Choke... The side makes difference?

[blindsjc]

Never paid attention to this
before today... The choke needs
to be connected in some special
way? I mean...wind start to supply
or wind end to supply?

Thanks!

[gingertube]

Usually chokes are NOT considered to have an "In" and and "Out" and can be connected either direction. That is why the wires are never identified as an IN and an OUT.

It is true that the output side of a choke will have a smaller AC voltage component on the DC voltage.

Chokes are wound on a core starting in the middle and ending at the outside and so it is just remotely possible that connecting the choke so that the input (larger AC voltage) feeds the middle "start" of the choke coil and the output (smaller AC voltage) is taken from the outside "end" of the coil could give less coupling to nearby components.

My opinion is that it is highly unlikely you would notice any difference when simply swapping the wires to a choke.

Since it doesn't matter to the chokes operation as a choke, if the outside of the coil wire is easily identified then use it as the output.

Cheers,
Ian

[blindsjc]

Thanks friend,
I was thinking about it when saw
this hammond choke picture, using
a red and black wire:

http://www.hammondmfg.com/jpeg/194C_b.jpg

Thanks a lot for your reply.
Cheers

[audiowize]

You will often see parallel feed plate chokes labelled in terms of input/output, but I fail to remember off the top of my head how it goes. I'm sure Mikey knows.

[Sheldon]

Originally posted by audiowize
You will often see parallel feed plate chokes labelled in terms of input/output, but I fail to remember off the top of my head how it goes. I'm sure Mikey knows.

The capacitance per turn will be a little less on the inside of the winding, so that would probably be connected to the plate. Doubt the absolute difference is much, but it's not a bad idea to be consistent channel to channel.

Sheldon