10-06-2026, 12:59 AM
Richard,
Thanks for confirming. I haven't adjusted the alignment directly, recently, but I did work on the 2nd IF transformer to fix the voltage issue on the IF 6K7. I suspect it will need an alignment performed as a result. I also suspect that in the reassembly I may have created a short somewhere, somehow, that is supplying different, higher voltages into the tuning section, in particular, the oscillator section, and sending the voltages on the oscillator portions of the 6A8 through the roof.
After testing the 6A8 tube in case of any miraculous shorts (it didn't have one, according to my tester, at least), I think my next step is to try cutting the proper connection to power from this section (red line in the lower left of image) and see if I find there's still power/continuity from elsewhere, outside of this circuit, and do process of elimination from there. There shouldn't be, at least according to my reading of the schematic, any way for power to get into the oscillator plate except through the light green highlighted path, so if it is, then I've probably erred somewhere in the last 36 hours.
Best wishes,
Roy
Thanks for confirming. I haven't adjusted the alignment directly, recently, but I did work on the 2nd IF transformer to fix the voltage issue on the IF 6K7. I suspect it will need an alignment performed as a result. I also suspect that in the reassembly I may have created a short somewhere, somehow, that is supplying different, higher voltages into the tuning section, in particular, the oscillator section, and sending the voltages on the oscillator portions of the 6A8 through the roof.
After testing the 6A8 tube in case of any miraculous shorts (it didn't have one, according to my tester, at least), I think my next step is to try cutting the proper connection to power from this section (red line in the lower left of image) and see if I find there's still power/continuity from elsewhere, outside of this circuit, and do process of elimination from there. There shouldn't be, at least according to my reading of the schematic, any way for power to get into the oscillator plate except through the light green highlighted path, so if it is, then I've probably erred somewhere in the last 36 hours.
Best wishes,
Roy




