In article .com,
wrote:

At the moment, the rack has a 10" EG&G/Caravel Rotron fan in the top.
It moves a lot of air and generates a fair amount of noise. Not
bad in a computer room, but I want to hear the radio instead of the
fan.

So add a power resistor and drop the voltage until there is around 80V on
the fan. It will move less air, but it will be very quiet.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."