This question may be rhetorical in nature and I should have put it to rest a long time ago. Nonetheless,when directly substituting mercury vapor rectifiers with plug-in SS substitutes like the STBR3B28, et al, is it necessary or desirable to ensure that the HV take off is not wired to the original filament pin that would require the HV to pass back through the HV transformer filament winding? I know the winding has insulation for the HV and not the issue.Fact is, I've always simply plugged them in and they work. Much about nothing? TNXJeep K3HVG
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