The rejuvenating proceedure I use

[oldtvman]

In all my years servicing consumer electronics, I've found that the best way to restore a crt, if it comes to that, is to lay the set down face first and then proceed. this keeps the chances of the particles from lodging themselves back in the gun assembly and causing further problems. the other trick is to use a crt brightner for a short period of time and sometimes the increased filament voltage will bring the tube back for a while, then remove the brightner and see if that helps any