<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Any recommendations for the heat sink?<DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Neal Campbell K3NC</DIV><DIV><A href="mailto:nealk3nc@gmail.com">nealk3nc@gmail.com</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>telnet to our DX Spotting clusters at: dxc.k3nc.com, ports 12001 and 23</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>"Devoted to Dogs: How to be your dog's best owner" </DIV><DIV>Great Dog Book at <A href="http://www.abrohamneal.com">www.abrohamneal.com</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN></SPAN></SPAN> </DIV><BR><DIV><DIV>On May 31, 2007, at 10:01 AM, FRANCIS CARCIA wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">***** High Performance Software Defined Radio Discussion List *****</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV> <DIV>Hi All,</DIV> <DIV>I was just looking at the A/D pc board layout. At work we usuall put a blob ot thermal epoxy under hot parts to sink heat to a thermal plane on the surface of the pc board. Usually the part is mounted over a small hole so the epoxy can be injected under the part die.</DIV> <DIV>You guys building your own boards may consider a thermal transfer pad under the part to cool it down a bit.</DIV> <DIV>The part is rated to work at 70 degree C ambient but hot parts die young.</DIV> <DIV>I think I will glue a hunk of copper to the top of my part. frank </DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">HPSDR Discussion List</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">To post msg: <A href="mailto:hpsdr@hpsdr.org">hpsdr@hpsdr.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Subscription help: <A href="http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org">http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">HPSDR web page: <A href="http://hpsdr.org">http://hpsdr.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Archives: <A href="http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/">http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/</A></DIV> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>