Hi, Set came with no Vert.Replaced vert. chip LA7838 by removing the heat sink along with the chip When I put the heat sink back in I didnt pay enough attention and it came into contact with the heat sink the Regulator is on. Started the set the heat sinks sparked and set went dead. Replaced both Reg. and Vert. chip, the HOT seems to be OK, only 10v on the Coll. though. Cant seem to find any componants bad. Could it have taken out the FB. Thanks, Dave Koch Electronics _________________________________________________________________ Say ?good-bye? to spam, viruses and pop-ups with MSN Premium -- free trial offer! http://click.atdmt.com/AVE/go/onm00200359ave/direct/01/ ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/