What am i doing wrong?

[jr_tech]

Originally Posted by jbivy

How do i check the B+ ?

Do you have a schematic?
I would use a multimeter attached to the power supply output with alligator clips (so you don't have to hold them in place) positioned so that you can see the meter while the tv is operating... watch for changes in the B+ voltage as the set goes into failure mode.
If the set uses a 5U4 or similar rectifier tube to generate the B+ voltages, try to watch it as well. What is the model# of the set... perhaps I can look it up and point out specific points to monitor.
jr