Re: [N8VEM-S100:5329] FP MIni Board heat sink

[Don Caprio <ilv...@gmail.com>]

Thank you John for the warning.

In the kits I included a mica washer. I always try and use the mica washer.
Not only does it prevent shorts, it always provides a heat insulator.

Mine never got too hot but to be honest I never ran very long. I ran it 
overnight
once doing a 8251 serial test.

Here's an opportunity for someone to school us on Thermal Resistance (C/W).
There are many heat sinks for TO-220 package. All offering different 
levels of
thermal resistance. I'm not sure what the C/W values represent. Do higher
numbers mean better cooling or visa-versa?



On 10/ 6/14 06:08 PM, John Monahan wrote:
> There are quite a few LED's on the board so the regulator will run hot with
> a small heat sink. I always like to use the larger ones remembering in
> electronics, "heat kills".  There is plenty of room anyway. See picture.
>
> John
>
>
> -----Original Message-----
> From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On
> Behalf Of Richard Cini
> Sent: Monday, October 6, 2014 5:46 PM
> To: S100-Post
> Subject: Re: [N8VEM-S100:5328] FP MIni Board heat sink
>
> What? Maybe I missed something somewhere. Where is there a risk of a short?
> I don¹t see where the HS would contact anything other than the pour under
> the HS.
>
> Rich
>
> --
> Rich Cini
> Collector of Classic Computers
> Build Master and lead engineer, Altair32 Emulator
> http://www.classiccmp.org/cini
> http://www.classiccmp.org/altair32
>
>
>
>
> On 10/6/14, 8:10 PM, "John Monahan" <mon...@vitasoft.org> wrote:
>
> > Just a reminder guys, be sure and use a mica washer under the 5V
> > regulator heat sink  to prevent ground shorting  on LHS front of board.
> > John
> >
> >
> > -----Original Message-----
> > From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com]
> > On Behalf Of Don Caprio
> > Sent: Saturday, October 4, 2014 5:24 PM
> > To: n8vem...@googlegroups.com
> > Subject: [N8VEM-S100:5319] FP MIni - International Shipments
> >
> > Guys,
> >
> > I completed the remaining international shipments today.
> >
> > I don't have time to go through the list and figure who paid shipping
> > and who are awaiting totals.
> >
> > This is on the honor system. If you pad sufficient postage ok, cool.
> > If not please send the balance.
> >
> > Matt Turner       $9.50
> > Ian McLaughlin    8.24
> > Leon Byles         13.41
> > Nik Brisevac       13.41
> > Fabio Battaglia    20.07
> > Malcom Macleod 26.73
> >
> > Thank you.
> >
> > --
> > Don Caprio
> > ilv...@gmail.com
> >
> > --
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--
Don Caprio
ilv...@gmail.com