chip647
Audiophile

Posts: 2646
Location: The South
Joined: December 24, 2012
 lower DC resistance for a given inductance is actually a good thing. Inductance affects AC sines and signals. DC is not a noise source. DC is bad if you have it riding on the AC but this tweak does not deal with that.

 

Thanks for the assurance, posted on December 7, 2016 at 07:27:24
rickmcinnis@dogwoodfabrics.com
Audiophile

Posts: 3040
Location: Atlanta
Joined: December 15, 2003
 I know I am hearing good qualities from this but had no idea how much it mattered.

Mr. Maher said repeatedly that the R should approximately equal the Hz and I have no idea how all of this works together in this application.

I know I read many of your posts when this was being discussed but this specific thing was never mentioned.

THANKS very much for your help.

 

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