Would not a fan based on heat sensing make more sense ?
( poorly positioned pun intended )
AGSC POD  Gus S Calabrese
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On 2006-May 12, at 8:20 PM, Edward Cooper wrote:

>
> Tell us how you are trying to do an unknown thing and we may not be
> able to help.
> Tell us what you want to achieve and we'll tell you how to achieve it.

Hi Russell

I've sorted it now, changed how I was doing it, basically now a high
gain
NPN after two diodes from the left and right channels, with it
connected to the
base of a PNP(power), which controls the supply to the fan, with some
caps and
resistors in there to smooth fan operation out.  Fan runs at varying
speeds from
0.7v rms to 1.5v rms so thats quite nice.

I was just confused why I couldn't search by Vbe ON/Saturated
voltages, but I
understand why now.

Cheers, have a great weekend all.

Ed
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