[hpsdr] Mounting Hermes

[Kjell Karlsen]

Hi All.

I found another on E-bay that is a bit thinner:

http://www.ebay.com/itm/Copper-Heat-Sink-For-DDR-DDR2-DDR3-RAM-Memory-Cooler-/110703365805?pt=US_Memory_Chipset_Cooling&hash=item19c66f4ead

And half the prise!

73, Kjell





På Thu, 16 Aug 2012 18:51:54 +0200, skrev Kjell Karlsen <la2ni at online.no>:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Berndt.
>
> I think the copper heatsink is perfect! I am going to order one pack  
> today.
>
> 73, Kjell
>
>
>
>
> På Thu, 16 Aug 2012 13:47:44 +0200, skrev Berndt Josef Wulf  
> <wulf at ping.net.au>:
>
>> G'day Kjell,
>>
>> Understood. I've an account with element14 and they stock the heat sink:
>>
>> 4306557 FISCHER ELEKTRONIK - ICK SMD E 15 SA $6.99
>>
>> However, thermal tape and adhesives are not cheap:
>>
>> 1211723 FISCHER ELEKTRONIK - WLK 5 - ADHESIVE, THERMAL CONDUCTIVE $46.77
>> 1841554 ELECTROLUBE - TBS20S - ADHESIVE, THERMAL BONDING, 2 PART $19.73
>>
>> An alternative may be a copper forged 14mmx14mm BGA heatsink with a 3M
>> 8815 adhesive tape
>>
>> http://www.ebay.com/itm/Enzotech-BCC9-BMR-C1L-Low-Profile-Copper-BGA-Heatsink-/330701170645?pt=US_Memory_Chipset_Cooling&hash=item4cff5367d5
>>
>> It is 9mm in height, 1mm taller than the Fischer heatsink, but I can't
>> see any reasons why it couldn't be trimmed down if required. This is a
>> pack of 8 heatsinks @ $14.95.
>>
>>
>> Thanks,
>>
>> 73, Berndt
>> VK5ABN
>>
>> On Thu, 2012-08-16 at 12:51 +0200, Kjell Karlsen wrote:
>>> Hi Berndt.
>>>
>>> I am sorry but I can not find the PN. The one I use is made by 3M but
>>> nothing is marked on the roll. When I do a Goggle search I find type  
>>> 8805
>>> pressure sensitive tape, this is probably the one I have. It is 5 mils
>>> (0,125 mm)tick. Several suppliers comes up on the search list.
>>>
>>> 73, Kjell
>>>
>>>
>>>
>>> På Thu, 16 Aug 2012 10:39:38 +0200, skrev Berndt Josef Wulf
>>> <wulf at ping.net.au>:
>>>
>>> > G'day Kjell,
>>> >
>>> > Can you tell us the a part number and supplier for the thermal  
>>> adhesive
>>> > you used?
>>> >
>>> > 73, Berndt
>>> > VK5ABN
>>> >
>>> > On Thu, 2012-08-16 at 09:50 +0200, Kjell Karlsen wrote:
>>> >> ***** High Performance Software Defined Radio Discussion List *****
>>> >>
>>> >> Hi Frank.
>>> >>
>>> >> When Hermes PCB was constructed, it was designed to be installed  
>>> both
>>> >> ways. For use with Apollo in the Hammond enclosure (1455Q1601)  
>>> Apollo is
>>> >> mounted on the bottom for cooling of the PA transistors and Hermes  
>>> is
>>> >> installed on top with the components facing up. The interface  
>>> cables are
>>> >> connected to the bottom of Hermes (TX out, RX in, Power in and SPI).
>>> >>
>>> >> For use with Abhi´s 15 W PA, Hermes is installed on top with the
>>> >> components facing down. There are provisions for interface  
>>> connectors on
>>> >> the component side of Hermes for this use. Remember that the SPI
>>> >> connector
>>> >> on top is different from the SPI on bottom (imaged)!
>>> >>
>>> >> For better cooling of the ADC, I am using a small Heat Sink (Fisher  
>>> PN:
>>> >> ICK SMD E 15 SA or equivalent) fastened to the top of the ADC using  
>>> dual
>>> >> sided heat transfer tape or glue. This seems to be sufficient for
>>> >> cooling
>>> >> even with 7 receivers running. I hope Phil can confirm this?
>>> >>
>>> >> 73, Kjell
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> På Wed, 15 Aug 2012 23:56:47 +0200, skrev FRANCIS CARCIA
>>> >> <carcia at sbcglobal.net>:
>>> >>
>>> >> > ***** High Performance Software Defined Radio Discussion List  
>>> *****
>>> >> >
>>> >>
>>> >>
>>> >
>>> >
>>> >
>>>
>>>
>>
>>
>>
>
>


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