[Radio Wrangler]

With an HP storage scope, ALWAYS set the trace brightness in one of the storage modes, NEVER in 'Conv'

In 'Conv' you cannot see when you have the beam current too high and flaring occurs... it's easy to have the beam current high enough that it eventually physically cuts through the storage mesh.

There is no protection on these things. Tektronix were a bit cleverer in this area.

With a spectrum analyser, I suggest you use it in storage mode only and just turn the persistence control low so you don't get multiple trace build-up.

HP CRTs are completely irreplaceable, especially storage ones because people can easily ruin them. There aren't many storage mainframes left in working order.

David