JL> Get this...I can turn off the TV and even unplug the TV, and the hum s
JL> exists as long as the output jacks from either the TV or VCR are tied 
JL> either the preamp or amp.  It's like the amp doesn't like the input lo
JL> presented by the TV.  Any other ideas?
JL> Later.
Did you try unplugging the cable tv cable from the tv.  It's the difference 
in 
ground potential between the cable and your electrical wiring that's causing 
the 
hum.  You need to get the cable grounded near your ac ground so that both 
have the 
same ground potential.  Same ground potential=no hum
Dennis Jenkins
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 * PW * sorry no taglines
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