Ground Loop "Hum" Using BT Modulator

[vts1134]

Originally Posted by Phil Nelson

My AM60-550A modulator developed the slow-moving horizontal bar after a couple of years of continuous use. Replacing the electrolytics in the power supply cured it:

http://antiqueradio.org/HomeTVTransmitter.htm

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html

This is where I was leaning, but I thought I'd ask first. How did you get that board out? It seems like it is adhered to the side of the chassis with something in addition to the three screws.