[Top] [All Lists]


To: <>
Subject: [Amps] hENRY 2K-3 FAN NOISE
From: (k7rdx)
Date: Thu, 29 Aug 2002 06:55:30 -0700
Hi George...that comment really doesn`t apply as most Broadcast transmitters
are several miles away from their studios so blower noise in most situations
is not a factor. All the amps I have built and use have internal blowers
with good balance and chassis isolation and are relatively quiet..kind of
like using good engineering in origional design instead of a necessary add
on after the project is completed! I`m sure you also think of this in some
of your designs.
73 Jim.

----- Original Message -----
From: George T. Daughters <>
To: <>
Sent: Wednesday, August 28, 2002 2:39 PM
Subject: Re: [Amps] hENRY 2K-3 FAN NOISE

> Hi,
> Why all the fuss?  There has been lots of talk about noisy fans...
> > vibration (superior balance) and better CFM control. For those wanting
> > relatively quiet amps, remote blower mounting might be an
> > option.
> etc.  I can see the requirement for quiet fans/blowers and for
> remote mounting if one is in the broadcasting business.  But why
> not just put headphones on, and place a small, directional mike (if
> you use a mike at all ;>) right near your mouth, and let the blower
> BLOW!?
> I've got a fai- sized squirrel cage blowing over my 4cx1500b, full
> speed, all the time, and the tube gets, well, warm during the busy
> times of a CW contest.  Air and cool are the friends of amps...
> quiet isn't necessarily good!
> 73,
> George T. Daughters, K6GT
> _______________________________________________
> Amps mailing list

<Prev in Thread] Current Thread [Next in Thread>