To achieve a good heat sink coupling/bonding of 2 surfaces this is what heat sink compound is for. Just having a smooth surface does not insure a good bond between 2 surfaces due to different flatness/shape.
I wonder in any Mitsubishi power bricks mounting instructions what they recommend. Is its surface being used for any RF connection. I hope not, not good engineering. 73, ron, n9ee/r >From: DCFluX <[EMAIL PROTECTED]> >Date: 2007/07/16 Mon AM 12:12:13 CDT >To: [email protected] >Subject: Re: [Repeater-Builder] Re: 224 MHz PA fun and war stories > >Gentleman, > >A word of caution with the new Mitsubishi power bricks. Please be sure >to lap the bottom side of the brick flat using a belt sander with 150 >grit and followed with 400 grit sand paper to achieve optimum >smoothness. > >No one is sure what they were thinking with the bottom side of the >module on the latest generation of bricks, but unless the heat sink >contact is in the 100% range, you risk blowing up the module due to a >ground and a heat resistance problem. > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
