[Amps] Muffin Fan on Swan Mark 1

2 2@vc.net
Fri, 26 Jul 2002 17:57:04 -0700

>> 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. 

-  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,