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: [email protected] [mailto:[email protected]] 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 donšt 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" <[email protected]> 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: [email protected] [mailto:[email protected]]
On Behalf Of Don Caprio
Sent: Saturday, October 4, 2014 5:24 PM
To: [email protected]
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
[email protected]
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