Chokes for MoFo

[iansr]

Same sinks as I’ll be using Ed so I’ll be interested in your layout, although I’m favouring monoblocks given the size / weight.

[simon]

What are you thinking for the PS ed? Looks like a couple of filter caps per channel but only 1 choke? So probably not a choke at all!

I added a common mode choke between the SMPS and MoFo yesterday but couldn't hear any difference. Another filter cap and possibly a choke might be beneficial though?

[ed]

caught me on the hop chaps.....

I'm thinking the layout will be much the same as the photo.
The chassis will be the same as for all my F amps, i.e 1 piece of ali bent to form the bottom and the back. The top and front will be seperate pieces, all joined with 15mm angle bolted to the sinks.

the PS is those meanwells direct into the latfet, no filter.
Simon, the transformer in the middle is a 2 x 12v for a split rail for the opamp.....it will be a few ufs either side of a 7812/7912 into the filter shown on the last circuit I posted:

https://www.audio-talk.co.uk/phpBB3/vie ... &start=106

...The big electrolytics in the photo are just for mockup as they were on the shelf twiddling their fingers.

I'm in the middle of drawing up the pcb so more later.

[simon]

Ah I see, that makes sense

[ed]

I think(hope) this is correct. I will check a few more times before sending the gerbers...

mofo2 pcb.jpg (217.04 KiB) Viewed 1684 times

mofo2 3d.jpg (72.86 KiB) Viewed 1684 times