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GB for TPA3116/8 PBTL bare pcb

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birca1987

Member
Joined 2013
syklab said:
I see that you also got the Samsung OEM SMPS power supply, have you use it yet? How you like it? I think this is one of the best SMPS I seen so far and I have been using it to power my 3116 amp too.
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Yes, i got 3 pieces of the psu and I liked it a lot, very strong bass and a lot of detail, is the same as my lt1083 linear psu, I think, never compared them.
An externally hosted image should be here but it was not working when we last tested it.
 
DUG

DUG

Member
Joined 2003
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irribeo

Member
Joined 2013

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matt_garman

Member
Joined 2008
Paid Member
DUG said:
Some people have used this stuff:

J-B Weld | Original Cold Weld Formula Steel Reinforced Epoxy

I haven't for heat sinks but it really is a great product and I would use it if I needed to use it for heat sinks.
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I'm far from an expert, but the FAQ for J-B Weld says it's not electrically conductive. Not sure what that means for thermal conductivity, but for adhering a heatsink to an IC, you want something that is very thermally conductive (to get the heat away from the IC and to the sink as quickly as possible).

I recently bought some of this: Arctic Alumina Thermal Adhesive. I am familiar with this company from working with their product that is designed to mate CPUs to heatsinks ("Arctic Silver"). The latter compound is not a permanent adhesive, though, as CPU heatsinks have mechanical mounting mechanisms. The "Alumina" product I linked is a true adhesive, however, it's both a 2-part epoxy-type product and thermal compound.

There are other thermal adhesive compounds of course, that's just the one I've happened to use. I used it to glue a heatsink to the TPA3116 IC on a Ybdz "Wiener" board.
 
ChrisMmm

ChrisMmm

Member
Joined 2005
cjkpkg said:
Any good recommendations on some type of thermal "glue" to adhere a heatsink to the chip? I have some sinks but they would not utilize mounting holes.
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I have used the $1 tube stuff on Ebay, it certainly fastens the sink well with a very thin layer of adhesive. No idea of the heat conductivity as the 3116 puts out very little heat.

For the DUG board I glued the sink to an aluminium bar that was drilled and bolted to the board/chip - easily removed.
 
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DUG

DUG

Member
Joined 2003
lead ear said:
I'm interested in a DIY board like this but stereo BTL, I have no need for PBTL because I will be driving 8 ohm speakers.

Is there any chance that you will make a stereo BTL spinoff?
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First: most people are using these for an 8R speaker alone...the options for most of the parts are its' features.

I have four stereo BTL boards coming next week...one is spoken for...a kit for that one is also requested.

Doug
 
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