A 200-300 Ohm 10W resistor
Carl
KM1H
----- Original Message -----
From: "Bill W5WVO" <w5wvo@cybermesa.net>
To: <amps@contesting.com>
Sent: Tuesday, December 15, 2009 6:18 PM
Subject: [Amps] Alternative cooling strategies for SB-220?
>I have a 6-meter-converted SB-220 equipped with the upgraded
> Harbaugh cooling fan, which provides more air circulation volume
> than the original Heathkit fan. It does a great job, but sounds
> like a B-17 revving up for takeoff. My XYL can't stand being in
> the same room with it. What solutions have any of y'all come up
> with to quiet this or similar amps' cooling fans? Like for
> example, are blowers generally more quiet than muffin fans? Any
> other ideas?
>
> Bill W5WVO
>
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