A 4u/400 chassis. The Mighty Zen Mod should be happy. 
Yet Another Aleph J Build
- Thread starter Toys4Boys
- Start date
as always
is heat sink upside down? (in pic) I usually mount the mosfets as someone described, just under the belt line...
Russellc
It's fine. The heatsinks are symmetrical. There is no "top" or "bottom".
everything is upside down, can't read that way
Who you kidding, you don't read boards, they are etched in your mind!
someone is not reading build guide, establishing baaaaad habits, in more than one way
Hmmmm....I believe the mosfets should be soldered after they have been mounted on the heatsink.
I think ZM was saying that the speaker wires are backwards.... Arrows toward the binding posts...
And yes, as Dennis said above, if you did not have the boards and MOSFETs mounted to the heatsinks when you soldered the MOSFETs into place, I'll walk you through how to do it.
IF the boards were just on your board holder while you were installing your wire after you had mounted the MOSFETs and then removed the boards... that's OK. What I see in the photo is that the legs on the MOSFET on the "left" appear to have been bent (if they were installed prior). It's not a worry, we can get it sorted either way.
The idea is that the legs of the MOSFETs should not be under any kind of mechanical stress (or minimum). So, when mounting / dismounting the boards, it's best to take extra care not to bend them.
If you had them installed properly, and you just removed them to install your wiring... when you put them back on the heatsinks, hit them with the iron again to reflow the joints and lessen any potential stress on the legs.
I can add a note or two to the guide. Folks that have not installed devices to heatsinks frequently may not know this, and it's a good reminder.
Have fun!
And yes, as Dennis said above, if you did not have the boards and MOSFETs mounted to the heatsinks when you soldered the MOSFETs into place, I'll walk you through how to do it.
IF the boards were just on your board holder while you were installing your wire after you had mounted the MOSFETs and then removed the boards... that's OK. What I see in the photo is that the legs on the MOSFET on the "left" appear to have been bent (if they were installed prior). It's not a worry, we can get it sorted either way.
The idea is that the legs of the MOSFETs should not be under any kind of mechanical stress (or minimum). So, when mounting / dismounting the boards, it's best to take extra care not to bend them.
If you had them installed properly, and you just removed them to install your wiring... when you put them back on the heatsinks, hit them with the iron again to reflow the joints and lessen any potential stress on the legs.
I can add a note or two to the guide. Folks that have not installed devices to heatsinks frequently may not know this, and it's a good reminder.
Have fun!
exactly!
@Toys4Boys - Definitely hit the legs with the iron when you re-install the board. If you did something similar with the other board, give those 6 legs a little love too.