[R-390] RE: Hammond R-390A cabinets through Fair Radio and other sellers

[Roy Morgan]

On Apr 8, 2008, at 8:34 AM, Phil wrote:

> Hi all!
>
> I bought one of the unvented black Hammond tabletop
> rack cabinets for my R390A two or three years ago,...
>
> I installed two 3 inch, 32 cfm cooling fans ... Noisy
> ,... about 70 to 80 volts is ideal.

Phil,

Try some capacitance in series with the fans.  You may quickly find a  
value that is just right (as is the ~75 volts).  The nice thing is  
that the cap contributes no heat as a resistor does.  Not that the  
heat is very much.

  Roy