|
Pull the top lead off of the H output tube and check the grid for the proper waveform with an oscilloscope, and also do voltage checks.
Replacing just the electrolytic type power supply caps is not enough to safely run a tube set. You need to replace all the paper dielectric type caps as well or the set will either not work or is left as ticking time bomb counting down to failure and possible destruction of other (often unobtainable) parts.
|