[AMPS] Harbach SB-220 Fan Noise

[Bob Alexander]

Howdy,
My SB220 has a 6" dia. 220VAC muffin fan installed with a R.S. 24 VAC
transformer used as an autotransformer to adjust the supply voltage to
around 180 VAC.
The fan has less noise and much more air than the original fan.
73, Bob, W5AH





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