| Job nearly done
A much later update....
I did replace the 6" fan blades in both top vents of the A/S.
The Thorgren blades were small and the Grainger 9" blades surely pull a lot more air thru the top vents.
One minor modification was to replace the aluminum straps holding the motor with two longer ones that I could bend down at both ends to create a 'drop' of about 7/8" on the motor. That allowed sufficient clearance when the top vent was cranked down. I simply put them in a vise and bent two angles at both ends.
Next is to add one or two slower speeds. Pahaska (John) used 2 - 15 ohm resistors to reduce the voltage down slightly for a slower speed.
My question based on Internet search was to maybe use silicon diodes to reduce the voltage down perhaps more efficiently.
However my Radio Shack stores are not of much help in this reguard. Any electricians on board?
Steve in Sav'h
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