Zenith Roundie

[charokeeroad]

Dave's right, My tester didn't work at that moment. I think it didn't make good connection on the appropriate pins. I couldn't get my meter to come up to the cut off line. On my tester, a B&K 465, I first set the heater voltage, in this case 6.3 volts. Then I set the G1 to 40. Next I set the function switch to cut off and use the G2 control to set the meter at the cut off line. Lastly I switch the function switch to emission and see what the meter reads. I couldn't get any of that to work last night so I assumed the CRT was not emitting although it was clear that the filaments were working in all three guns. Thinking what harm could there be if the CRT was dead anyway so I turned the set on and the set had a great raster!

That's when I called Dave and he walked me through the test he described above.
When I got the set home and set up the tester again everything worked fine. I got an emissions reading of 880 on the red gun, 820 on the green gun and 820 on the blue gun. Since it had already been turned on yesterday with no ill effects I turned it on again this morning and here are some screen shots.