[AMRadio] Audio Warble?

[kenw2dtc]

This is weird but worth mentioning.  I had a rig with a warble and it turned 
out to be the fan.  When the blades were turning, it put some crud on the 
power supply.  It may have been a DC to AC converter in the hub of the fan. 
?    Anyway, jam something into the blades and turn on the rig, if the 
warble is gone then you found it.  I know this is really off the 
wall...................
73,
Ken W2DTC