Actually much of the heat dissipated by the heat sink is radiated.
Therefore, it would behoove the operator to paint the wall behind his rig
flat black.
Mike N4NT@charter.net
----- Original Message -----
From: "Robert & Linda McGraw" <RMcGraw@blomand.net>
To: "Duane Budd" <w5ben@arrl.net>
Cc: <Tentec@contesting.com>
Sent: Thursday, March 16, 2000 6:18 PM
Subject: Re: [TenTec] Pegasus-operating horizontal
|
| To wit, I have a 50 amp PSU built and sold by Hewlett-Packard. The fins
| are horizontal.
|
| It would appear that vertical fins would be better in as much as warm
| air rises as opposed to horizontal fins, which with most Tentec radios
| tilted upward for ease of operation and view of the front panel, will
| cause the heat to rise into the radio.
|
| Bob K4TAX
|
| Duane Budd wrote:
| >
| > All this talk about horizontal fins is quite interesting. But
| > since warmed air rises, it would not appear to me that it would be
| > very hindered by a flat surface, open on 3 sides.
| >
| > No one has mentioned it, but the fins on the 100-amp power supply
| > Ten-Tec builds for the Hercules can be, apparently, used either
| > way - there are rubber feet that permit setting the unit with the
| > fins horizontal or vertical.
| >
| > 73,
| >
| > Budd, W5BEN
| > w5ben@arrl.net
| > Johnson City, in northeast TN
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