DIY Class A/B Amp The "Wolverine" build thread

I see the boards are about to ship out so maybe pointless but does anyone have the dimensions of the heat sinks and the relay off of the board?
I have a little bit of time today where I can start laying this stuff out inside of my little chassis (toroids going external to the chassis)
1751719288548.png

1751719315208.png

1751719344086.png
 
The Wolverine has been built many times with superb results having the mains transformer in the same chassis.
Complicating the build with an externally mounted transformer doesn’t really gain any advantage here.
Well, I have had an issue with one amplifier before that had a toroid. I have since shielded it and still have idle noise. Somewhere I came across a bunch of pictures of someone building a wolverine. If you go down the timeline you'll see they started with an unshielded transformer and then moved to a shielded one. Why would they do this if not for encountering noise?

These exist, they are twice the cost of an unshielded toroid. If I could be guaranteed zero noise using this then ok. However, as aforementioned, I shielded another toroid and it just knocked the noise down, it did not completely eliminate it.
1751721686721.png


Not to mention how much physically large the chassis would need to be. Here's a reference of the size difference. I could place the toroids elsewhere which would give me more flexibility in positioning of the system, they would be less noise, smaller footprint because I could use the unsheileded ones, I could 3d print the toroid chassis so I save money not buying a giant chassis (the wife isn't thrilled about a giant ugly metal box in the TV room), etc.

More flexibility
1751722138215.png
 
Last edited:
@Bmsluite,
You are taking your observed sample of 1 for a different design and applying the findings to this (different) design. And then coming to the conclusion that this experience is more informative than of 100's of builds of this design that say otherwise.

If you choose to use a separate chassis, do it because it's what you want to do. This is a hobby after all, and if that's what's makes you happy, do it. However, do not incorrectly assume it's going to fix a problem that 100's of builds demonstrate does not exist.
 
  • Like
Reactions: jminassi