Carbon composite in place of carbon film

[DaveWM]

its not that you are aiming for those that is just what sams got, my concern is if you deviated from the correct G2 setup procedure, then the bias of the tube may be off, making other things (maybe the jail bars) become an issue.

just do the setup as defined in sams, check the voltages and post back the results if brightness is still an issue then need to look at the other voltages and try to figure out why, brightness should not be an issue with a good tube with correct HV and pin voltages.