06-23-2012, 12:21 PM
All in all, even if the old xfmr is good, probably does not hurt to buy an inexpensive xfmr and replace it temporarily to see if it works.
Use know good tubes, see if they are ok. If yes, then install the old xfmr and carefully bring it up and see if it works.
We don't know, the tube that was gone might've been just bad.
The higher than normal voltages question remains of course. Without the load it is hard to tell how much they should rise. I suspect they are OK, as it is hard to imagine that the power transformer, having a mind of its own, all of a sudden decided to step up the output a bit more. And the rectifier tube may only make it lower, if anything, unless shorted, in which case you'd see AC, not DC output.
Well, you'll need to do some tinkering.
Use know good tubes, see if they are ok. If yes, then install the old xfmr and carefully bring it up and see if it works.
We don't know, the tube that was gone might've been just bad.
The higher than normal voltages question remains of course. Without the load it is hard to tell how much they should rise. I suspect they are OK, as it is hard to imagine that the power transformer, having a mind of its own, all of a sudden decided to step up the output a bit more. And the rectifier tube may only make it lower, if anything, unless shorted, in which case you'd see AC, not DC output.
Well, you'll need to do some tinkering.
