It's on the top there.
There's a lip on the other side.
It's steel, not aluminum.
We're talking about holding a transformer in place, not holding a jet engine to a wing of an aircraft. Jeez.
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Cut along the dotted line for better separation?? ... Or mono-block amps??
Good looking modules, BTW.
Cut along the dotted line for better separation?? ... Or mono-block amps??
Good looking modules, BTW.
Great work by John Bali, I like this simetrical pcb design. I suggest not to cut, it's to litle amp for mono block
Hi Dirk,
Where did you get these plates for transformer? I got three toroidals from Plitron but they came without plates and screws.
Great work by John Bali, I like this simetrical pcb design. I suggest not to cut, it's to litle amp for mono block
It was just a suggestion ... Seems to me that there might be some cross-talk with or through the common heat sink ... just sayin', not knowing for sure.
On a bi-amp project I built a uni-heat sink with BPA amps on one side and MyRefs on the other. I didn't get cross-talk but at some random point severe oscillation would start - strong enough to destroy several tweeters attached to the MyRefs. After removing the HS connection plate (bottom), all five amps have been stable. All eight LM3886 chips are self-insulating TF style so I believe something was being transferred (creating large DC currents) via the heat sink.
Yeah, that is strange. There shouldn't be anything in the heat sink. Was it grounded?
Dirk, no I didn't get that far. the project has always been mounted on thin plywood.I have thought about the need for grounding but won't attempt it till I get some really cheap tweeters. The three I blew were decent quality Vifa drivers (ouch!). I've put that project on the shelf till I get the integrated build done, but will take your advice when I get back to it.
Thanks
Thanks
Oh! I'm not offering advice! I actually don't know if the heatsinks should be grounded. It's my assumption though that it would be best. Good luck!
