10-22-2023, 10:39 PM
yes, that's the idea. With all the tubes out (one of which is the rectifier) everything is unloaded, so this is a good way to test the xfmr.
Put on Variac, put the meter on AC and the probes to the rect tube's panel's between the plates (right in the holes), and see it rising to 500-600VAC or so while bringing the Variac to 110VAC (gradually). If this is OK, then it is more likely than not that the filament winding is also OK, but check it nevertheless, same way, probes into the rect tube's panel's filament holes.
Put on Variac, put the meter on AC and the probes to the rect tube's panel's between the plates (right in the holes), and see it rising to 500-600VAC or so while bringing the Variac to 110VAC (gradually). If this is OK, then it is more likely than not that the filament winding is also OK, but check it nevertheless, same way, probes into the rect tube's panel's filament holes.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
