Name: Steve Kennedy
Email: steve@pacair.com
Subject: Trouble MM HD-130
Thread: 165
Time: Mon, 24 Sep 2001 03:10:11 UTC
It could be a shorted output tube or other component in the output stage or it could be in the HV power supply.
The basic function that occurs when you switch from standby to operate is that the plate voltage is applied to the output tubes.
Blowing a fuse at this point shows that the high voltage (400/700Vdc) power supply circuit or the plate circuit of the output stage is at fault.
Steve