CTC-5 No luminance.

[Electronic M]

Originally Posted by OS X

All of the tubes got changed in the HV area the old ones where weak or completely bad. And that's understandable I expect some problems but just not evey single time I turn on the set Lol

It don't matter if the tubes are bad! If last time it worked was with those bad tubes PUT THE BAD TUBES BACK IN and see if you get it to produce HV. If it works with the bad tubes back in then try the "good" tubes one at a time powering up between each one, until it don't work. The last good one put back before it craps out is a bad tube....If it don't work with the old bad tubes or the good new ones then the problem is likely elsewhere. The horizontal stages put voltages and loads on tubes that NO tester comes close to accurately approximating so NO tube tester CAN tell you with certainty that any horizontal tube is 'good' or 'bad'....All a tube tester can do in the case of horizontal tubes is give you a crude qualitative guess as to good it is.