[hpsdr] heat sink for u58

[Ken N9VV]

Here is a link to the instructions that Abhi has prepared for the 
ANAN-10 upgrade kit to fit the TAPR Hermes board into the Apache-10 PA 
upgrade chassis:
<URL: 
https://apache-labs.com/al-downloads/1004/10W-PA--Housing-Kit-Files.html
 >

As Abhi explained in his previous posts:
Boards supplied by Apache Labs have a 1yr Warranty and differ from those 
produced by TAPR. In addition to various pre-manufactured cables, a 
power switch, and antenna connectors; Apache has included a passive 
heatsink for Apache U58 in order to cool the Switching Mode Power Supply 
(SMPS) when it is under heavy load from (FPGA) firmware running 4 or 
more RECEIVERS at one time.

Please correspond with Apache Labs Support <support at apache-labs.com>
if you have any questions regarding your particular board, parts, or 
instructions contained in the pdf listed above.

thank you,
73 de Ken N9VV


On 11/3/2012 6:44 PM, Chris Day wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
> U58 is the designator on Apache Lab boards for U24 in the TAPR
> schematic. It's tiny. The instructions for assembling the ANAN-10
> PA/case suggest a stick-on heatsink to be applied to the _back_ of the
> PC board under the switcher. It is listed as optional. While my order
> for the Hermes board was nominally for a "TAPR" board, apparently I got
> an "Apache" board, at least as far as the silk screen is concerned. :-)
>
> Chris Day
> AE6VK
>
> [Apologies for any duplicate messages. Microsoft changed the way mail
> works again, and I haven't figured it out yet. Grrrr.]
>
>
>  > Date: Sat, 3 Nov 2012 08:58:40 +0100
>  > To: hpsdr at lists.openhpsdr.org
>  > From: la2ni at online.no
>  > Subject: Re: [hpsdr] heat sink for u58
>  >
>  > ***** High Performance Software Defined Radio Discussion List *****
>  >
>  >
>  > Hi Steven.
>  >
>  > U58?????? This is the switcher in the 5 V PSU. There is no space for a
>  > heat sink. The only IC that needs a heat sink is the ADC, U10. Search
> for
>  > copper coolers for DRAM on e-bay. I bought 16 from China. May be you can
>  > find them locally, ask the PC over-clocking people.
>  >
>  > 73, Kjell
>  >
>  >
>  >
>  >
>  >
>  > På Fri, 02 Nov 2012 23:41:43 +0100, skrev stephen pearce
>  > <pearce.sg at gmail.com>:
>  >
>  > > ***** High Performance Software Defined Radio Discussion List *****
>  > >
>  >
>  >
>  > --
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