Joined: Mar Sat 14, 2009 5:56 pm Posts: 2011 Location: RI, 02885
Be very careful checking continuity on WD-11's. Some voltmeters will burnout the filament. You will have to make adapters for your tube tester as I did over thirty years ago and you will need to create the setup to test the tubes reliably. If you make an error, you will fry an expensive tube. Stick to testing incircuit to avoid a costly mistake.