[Moon-net] AIR FLOW 3CX1500

[Peter Voelpel]

I would not use a vacuum cleaner, they consume a lot of power.
The EBM-Papst model G2E108AG6301 is perfect to run a 8877 full power/24h and
wants 30W only.
No problem to install it in a remote cabinet and use an air hose with it

www.ebmpapst.com

73
Peter


-----Original Message-----
From: Moon-net-bounces at list-serv.davidv.net
[mailto:Moon-net-bounces at list-serv.davidv.net] On Behalf Of Pat Barthelow
Sent: Freitag, 18. August 2006 15:05
To: duz at wanadoo.fr; Moon-net at list-serv.davidv.net
Subject: Re: [Moon-net] AIR FLOW 3CX1500

Philippe:

Re heavy duty use of the 3CX 1500  (8877) on 2m, the site:

http://www.g8wrb.org/data/Eimac/3CX1500A7.pdf

Shows for HF, a minimum of 38 CFM at .6 " Hg  backpressure is required, with

higher values called for at higher frequencies.
That is a pretty strong blast of air,  requiring a pretty strong squirrel 
cage type blower...Or, If I was building it  here in the US, I might go to 
Walmart, and find a cheap, small Shop Vac Vacuum Cleaner and route its 
output hose into the amp air plumbing, from some distance, or through the 
wall of the shack to minimize in-shack noise.   Good luck...

73, DX, de Pat AA6EG aa6eg at hotmail.com;
                  Skype:  Sparky599

>From: "F1DUZ" <duz at wanadoo.fr>
>To: "Moon-net" <Moon-net at list-serv.davidv.net>
>Subject: [Moon-net] AIR FLOW 3CX1500
>Date: Fri, 18 Aug 2006 10:01:01 -0000
>Hi all,
>
>I would like to use a 3cx1500 on 2m in JT65, what is the minimum air flow 
>needed to have a good and safe cooling (in CFM or m3/h ) ?
>
>Thanks for answer
>
>best 73 all
>Philippe
>F1DUZ IN97nj
>Philippe Levron
>Malvaux
>49570 Montjean-sur-Loire
>France
>duz at wanadoo.fr



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