RE: Random Characters

Hey Ed,

IMHO they are pretty ineffective as they don't make good thermal contact
with the chips and usually trap more heat than they sink. If you've got
an old PC graphics card, they often have heat sinks on the RAM chips
which make decent MOS heatsinks.

BTW - which model/revision is it? I don't think I ever saw an original
breadbox with a metal FCC shield on anything but the VIC-II. All mine
just had the cardboard one (long since removed). I only ever saw metal
sheilds on the 64C and 64G.

Rob

-----Original Message-----
From: owner-cbm-hackers@musoftware.de
[mailto:owner-cbm-hackers@musoftware.de] On Behalf Of Ed Johnson
Sent: 07 February 2012 17:31
To: cbm-hackers@musoftware.de
Subject: RE: Random Characters

My motherboard has a factory shield/heat sync on it. 


Best regards,
Ed Johnson
 

-----Original Message-----
From: owner-cbm-hackers@musoftware.de
[mailto:owner-cbm-hackers@musoftware.de] On Behalf Of Gerrit Heitsch
Sent: Tuesday, February 07, 2012 11:22 AM
To: cbm-hackers@musoftware.de
Subject: Re: Random Characters

On 02/07/2012 01:23 AM, Ed Johnson wrote:
> Thanks for all the help. The new PLA arrived today.
> I performed the surgery on it and the patient is doing fine. It 
> actually seems to have clearer video.

Since you seem to have gotten an original MOS-PLA, you might consider
putting a heatsink on it.

  Gerrit


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