[Amps] Quiet Cooling

[K7RDX]

Great idea (Been used by many) but much of the noise generated cooling
tubes/tank circuits/transformers is wind noise....Perhaps an exit for heated
air would solve this problem for some of the commercial amps built for hams
that sound like a turbo prop airplane.I use a semi-enclosed area on one side
of my shack thats ventilated inside/outside for my HB amps and I don`t have
a noise problem....Jim.
----- Original Message -----
From: "Harold B. Mandel" <ka1xo at juno.com>
To: <AMPS at CONTESTING.COM>
Sent: Monday, September 06, 2004 11:16 AM
Subject: [Amps] Quiet Cooling


> Sirs,
>
> The thread about quiet cooling of amplifiers made me think back to
> my college days when among studies of alcoholic consumption,
> music appreciation and techniques for attracting YL's I studied
> pipe organ construction and repair.
>
> The musicians do not want to hear the air blower mechanism when they're
> keyboarding and neither does any audience or congregation.
>
> What pipe organ builders do is to isolate the blower in another room
> and use a "wind-column" to supply the wind chests under the pipes
> with pressurized air.
>
> Could not this technique be applied to amplifiers? Remove the noisy
> blower from the shack and connect flexible hose to a clamped fitting
> on any equipment needing cooling. A much beefier fan could be
> employed than would fashionably fit on a rear apron, and a
> manifold system could be arranged so that more than one piece of
> gear could benefit
>
> Hal
> W4HBM
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps