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Re: [TenTec] how to quiet fan noise on 425 amp

To: <Gary@doctorgary.net>,"Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] how to quiet fan noise on 425 amp
From: "Ron Castro" <ronc@sonic.net>
Reply-to: Ron Castro <ronc@sonic.net>,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 24 Dec 2007 13:30:00 -0800
List-post: <mailto:tentec@contesting.com>
Plastic bubble wrap works well, too, even though it's not 'Fung Shoey' 
either :~) !

I went on a shack-quieting tirade this past year.  The main noise-maker was 
a desktop computer that got a new ultra-low-noise power supply, CPU cooler 
and case fan.  Also now running an ACOM 2000A linear which is dead silent. 
I must have knocked the ambient noise level down 20-30 dB.

         Ron N6IE

----- Original Message ----- 
From: "Gary Smith" <Gary@doctorgary.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Monday, December 24, 2007 12:42 PM
Subject: Re: [TenTec] how to quiet fan noise on 425 amp

> Something I have done for years is to put memory foam under all the
> amps I've had. A 1" piece will absorb an incredible amount of fan
> noise. Granted it does not meet the fang sway <G> approach to an
> impeccible shack but it alone will help just about every amp become
> quieter.
> The 425 is so light without the transformer that it rests higher on
> the foam than any other amp I've used in a long time.
> I really dislike noise in the shack, my computer uses a water cooled
> heatsink with a remote water pump and 50' of tubing. That keeps the
> processor cool and the noise down to the sound of the hard drive
> spinning. I have a music studio in the same room using the same
> computer and it's far quieter than a laptop with fan.
> Gary
> ka1j

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