SSE - Choke and Supp Cap Position

[Tibetan]

I'm working on the layout/parts ordering for my build which is slowly coming together. So far, I had planned on positioning the Power Trans and OPTs conventionally at the top/back of the chassis - i.e. Power trans in one corner, rotated 90 degrees to the OPTs. positioned side by side at the other side. My question concerns positioning the choke and supp cap.

To save size and space on the main chassis, I could build a small frame inside the enclosure, using V slot 2020 aluminum (grounded of course) and mount the choke on it below the Power trans and the supp cap laying horizontally on the frame under the OPTs.

Does anyone foresee a problem with that approach?

 

[PDL]

You could run into magnetic coupling, be sure to rotate the cores 90 degrees from each other. Heat could also be an issue.

Other than that, I think you should be okay.

 

[Tibetan]

@PDL Thanks for the response. Yes, I will be conscious of orienting the cores at 90 degrees and providing good ventilation (I'm thinking of using perforated aluminum for the main chassis that the transformers will be mounted on).

 

[spiggs]

I have the supplemental cap mounted under the OPTs and top plate on my SSE just as you propose. The amp is quiet and I could not see any change in the noise floor when I added it in.

 

[Tibetan]

@spiggs Proof of concept 🙂 Thanks!