[R-390] Re: R390/A Cabinets

[2002tii]

Craig wrote:

>I bougth one from from Allied or Newark a few years ago.  I had a local
>custom hot rod shop use their louver punch to place louvers in the top
>and bottom of the cabinet and it worked great.

What a great idea!

BTW -- There is another way (besides fans) to get air moving -- 
chimneys.  For years, my computers, radios, and audio equipment were 
cooled by cardboard chimneys I fabricated.  Generally, the bottom of 
the chimney would be a "box" that snugly fits over the top of the 
equipment.  Each side of the "box" is topped with a trapezoid that, 
when folded and sealed together, form a pyramid.  At the top of the 
pyramid, a square tube from 4-6" on a side and 3-5 feet tall 
completes the chimney.  Most folks would be amazed how much air a 3-5 
foot chimney will move.  And there's no noise.

Of course, this presupposes that there are vents in the top for the 
hot air to exit the equipment and enter the chimney, and reasonably 
placed vents for air to enter the radio at the  bottom.  If the 
equipment has vents on the sides, but not the top, one could fit the 
chimney to one side and let air enter on the other side, for 
crossflow ventilation.

Best regards,

Don