[TenTec] Re: [Orion] Orion Panel Heat

Rick Westerman Rick at dj0ip.de
Tue Dec 2 23:42:32 EST 2003


Guys,

Place a few diodes (i.e., 1N4007) in series with the +13v to the
fan and watch the noise disappear!

The reality is, it doesn't take much air movement to keep the rig
cool and dropping 3 or 4 volts to the fan reduces the noise
enough to effectively cut it in half!

This is a 30 cent mod.

73
Rick

-----Original Message-----
From: tentec-bounces at contesting.com
[mailto:tentec-bounces at contesting.com]On Behalf Of Grant Youngman
Sent: Tuesday, December 02, 2003 8:20 PM
To: tentec at contesting.com; orion at contesting.com
Subject: [TenTec] Re: [Orion] Orion Panel Heat


> BTW,  this fan is very quiet!

Interesting that ARRL found the fan to be noisy in their review.
Well, I just ordered one, after thinking about playing with some
digital modes -- so I wonder if I'll get one of the "noisy" ones,
or one
of the "quiet" ones :-)

Grant/NQ5T

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