--- Lee Williams <[EMAIL PROTECTED]> wrote:

> I on the other hand run my fans 24/7,why switch them
> at all? 28 years 
> with the same PA transistors,I guess GE had the
> right idea!   73,Lee
> 
> Chuck Kelsey wrote:
> > Maybe I'm missing something here, but I've never
> subscribed to the theory of 
> > having fans run beyond PTT. What purpose does it
> serve? The transistors are 
> > generating heat only when they are "on." As soon
> as they are "off" they 
> > begin to cool down on their own. If the fans are
> doing their job, they are 
> > keeping temperatures to a prescribed level the
> entire duration of transmit. 
> > While running the fans beyond the end of transmit
> will cool the finals after 
> > the end of the QSO quicker than without, why
> should it matter?
> >
> > Chuck
> > WB2EDV
> >
>
Unless it is big fans I like to run them 24/7 myself. 
The muffin type fans can't draw all that much extra
current.


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