SH>                           
SH>I recently purchased a used Adcom GFA-535 amp and GTP-400 preamp.
SH>Everything works fine except that the amp emits a very noticeable click
SH>sound mostly from the right channel during use.  This is very similar t
SH>single click the amp emits when it is turned off, but the clicking duri
SH>is produced when certain electrical devices (doorbell, some light switc
SH>fans, etc.) are switched on or off.
Has it always done this?  The last amp that I had that did that got worse 
over a few months and finally went dead in one channel.
I got guess I got lucky as burglars carried the bad amp off with all my other 
stuff.   I had great insurance.
Dennis
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