[AMRadio] R-390 heat and covers...

[Geoff Edmonson]

On 05/11/2011 11:25 AM, Rick wrote:
> It seems I remember some saying it's best to leave, at least, the bottom
> cover off the R-390/URR when rack mounted due to the extreme heat generated
> by the regulator tubes. In fact, I think some have mentioned placing a small
> muffin fan to draw the heat away from the inside of the rack. I would
> appreciate any comments on this.
>

That's always good advice for any device that generates heat.  Heat 
kills.  Fans are often found on Rangers, Viking II's and any other tube 
gear that generates heat.

Copious amount of air flow will extend the life of most any piece of 
equipment that converts electricity into heat.

-Geoff/W5OMR