----- Original Message -----
From: "2" <2@vc.net>
To: "Steve Katz" <stevek@jmr.com>; " AMPS" <amps@contesting.com>
Sent: Saturday, July 27, 2002 1:57 AM
Subject: RE: [Amps] Muffin Fan on Swan Mark 1
>
>
> >
> >
> >
> >> An IR thermometer, a manometer, and some horse sense are more
> >> trustworthy than computer modeling -- i. e., if the thermometer says
> >> it's too damn hot, and the computer app says it's not, it is.
> >>
> > //<chuckle> The computer model is used for designing enclosures, not
> > testing them. It reduces design time because there's less repetitive
> > empirical stuff that needs to be done, and modeling can also help reduce
> > cost because it can lead you to inexpensive practical solutions that
might
> > otherwise be overlooked. Then, when testing says it's too damn hot, you
> > start again. -WB2WIK/6
> >
> ** I build a cardboard box mock-up enclosure, duct-tape stuff in place,
> measure the delivered pressure with a manometer, and, if needed, I make
> changes. I have found few blowers blower that meet the mfg's claimed
> specs. // The rule of thumb for blower selection: If the tube blows
> out of the socket when one's thumb is removed from the anode, a smaller
> blower is probably a good idea.
>
I've been trying to find a blower powerful enough to blow my 4CX1000A
out of it's socket for ages... perhaps the socket's faulty?
Mike G8TIC
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