<HTML><FONT FACE=arial,helvetica><HTML><FONT SIZE=2 PTSIZE=10 FAMILY="SANSSERIF" FACE="Arial" LANG="0">>Probably. But I'd be inclined to be *sure* that it was the transformers, <BR>
>first. Take a rod, non-metal, and see if you can "probe" for that <BR>
>vibration somewhere. If it _is_ the transformers, then maybe the <BR>
>application of some silicone rubber would fix the problem.<BR>
><BR>
>> or, is there some other way to cure the hum? it can be quite distracting.<BR>
><BR>
>See above. Another, more likely cause, is aging electrolytic caps, <BR>
>particularly those large ones in the power supplies. These seem to be quite <BR>
>a common problem in a lot of equipment.<BR>
<BR>
Electrolytic caps seem to usually be a problem on gear older than a Nord Lead to me.</FONT></HTML>