I bought the 12-volt motor from NAPA (#655-1020, $29.33). Turns out using one of those 1.5 ohm resistors gave a nice high speed. Papers are blown around the floor!

A second one of those resistors in series gives a nice lower speed so I used my earlier setup for 12-v supply/6-v motor in a conduit box inline with the driver's side defroster.

I've drawn in the wire that goes to the fan. The other 2 wires are connected to the 12-v supply by an On-Off-On switch. I'm really happy with it. Too bad we're unseasonably warm!

Thanks guys!

- Resistors in Conduit Box.

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Last edited by Wally / Montana; 11/20/2012 6:40 PM.
1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.