[Boatanchors] Cooling Fan

Wed, 9 Jul 2003 11:58:47 -0400

Bill:
another method is to use a series capacitor of the appropriate value to get
the speed that you want.

Its value could be calculated if you know the  complex impedance of the fan
, but it is a lot easier to use a decade box or some junk box caps of
various values , and just try them.

No wasted heat as with a series resistor.

Dave W1DWZ
----- Original Message ----- 
From: "Bill Pancake" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 09, 2003 11:29 AM
Subject: [Boatanchors] Cooling Fan

> There's probably a simple answer to this question but it escapes me right
now. Is there a simple way to reduce the speed of a 115VAC muffin fan so it
runs about 1/2 its normal RPM?  Thanks & 73, Bill, K0JWP
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